Physics High School

## Answers

**Answer 1**

The **galaxies **are moving away from us.

The **galaxy **is many thousands to hundreds of millions of the stars held together by gravity; typically **surrounded **by black hole at the center.

Cosmic **background **radiation is **leftover **heat from **Big **Bang.

What is galaxy?

A galaxy is a vast collection of stars, **solar **systems, gas, and dust. Gravity holds a **galaxy **together. A supermassive black hole also resides in the center of our **galaxy**, the Milky Way.

You see additional **stars** in the Milky Way as you look up at the stars in the night sky. According to some researchers, the **universe **may contain as many **galaxies **as there are stars.

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## Related Questions

true or false: to achieve good piezoelectric response, a material should have both a high piezoelectric coefficient and have high electrical resistivity.

### Answers

The given statement " to achieve good piezoelectric response, a **material** should have both a high piezoelectric coefficient** **and have high electrical resistivity." is false because to achieve **good piezoelectric response**, a material should have a high piezoelectric coefficient, but low electrical resistivity.

A **high piezoelectric coefficient **means that the material has a strong ability to generate an **electrical charge** when subjected to mechanical stress, which is the hallmark of good piezoelectric performance. However, high electrical resistivity reduces the flow of electrical charge, which can hinder the performance of piezoelectric materials. Therefore, to achieve good piezoelectric response, a material should have a high piezoelectric coefficient and **low electrical resistivity.**

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2. Which is done by a machine?

A -increase work

B- increase force

C- change force

direction

D-increase velocity

### Answers

A **machine** can increase force, change force direction, increase velocity.

What is work?

A machine is a** physical system** that use power to exert forces, regulate movement, and carry out an action. The phrase is frequently used to refer to both manmade devices that use engines or motors as well as natural biological macromolecules like molecular machines.

To make the process easier, machines are utilized. In general, it is believed that machines enhance the quantity of work done in order to do the task quickly. However, this is untrue because** energy** is a form that can only be transferred, not created or destroyed, as work is a form of energy.

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what is one type of light that the sun emits but a light bulb does not?

### Answers

The **sun **emits** Ultra-violate **light but a light **bulb **does not.

What is sun?

A heated ball of incandescent gases at the centre of our **solar **system, the **sun **is a star. Beyond the distant Neptune and Pluto's orbits, it has a significant **impact**.

There wouldn't be any life on Earth without the **sun's **powerful energy and heat. Even though it is unique to us, the Milky Way **galaxy **is home to billions of stars similar to our **sun**. The Earth would be the size of a US coin if the **sun **were the height of a standard front door.

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question neglecting air friction effects, what path does the package travel as observed by the pilot?

### Answers

The correct answer is the United States why I lie .

If you have 200 lbs of coal in your shed and you burn 1 lb a day, how long will it last? a. 200 days b. forever c. 20 days

### Answers

The provided statement declares that the **amount **of coal will only last 200 days.

What materials make up coal?

It mostly consists of carbon and compounds, which may release energy through **combustion **(burning). The most common oil and coal in the US is coal, which is also the world's greatest energy source for producing power.

Coal is measured in pounds, and one pound is equivalent to one pound. When there are many pounds, the measurement is made in pounds.

Now ,

Total amount of coal = 200 lb

Volume of coal used per day = 1 lb

Therefore,

The required number of day the coal will last = ( total volume of coal )÷ ( Volume of coal uses each day )

= 200lbs ÷ 1

=200

The provided volume of coal will thus last for 200 days.

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if the charge q is displaced from the center a small distance x as shown in the figure, will it undergo simple harmonic motion when released?

### Answers

A ring with a **radius of R **is evenly covered in positive charge Q. At a distance of x from the centre, a particle with mass m and a **negative charge **q is positioned on its axis.

What is the distribution of positive charge Q?

A ring with a radius of R is uniformly covered with a **positive charge Q.** At the centre of the ring is a small test charge, q.

Then. If q > 0 and is **displaced** in the plane of the ring away from the centre, it will be pushed back in that direction.

**Charge q** will return to its original place after travelling once around a circle with radius r.

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the following four objects roll without slipping along a horizontal surface toward an incline. the velocity of the center of mass of each of the objects is the same at the bottom of the incline. which of the objects will roll the greatest distance up the incline before coming to rest?

### Answers

The **objects** will roll the greatest distance up the **incline** before coming to rest is object which has shape: ring mass:M and R:2r.

