## What is the inverse square law for intensity?

Specifically, an inverse square law says that **intensity equals the inverse of the square of the distance from the source**. For example, the radiation exposure from a point source (with no shielding) gets smaller the farther away it is. If the source is 2x as far away, it’s 1/4 as much exposure.

## What is inverse variation explain?

Inverse variation is **the relationship between two variables, such that if the value of one variable increases then the value of the other variable decreases**.

## What is inversely related to intensity?

This principle is known as the inverse square law: intensity is inversely proportional to **the square of the distance from the source** (I ∝ 1/d^{2}).

## What is inverse square variation?

**When two quantities vary inversely, their products are always equal to a constant, which we can call k**. If the square of x and the cube of y vary inversely, this means that the product of the square of x and the cube of y will equal k. We can represent the square of x as x^{2} and the cube of y as y^{3}.

## How are wavelength and intensity related?

The intensity (i.e. photon energy or field strength) is related to the characteristics of the wave by Planck’s constant. i.e. **the photon energy is inversely proportional to the wavelength**. From these equations we now know that: As the frequency increases, so does the energy of the wave (directly proportional)

## Why is F inversely proportional to r2?

This is because **the force acts uniformly in all directions from the point source and conserves the energy over the entire surface surrounding the point object**. Since the surface is a sphere the area of the sphere is given as 4πr^{2}.

## What is r2 in gravitational force?

Newton’s Law of Gravitation

The masses exert equal and opposite forces on one another. Since the gravitational field g = F/m, in general g has a magnitude of GM/r^{2} and points toward M. This gives us the value of **9.8 m/s ^{2}** we’ve been using all along: M = mass of the Earth = 5.98 x 10

^{24}kg.

## What is r squared in gravitational force?

F = GMm/r^2 (gravitational force = **G * mass of primary * mass of secondary / orbital radius squared**) a = GM/r^2 (gravitational acceleration caused by an object = G * mass of that object / orbital radius squared) When a primary object attracts a secondary object, the force between them follows an inverse square law with …

## What is R 2 gravitational force?

g = GM/r^{2}, Where M is the mass of the Earth, r **the radius of the Earth** (or distance between the center of the Earth and you, standing on its surface), and G is the gravitational constant. G (without the subscripts) is the gravitational constant, and c is the speed of light.

## Why is G GM r2?

The above acceleration is **due to the gravitational pull of earth** so we call it acceleration due to gravity, it does not depend upon the test mass. Its value near the surface of the earth is 9.8 ms^{–}^{2}. Therefore, the acceleration due to gravity (g) is given by = GM/r^{2}.

## How do you solve F f1 in d2?

https://youtu.be/

*This equation can be used to solve numerical. Problem related with any two bodies of the universe. And we can calculate gravitational force between them.*

## What is G in G GM R?

g=**acceleration due to gravity**, G=Gravitational constant, M=Mass of the Earth, and R=radius of the Earth.

## Can a body have mass but no weight?

**Yes, a body can have a mass but no weight**. This is because the weight of the body varies from place to place with the value of acceleration due to gravity.

## Can we measure gravity waves?

**A gravitational-wave detector (used in a gravitational-wave observatory) is any device designed to measure tiny distortions of spacetime called gravitational waves**. Since the 1960s, various kinds of gravitational-wave detectors have been built and constantly improved.

## How do you find the gravity of a planet?

**F _{grav} = m*g**

where d represents the distance from the center of the object to the center of the earth. In the first equation above, g is referred to as the acceleration of gravity. Its value is 9.8 m/s

^{2}on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s

^{2}.

## How much would a person whose mass is 60 kg weight on the moon?

98 Newtons

For example, on Earth, where the acceleration due to gravity is 9.8 m/s^{2}, a person who has 60 kg of mass weighs 588 Newtons (132 lbs). Whereas on the moon, where the acceleration due to gravity is about 1/6 of what it is on Earth, that same 60 kg person weighs just 98 Newtons (~**22 lbs)**.

## What would happen if the value of g was twice as large?

**The gravitational force (F) between any two objects would become double**, also the value of acceleration due to gravity (g) would become double.

## What is the 9.8 m s2?

**The magnitude of the acceleration due to gravity**, denoted with a lower case g, is 9.8 m/s2. This means that every second an object is in free fall, gravity will cause the velocity of the object to increase 9.8 m/s. So, after one second, the object is traveling at 9.8 m/s.

## How heavy is 50kg on the moon?

A mass of 50⋅kg has a WEIGHT of 50⋅kg×9.81⋅N⋅kg−1=490.5⋅N on the earth, but a weight of 50⋅kg×1.622⋅N⋅kg−1=**81.1⋅N** on the moon……

## Why is acceleration 9.8 for gravity?

9.8 m/s^{2} is the acceleration **due to gravity close to earth’s surface, when no other forces are acting on the object**.

## Why is gravity measured in m2?

The gravity of Earth, which is denoted by g, **refers to the acceleration that the Earth imparts to objects on or near its surface**. In SI units this acceleration is measured in metres per second squared (in symbols, m/s2) or equivalently in newtons per kilogram (N/kg).

## Is m/s s the same as m s 2?

As acceleration, the unit is interpreted physically as change in velocity or speed per time interval, i.e. metre per second per second and is treated as a vector quantity.

Metre per second squared.

Meter per second squared | |
---|---|

Symbol | ms^{2} |

## Why is acceleration m s2?

**Because acceleration is velocity in m/s divided by time in s**, the SI units for acceleration are m/s2, meters per second squared or meters per second per second, which literally means by how many meters per second the velocity changes every second.

## Is velocity m s or m s2?

Average Acceleration

Because acceleration is velocity in m/s divided by time in s, the SI units for acceleration are m/s^{2}, **meters per second squared** or meters per second per second, which literally means by how many meters per second the velocity changes every second.

## How do you convert m s2 to MS?

The answer is 1. We assume you are converting between metre/square second and metre/square second. You can view more details on each measurement unit: meters per square second or m/s^2 The SI derived unit for acceleration is the meter/square second. **1 meter/square second is equal to 1 m/s^2**.