Gravity

Isaac Newton is credited with discovering gravity. The law of gravity, also known as Newton's law of universal gravitation, states that every mass attracts every other mass with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.

Gravitational force decreases as the square of distance. In this case, the force

has decreased by 200 N / 50 N = 4. Therefore, the distance must be sqrt (4) = 2

times what it was. It was R before, then it must be 2R now.

When an object is moved up, against the force of gravity, its potential energy increases. Since it requires some force to move it up, some other form of energy is converted into potential energy. When the object moves down (for example, when it falls down), this potential energy is again converted into some other type of energy. For more information, do some reading on the topic of "potential energy".

The specific gravity of urine varies from one individual to another. And whatever

it happens to be, it doesn't depend on the volume of the sample.

The value of gravity can be greater than 9.8 m/s^2 on celestial bodies with larger masses than Earth, such as Jupiter or the Sun. Additionally, gravity can vary slightly depending on the altitude and location on Earth due to factors like topography and density variances in the Earth's crust.

The value of gravity does not change greatly within a city. Gravity is a constant force that is generally consistent across different areas unless influenced by significant geological factors. Variations in elevation or density of materials within a city may cause slight differences, but these are typically not noticeable in everyday situations.

This is known as orbital motion, where a satellite's forward velocity allows it to maintain its orbit while being continuously pulled towards the center of the Earth by gravity. This delicate balance between inertia and gravity keeps the satellite in a stable path around the planet.

Acceleration due to gravity is the rate at which an object speeds up while falling towards the Earth. This acceleration is approximately 9.81 m/s^2 near the Earth's surface. Gravity causes objects to accelerate towards the center of the Earth, leading to phenomena like free fall and weightlessness.

Acceleration has exactly the same effect as gravity. A way to get continuous acceleration in outer space without continuously spending energy is through rotation - for example, a large rotating "wheel", as shown in the movie "2001 - a Space Odissey", among others.

No, weight is a measure of the force of gravity acting on an object's mass. The weight of an object can change with location due to differences in gravitational pull. Mass, on the other hand, is a measure of the amount of matter in an object and is constant regardless of location.

Mercury does not have what we would call an atmosphere. It is very, very thin , a collection of a few atoms per cubic meter, some being ionized from the surface. It is less than a trillionth of Earth's.

Electromagnetic gravity is a theoretical concept that attempts to unify the forces of electromagnetism and gravity into a single theoretical framework. It posits that gravity could emerge from the interactions of electromagnetic fields in a particular way, although this idea has not been conclusively proven or widely accepted in the scientific community.

Earth is gravitationally attracted to the Sun, which is the primary force keeping Earth in orbit around it. The gravitational pull between the Earth and the Sun is what keeps the Earth in its elliptical path around the Sun.

The purpose and function of the word "rewarded" here are very unclear,

as is the thrust of the question.

Uniform circular motion IS uniformly accelerated motion, since the direction

of the motion is constantly changing.

When an elevator starts or stops, there is a change in acceleration which causes a shift in forces acting on your body. This sudden change can make you feel a jerk as your body adjusts to the new motion. It's similar to the sensation you feel when a car accelerates or decelerates quickly.

A nebula IS a cloud of dust and gas loosely held together by gravity.

In "Pine Quest" on Gravity Falls, the goal is to complete various quests and puzzles to progress through the game. To win, you need to explore the different locations, interact with characters, and solve challenges along the way. Keep playing and advancing in the game to reach the end and complete the final quest.

A spring scale or a dynamometer is typically used to measure the force or pull of gravity acting on an object.

Buoyancy. This is the force exerted by a fluid on an object. It is due to pressure difference in the fluid (pressure increases a you get deeper). Thus the force always acts in the opposite direction to gravity (upward).

The buoyancy force is equal to the WEIGHT of the fluid displaced by the object. Remember that weight is the FORCE due to gravity, and so buoyant force can vary if gravity varies.

The formula for calculating buoyant force is:

F = ρgV

where ρ is density of fluid and V is volume of fluid displaced.

Notice that ρ (density) times V (volume) is mass, and that mass times g (acceleration of gravity) is weight.

Also for your consideration...

An object will rise if buoyant force exceeds weight, like a balloon full of helium (gases like air are also fluids). If weight exceeds buoyancy, the object will sink, like a stone in water.

Weight can also be calculated like buoyancy:

W = ρgV

ρ is density of the object and V is volume of object.

So determining whether an object in a fluid will sink or rise can involve comparing density of fluid with average (bulk) density of object.

If the object is a solid object with known density you can detarmine if object will float our not. If density of object is greater than density of fluid it will sink, and vice versa.

False. The presence of gravity does not directly affect the amount of gas in an atmosphere. Factors such as temperature, pressure, and chemical reactions play a larger role in determining the composition and amount of gas in a given atmosphere.

A pendulum can swing through any angle you want. But because of the

mathematical approximations you make when you analyze the motion of

the pendulum, your predictions are only accurate for a pendulum with a

small arc.

The force of gravity is what pulls liquids towards the ground. Gravity is the natural force that attracts objects with mass towards each other, which is why liquids flow downward and are pulled towards the Earth's center.

If there's any difference, it's the result of air. If you pump all the air out of a

long tube and then drop things in it, they fall with the same acceleration, and

they hit the bottom at the same time with the same velocity. Doesn't matter

if you use a feather, a sheet of paper, a leaf from a maple tree, or a rock.

The acceleration due to gravity is a property of the Earth's mass and radius,

and of gravity itself, and doesn't depend on which way something is moving.

-- The acceleration produced by a force is always in the direction of the force,

and the forces of gravity act along the line between the centers of two objects.

-- One force of gravity acts on the body that's up in the air, pulling it ... and

therefore accelerating it ... toward the center of the Earth, with acceleration

equal to the body's weight/the body's mass = 9.8 meters per second2.

-- The other force of gravity acts on the Earth, pulling it ... and therefore

accelerating it ... toward the center of the body that's up in the air, with

acceleration equal to Earth's weight/Earth's mass. In order to calculate that

number, you have to know the Earth's weight. It's the same as the weight

of the body that's up in the air, since the forces of gravity are equal in both

directions. So once you know the weight of the body on Earth, you know the

weight of the Earth on the body, and you can calculate the Earth's acceleration

when they're falling toward each other.