Definition of inclined Plane

**Inclined plane** is a flat plane that is placed obliquely (forming a certain angle) so as to minimize the power force. As we know, the power force is the force exerted on a particular object. This time, our discussion is about the force exerted to move the object.

In addition to the definition above, an inclined planemeans a flat **surface** that has an angle, which is not a perpendicular angle, to the horizontal surface. So in essence, this inclined plane has an **angle** that is less than 90°.

The working **principle** of an inclined plane is to overcome large obstacles by applying a relatively smaller force over a longer distance, than if the load was lifted vertically. In civil engineering terms, the **slope** (the ratio of height and distance) is called the gradient.

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An indicator that orients you when describing a motion is called the_____

A. time

B. Speed

C. reference point

D. point of motion

### Answers

An indicator that orients you when defining a **motion** is called the *reference point*. The reference point provides a fixed frame of reference for observing and describing the position, velocity, and acceleration of an object.

How can you explain the use of reference point?

If you are describing the motion of a car on a highway, you can use the side of the road or a specific landmark as the reference point. By using a reference point, you can determine the position, **velocity**, and acceleration of the car.

How can you determine an object is in motion?

An object is considered to be in motion if its position changes relative to a reference point over time. There are several ways to determine if an object is in motion like Observing its position, measuring its velocity and observing its acceleration.

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but wait a minute! suppose i have normalized the wave function at time . how do i know that it will stay normalized, as time goes on, and evolves?

### Answers

The **normalization** of a wave function is a property that can change over time as the wave function evolves due to the **Schrödinger equation**. However, it can be shown that if a wave function is normalized at one time, it will remain normalized at all later times if the Hamiltonian operator is a self-adjoint operator.

The time evolution of a wave function is given by the **Schrödinger equation**, which is a partial differential equation that describes the evolution of a wave function over time. The Schrödinger equation can be written as:

iℏ ∂ψ/∂t = H ψ

where ψ is the** wave function**, H is the **Hamiltonian** operator, and i is the imaginary unit. The Hamiltonian operator describes the total energy of the system and includes the kinetic and potential energy of all particles in the system.

If the Hamiltonian operator is a self-adjoint **operator**, it can be shown that the norm of the wave function (i.e. the square of the wave function integrated over all space) is constant in time, meaning that the wave function will remain normalized as it evolves over time. In other words, if the wave function is normalized at one time, it will remain normalized at all later times.

This property is a result of the unitary nature of **quantum mechanics**, which ensures that probabilities are conserved in time. The norm of the wave function represents the probability density, so if the wave function is normalized, the probabilities of all possible outcomes add up to 1.

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if the force of a golf club on a golf ball is 200 n forward, what will the force of the ball on the club be?

### Answers

The **force **exerted by the ball on the club will be comparable in magnitude but will be applied in the opposite direction. "For every action, there is an equal and opposite reaction," states Newton's third rule of motion. Therefore, the ball will exert a -200 N rearward force on the club.

What are the names of the two opposing forces?

Third law of **motion **These two forces—also known as action and reaction forces—are the subject of Newton's work. The following is how Newton's third law is formally stated: Every **action **has an equal and opposite response.

What does a force unit mean?

The **newton**, abbreviated N, is the SI unit of force. The force-relevant base units are The symbol for the length unit known as the meteris m. the kilogram(kg), isa unit of mass. The sign for the unit of time is sor the second.

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what constant acceleration does mary now need during the remaining portion of the race, if she wishes to cross the finish line side-by-side with sally?

### Answers

Mary should **speed **up at a rate of 70 ms - 2 if she and Sally must crossing an end of the race side by side.

Why is acceleration a good thing?

Acceleration refers to the speed at which velocity changes. It's not always the case, but acceleration **frequently **denotes a shift in pace. The direction of an object's **motion **is changing, even though it moves in a circular pattern and keeps the same speed.

What is acceleration? What is its SI equivalent?

In physics, acceleration is the rate at which the **velocity **of the an object **changes **in relation to time. According to Newton's Second Law, the sum of all loads exerted on an item results in its acceleration. Meter per seconds squared (m s2) is the unit of acceleration used in the SI system.

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The formula vw=f⋅λ

describes the relationship between the speed of a wave (vw) , and its frequency (f) and wavelength (λ)

For example, if a wave has a frequency of 120 Hz and a wavelength of 5m, it would have a speed of 600 m/s.

