Gravity

It acts over very large distances

The force of gravity is stronger when the masses of the objects involved are larger or when the distance between the objects is shorter. This is described by Newton's law of universal gravitation, which states that the force of gravity is proportional to the product of the masses and inversely proportional to the square of the distance between them.

Yes, gravity plays a significant role in the amount of lift generated by an airplane. Lift is the force that counters the weight of the aircraft due to gravity. The amount of lift needed to overcome gravity is directly related to the weight of the airplane.

it depends on what direction you take as the positive axis in a X,Y direction. if you say positive(X) is away from the earth then you would say gravity(g) is pulling the projectile the opposite direction from positive (X). if you say positive (X) is towards the center off the earth than you could say (g) is going with the (X) so g would end up positive.

in summary is depends on how you set up the X,Y axis compared to the problem you are solving.

As always, that's going to depend on where he is. Wherever it is, the forces

of gravity between him and another nearby mass will both be

(45 kg) x (acceleration of gravity in the vicinity of the other mass).

If the other mass is the Earth, then the acceleration of gravity is 9.8 m/s2 ,

and the force, which the student will call his 'weight', is

(45) (9.8) = 441 newtons (99.21pounds / 7stone 1.21pounds)

A conservative force is a force that depends only on the current position of an object, and not on the path taken to reach that position. Examples include gravity and spring force. The work done by a conservative force in moving an object between two points is independent of the path taken.

You can change the gravitational potential energy of an object by altering its height or the strength of the gravitational field it is in. Increasing the height or the strength of the gravitational field will increase the gravitational potential energy, while decreasing either will decrease the gravitational potential energy.

You can buy Ultimate Gravity Destroyer Attack from online marketplaces like Amazon, eBay, or specialty toy stores that sell Beyblade products. Be sure to verify the authenticity of the product before making a purchase to avoid counterfeit items.

A stomp rocket works by stamping or stomping on an air pump that forces air through a tube attached to a rocket. The air pressure propels the rocket into the air due to the build-up of force underneath it. It demonstrates the principle of Newton's third law of motion – for every action, there is an equal and opposite reaction.

Gravity force is directly proportional to the mass of an object. The greater the mass of an object, the greater the force of gravity acting on it. This relationship follows Newton's law of universal gravitation.

Simply put, the answer is: Because there's nothing to stop it.

Any time you come anywhere near Newton's laws of motion, you're continually

bumping into the idea that an object continues in constant uniform motion, with

constant speed and in a straight line, until it's acted on by an external force.

Some ways to overcome gravity include using a rocket propulsion system to generate enough thrust to escape Earth's gravity, utilizing advanced technology like electromagnetic propulsion systems, or harnessing anti-gravity technology if it becomes possible in the future.

Its important because if you didn't have gravity you'd be floating in air. Motion is important because without motion, everything you do with motion (pretty much everything) will be impossible

-- Among many other effects, gravity is the reason for the fortunate coincidence

that you and air are always in the same place.

-- Motion is an invaluable aid in the process of getting around from place to place.

You'll weigh about 90kg. Weight is the force of attraction between you and the Earth due to gravity. Mathematically, weight = GMm/r^2, where G is the gravitational constant, M is the mass of the Earth, m is your mass, and r is the distance from the center of the Earth to you. Earth has a radius of 3963 miles. When you are on the ISS, your radius from Earth's center is 4183 miles. Working out the math, objects 220 miles above Earth weigh about 90% of what they weigh on the surface.

That said, you and the ISS are in constant free-fall toward Earth with zero relative motion between the two of you. The ISS isn't pushing against you like the surface of the Earth does, so you feel a sensation of weightlessness, despite having weight.

Buoyancy and gravity are related to the particle theory of matter through the concept of density. According to the particle theory, all matter is made up of tiny particles that are attracted to each other due to gravitational force. Buoyancy occurs when an object is immersed in a fluid and experiences an upward force equal to the weight of the fluid displaced, which is influenced by the density of the object and the fluid. The interaction of gravity and buoyancy helps explain why objects of different densities behave differently when placed in fluids.

In a practical sense, gravity can be greater than friction in certain situations, such as when an object is sliding down a slope. However, in terms of mathematical comparison, gravity is a force of attraction between two objects with mass, while friction is a force that opposes motion. These two forces operate independently and cannot be directly compared in a quantitative way.

The center of gravity of a triangular lamina lies at the point of intersection of the medians of the triangle, which is also known as the centroid. It is located one-third of the distance from each vertex to the midpoint of the opposite side along the median.

No, it is not necessarily true that larger things have smaller volume compared to smaller things. The volume of an object is determined by its dimensions and can vary depending on the shape and size of the object. Larger things can have larger volumes than smaller things if their dimensions are proportionally larger.

You may defy it, but gravity will always win. Bwa-ha-ha-ha.

But seriously folks . . . "Defy" is a very dramatic and meaningless word. There's

no way to turn gravity off, or shield yourself from it. But fortunately, the net

effective force on anything is the vector sum of all the individual forces acting

on it. So if you can set up other forces on an object in addition to the gravity

that's always there, you can make the object behave as if the net force on it

were zero, or horizontal, or slanty, or straight down, or even straight up and

completely opposite to gravity. That's exactly what you do every time you use

your leg muscles to exert forces on your body in addition to gravity, and walk

up the stairs.

When you sit on a chair, you are actually being supported by the forces between the atoms in your body and the atoms in the chair. So, you are not directly touching the chair, but rather experiencing a force that keeps you suspended above it due to electromagnetic repulsion.

There's no evidence whatsoever for negative mass or a repulsive gravitational force.

At one time it was theorized that "anti-matter" would have negative physical properties as well (including being repelled by gravity), but it turns out that's looking less and less likely and as far as we can tell it's affected by gravity the same way that "normal" matter is.

During the half-arc when the pendulum bob is falling toward the center, gravity is

doing work on it ... exerting a force which moves through a distance ... and adding

to its kinetic energy.

During the other half, when the bob is moving up from the center, it's using its

own kinetic energy to work against gravity. That moves it to a higher elevation,

adding to its gravitational potential energy, and placing it in a position from which

it can fall again.

The gravity on Enceladus, a moon of Saturn, is about 0.113 m/s², which is much weaker compared to Earth's gravity. This low gravity is due to Enceladus having a smaller mass and size than Earth.