In one or two sentences, describe what would happen to the frequency of this wave if the wavelength is increased to 10m but the speed stays the same at 600 m/s.

### Answers

If the **wavelength** of the **wave** is increased to 10m and the speed stays the same, the **frequency** of the wave will be halved i.e. 60Hz.

What is the relationship between frequency and wavelength?

**Wavelength** is the length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next.

The **wavelength** is often designated in physics as λ, and corresponds to the velocity of the wave divided by its **frequency**.

λ = v/f

This equation reveals that the **wavelength** is inversely proportional to the **frequency** of a wave. Hence, if the **wavelength** of the wave in this question is increased to 10m, the **frequency** will decrease by half i.e. 60Hz.

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a mass of 10-g of oxygen fills a weighted piston/cylinder device at 20 kpa and 100oc. the device is now cooled until the temperature is 0oc. determine the change in volume of the device during this cooling

### Answers

The change in **volume** of the device during this cooling is calculated to be -0.013 m^3.

What is pressure?

**Force** that is applied perpendicular to surface of any object per unit area over which force is distributed is called as pressure .

Pressure remain **constant** for weighted piston cylinder

So, P1 =P2

We know gas constant ,R = 259.81 j/Kg- K = 0.2598 kJ/kg K

Given, m1 =m2 = 0.01 kg; P1 = 20kPa; T1 = 100 degree C = 373 K

and T2 = 0 degree C= 273 K

As we know, P1V1 =m RT1

So, V1= m RT1/P1

= 0.01 * 2.598 *373/20

V1 = 0.0484 m3

As, P2V2 =m RT2

V2= m RT2/ P2

V2 = 0.01 * 2.598 *273/20

So, V2 = 0.0.3546 m3

Now, ΔV = V2 - V1

= 0.0354 - 0.0484

= -0.013 m3

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a stationary bagpiper is playing a highland bagpipe, in which one reed produces a continuous sound of frequency 440 hz . the air is still and the speed of sound is 340 m/s . what is the wavelength of the sound wave produced by the bagpipe?

### Answers

The **wavelength **of the **sound **wave produced by the bagpipe is **0.773 m.**

What is a wave length?

The separation between two identical locations in two succeeding **waves **is known as the wavelength of a wave. The separation between each wave's crest (or trough) and the next is known as the **wavelength**. Equations that describe wavelength use the Greek letter **lambda **as the representation.

The **wavelength **of **light **determines its hue, much as the wavelength of sound determines its pitch. The **visible spectrum **of light has wavelengths between around 700 nm (red) to 400 nm (violet). Audible sound has a wavelength that ranges from 17 mm to 17 m. Compared to visible light, audible sound has much longer **wavelengths**.

Given, **Frequency **of sound, **f = 440 Hz**

**Speed **of **sound**, v = 340 m/s

For the **wavelength **of the sound wave,

**v = f × λ**

Putting the values,

λ = [tex]\frac{340}{440}[/tex]

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the heavyweight boxing champion of the world punches a sheet of paper in midair, bringing it from rest up to a speed of 27.5 m/s in 0.056 s . the mass of the paper is 0.003 kg . part a find the force of the punch on the paper. express your answer to two significant figures and include the appropriate units.

### Answers

The world **heavyweight **boxing champion punches a piece of paper in midair, accelerating it from rest to 23.0 m/s in 0.060 seconds. The paper weighs 0.003 kg.

How do you gauge a punch's momentum?

Transferring **momentum **is the key to receiving a punch. If you don't take action, the force of the fist striking you will be transmitted to your body. A fist has a mass of m and moves towards you at a given velocity, v. Momentum (p = mv) is equal to the product of mass with **velocity **(mass times velocity).m=0.003kg , v=26.5m/s u=0(the paper is punched from rest) t=0.044s F=1.8N

What is the punch's force?

An average human punch produces 360–450 pounds of **force **altogether, or 120–150 psi. **Remember **that these figures are averages, meaning that some persons fall outside of the range on both the lower and upper ends.

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one electron is on the ground. another electron is in the air, and is at the exact location where the upward force of repulsion between the two charges is equal in magnitude to the weight of the electron. what is the distance between the electrons?

### Answers

The distance between the two **electrons** is q√K/2mg,where q is the **charge **of the electron.

The electron ( e or β ) is a **subatomic** molecule with a negative one rudimentary electric charge. Electrons have a place with the original of the lepton molecule family, and are by and large remembered to be rudimentary particles since they have no known parts or base

We know that **force** exerted by each electron on other is** electrostatic **force which is given by the formula,

F=(Kq₁q₂) / r²

where q₁,q₂ are the charges of the electron and r is the** distance **between them.

Since,both are electrons,q₁=q₂.

Now,both electrons have some mass which we assume as m.Due to presence of acceleration due to gravity,both act certain amount of force which is equal to their weight i.e.mg

So,total **weight** of two electrons is=2mg

Now,2mg=(Kq₁q₂) / r²

=>2mg=Kq²/r²

=>r²=Kq²/2mg

=>r=√Kq²/2mg

=>r=q√K/2mg.

Hence,distance between two electrons is q√K/2mg.

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(Complete question) is:

one electron is on the ground. another electron is in the air, and is at the exact location where the upward force of repulsion between the two charges is equal in magnitude to the weight of the electron. what is the distance between the electrons?Assume q as charge,m as mass of electron.

choose the correct definition of precession, and the correct explanation how does it affect what we see in our sky?

### Answers

**Precession **is the slow and continuous change in the orientation of the rotational axis of a spinning body, such as a spinning top or the Earth.

When compared to its orbital **plane **around the sun, the Earth's **rotational **axis tilts at an inclination of about 23.5 degrees.

The Earth's rotational axis travels in a round pattern in space as a result of precession; one full cycle takes about 26,000 years to complete. The **celestial poles**, which are the spots in the sky where the Earth's rotational axis crosses the celestial sphere, are impacted by this movement of the rotational axis.

The Earth's spinning axis points in a different **direction **over time as a result of **precession**, which affects the position of the celestial **poles**. The position of the stars as seen from Earth is then impacted by this.

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A body does 10 Jules of work in 2 seconds? What is it’s power?

### Answers

The** work done **is 10 J and it took 2 seconds to do the work.

So, power = work done / time taken

Power = 10 J / 2 s

**Power = 5 Watts**

So, the body has a power of 5 Watts.

**What is power?**

Energy transfer or work output is measured in terms of power. It has a scalar value and is quantified in **watts (W). P = W/t, **where P represents power, W is the amount of work completed, and t is the amount of time required, which is the formula for power.

Power can be used to define the rate of heat transmission in a system, the rate at which a machine performs work or the rate at which energy is **transferred in a circuit. **It is a key idea in physics since it is applicable to many disciplines, such as electrical engineering, mechanics, and thermodynamics.

Power is also referred to as activity in ancient writings. A scalar quantity is a power.

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what is energy efficiency? if a machine is not 100% efficient does it violate the law of conservation of energy? why or why not?

### Answers

**Energy efficiency** refers to the use of less energy to perform the same tasks.

Meanwhile **law of conservation of energy** states that energy cannot be created or destroyed, only converted from one form to another; a machine's efficiency below 100% does not violate the law of conservation of energy because some energy is inevitably lost as waste heat during energy conversion processes.

**Energy **efficiency refers to the ability to perform a task using the minimum amount of energy necessary. Energy efficiency is important because it helps reduce the energy consumption and greenhouse gas emissions that result from energy production.

A **machine **that is not 100% efficient does not violate the law of conservation of energy because energy is not destroyed, only converted from one form to another. When energy is converted from one form to another, some energy is inevitably lost as waste heat. According to the principle of energy conservation, energy can neither be created nor destroyed; rather, it can only be transformed from one form into another.

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A California geothermal power plant generates 4.3 MW by extracting 24 MW of heat from an underground source at 108° C and then discharging waste heat into the 17° C air. What is the actual efficiency of the plant?

### Answers

The actual efficiency of the **plant **is [tex]17.9[/tex]%.

What do you understand by geothermal power?

**Geothermal **power is a form of renewable energy that harnesses heat from the Earth's interior to generate electricity. This heat is captured through geothermal wells or reservoirs and used to drive a turbine to generate electricity.

What are the heat sources of geothermal power?

The **heat **sources can be found in areas with volcanic activity or hot springs. Geothermal power is considered a clean and sustainable source of energy, as it emits deficient levels of greenhouse gases compared to fossil fuel power plants.

The actual efficiency of geothermal power will be:

**Efficiency **= (Net electrical output) / (Heat input)

Net electrical output [tex]=4.3 M W[/tex]

Heat input [tex]=24MW[/tex]

Therefore, Efficiency [tex]=4.3/24=0.179[/tex] or [tex]17.9[/tex]%.

So, the actual **efficiency** of the plant is [tex]17.9%[/tex]%.

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et's compare two telescope's ability to see dimmer objects. one telescope has a a 150mm mirror and the second telescope has a 250 mm mirror. which one can see dimmer objects?

### Answers

**Reflectors **and refractors are the two primary categories of optical telescopes. Refractors utilise a lens to focus light, while reflectors use a mirror.

Can larger telescopes see objects that are fainter?

Compared to tiny telescopes, large telescopes can collect more light. Dimmer objects become visible in more light, and there is more light available for analysis. To gather enough light to perform **spectroscopic **analysis on an extremely dim object.

one **telescope **has = 150mm

second telescope has = 250mm

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what is the ratio of the magnitude of the acceleration of an electron to that of a proton, when the electric field acting on each has the same strength?

### Answers

At a point x distance from a point charge Q, the ratio between the strength of the **electric field** and the strength of the electric potential will be 1/x.

From an electric field's electric potential, how can you determine its size?

The electric field can be calculated from the **electric** potential if it is known at all points in a given area of space. The electric field is represented in vector calculus notation as E = grad V, where grad V is the electric **potential's **gradient.

How can you determine a magnetic field's strength?

The equation specifies how much force will be exerted on a wire carrying current I and having length L in a **magnetic field**. is the angle formed by the wire and the magnetic field in the equation F=ILBsin. Considering that the field and curve are perpendicular to the force,

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what is the black hole at the center of the milky way called

### Answers

The **Sagittarius** A black hole, which is located near the Milky Way's center, made the statement.

Why is it called the Milky Way?

A Greek tale about the **milk-sprinkling** goddess Hera gave rise to the name of the Milky Way. Our galaxy has numerous names in those other areas of the globe. It is known as the "Silver River" in China and the "Backbone of Night" in the Kalahari of southern Africa.

Where is Earth in the Milky Way?

The Milky Way's Orion Arm, which is around two-thirds of the galaxy's distance from the galaxy's core, is where **Earth** is situated. Here, we are one of the eight planets that make up the Solar System.

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a hybrid electric vehicle has an epa gas mileage rating of 59 mi/gal in the city. part a how many kilometers can the car travel on the amount of gasoline that would fit in a soda can? the volume of a soda can is 355 ml.

### Answers

The **distance **traveled by **electric **vehicle will be 8.9 km.

EVs are vehicles that are either partially or fully powered on electric power. **Electric vehicles **have low running costs as they have less moving parts for maintaining and also very **environmentally friendly **as they use little or no fossil fuels (petrol or diesel).

The car **travels **59 miles in 1 gallon.

1 mL has 0.000264 gallons

For 355 mL = 0.09378 gallons, the car will travel,

Multiply the **gallons **with the 59 mi/gallon,

59 × 0.09378 = 5.53 miles

The **distance **in kilometers is 8.9.

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ich of the following materials would you choose for optimal performance in the charge storage layer of a capacitor? which of the following materials would you choose for optimal performance in the charge storage layer of a capacitor? material a: high dielectric constant low electrical resistivity material b: low dielectric constant high electrical resistivity material c: low dielectric constant low electrical resistivity material d: high dielectric constant high electrical resistivity question at position 2 2 3 points

### Answers

"Material A: high **dielectric constant** low electrical **resistivity** is best for optimal performance."

A capacitor is a device used to store electrical energy and it consists of two conductive plates separated by a dielectric material. The choice of material for the charge storage layer is important for determining the performance of the capacitor. The **dielectric constant** is a measure of a material's ability to store electrical energy and the electrical **resistivity **is a measure of a material's ability to conduct electrical **current**. For optimal performance in the charge storage layer of a **capacitor**, material A is the best choice as it has a high dielectric constant and low electrical **resistivity**. This means that the material has a high ability to store electrical energy and a low resistance to electrical **current**, making it ideal for use in a capacitor. Material B would not be an optimal choice for a charge storage layer as it has a low dielectric constant and high electrical resistivity, meaning that it is not an efficient material for storing electrical energy and has high resistance to electrical **current**.

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Eclipses BrainPop Challenge

Immersive Reader

Partial lunar eclipse

Annular eclipse

Total lunar eclipse

Penumbral lunar eclipse

2

Order the eclipses by Increasing brightness of the moon.

1

2

3

4

Show Details

Sign out

Feb 1

6:19

2

US

Please help

### Answers

Ok so imma put them in number order 3 4 1 2

an automobile manufacturer claims that its product will, starting from rest, travel 0.40 km in 9.0 s. what is the magnitude of the constant acceleration required to do this?

### Answers

The speed change over time is measured by the size of the velocity vector along the path. The centripetal **force **as it circles the instant radius of curvature is the size of the acceleration vectors normal to the path (t).

What are magnitude and its definition?

Formulas for a vector's magnitude Magnitude Formula for just a **Vector **with the Origin as the End Point. Magnitude **Formula **for just a Vector when (x1, y1) and (x2, y2) are the starting and ending points | v | = (x 2 + x 1) 2 + (y 2 + y 1) 2.

What is the magnitude?

In order to create highly rough comparisons, orders in magnitude are typically used. It is primarily used when **notating **scientific data. One is roughly 10 times greater than the other if two integers are separated through one order of magnitude. They differ by the a **factor **of around 100 if they are separated over two orders of magnitude.

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can the average person tell that a 2002-hz sound has a different frequency than a 1999-hz sound without playing them simultaneously?

### Answers

Since the percent difference between these **frequencies **is only 0.15%—less than the limit of 0.3%—it wouldn't be able to differentiate among them.

**Who defines frequency?**

the meaning of frequency 1: the regular **occurrence **of something the frequency of car accidents The amount of times the same series of values is repeated by a periodic function throughout the course of a unit fluctuation of the variable B: A set of data's number, **percentage**, or percent of things in a specific category

**What are the frequency's bounds?**

Frequency. In fact, it seems **unlikely **that there are any lower or higher restrictions to frequency, other from those that apply to... Its frequency is 2 every second if the period, or **timeframe**, needed to complete one cycles or oscillation is 1/2 second; it is 100 per hour if the duration is 1/100 of an hour.

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the moon has no sustained atmosphere. what advantages would you have if you built an observatory on the lunar surface? (select all that apply.)

### Answers

The **advantages** includes Reduced light pollution from Earth's atmosphere, lack of **atmospheric** **turbulence** for clearer observations, access to different astronomical phenomena and celestial objects Protection from **solar** **radiation** and cosmic rays and extended periods of darkness for uninterrupted observations. All options are correct.

There would be many benefits if an **observatory** were constructed on the lunar surface. First, less light pollution from the Earth's **atmosphere** would be present, making it easier to observe celestial objects.

Secondly, the Moon's lack of **atmospheric** **turbulence** would create stable viewing conditions, reducing distortions and enhancing image clarity.

Thirdly, having access to many **astronomical** **phenomena** and celestial objects would offer special research opportunities. Fourthly, more sensitive studies would be possible due to the lunar surface's partial shielding from solar and cosmic rays.

The prolonged darkness on the **Moon** would also allow for uninterrupted observations free from **light** **pollution**.

Thus, all **options** are correct.

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Your question seems incomplete, the probable complete question is:

the moon has no sustained atmosphere. what advantages would you have if you built an observatory on the lunar surface? (select all that apply.)

A) Reduced light pollution from Earth's atmosphere.

B) Lack of atmospheric turbulence for clearer observations.

C) Access to different astronomical phenomena and celestial objects.

D) Protection from solar radiation and cosmic rays.

E) Extended periods of darkness for uninterrupted observations.

the period of a pendulum is the time it takes to swing back and forth once (i.e. make a full cycle.) if the only dimensional quantities that the period depends on are the acceleration due to gravity, g, and the length of the pendulum, l, what combination of g and l must the period be proportional to?

### Answers

The period of a **pendulum **is proportional to the square root of the length of the pendulum divided by the acceleration due to **gravity**, i.e. T ∝ √(l/g).

Gravity is a force of **attraction** between two bodies in the universe. It is what keeps planets in orbit around **stars **and what gives us the feeling of being pulled towards the ground. The strength of gravity is determined by the mass of the **objects **and the distance between them. The extra huge an item is, the stronger its gravitational pull. The farther aside **items** are, the weaker the **force **of gravity between them.

Sir Isaac Newton first described gravity in his law of universal gravitation, stating that every **particle **in the universe attracts every other particle with a force proportional to the made of their hundreds and inversely **proportional **to the square of the distance among them. Gravity is a fundamental force of nature and plays a **crucial **role in shaping the **universe **as we know it today.

To learn more about **Gravity **visit here:

brainly.com/question/29785211

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