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Gravity

One of the four fundamental interactions, gravity is responsible for the fact that any objects with mass attract one another. According to general relativity, it is a space time curvature, but according to quantum mechanics it is the result of exchanges of virtual gravitons.

4,784 Questions

What is the gravitational force acting upon an astronaut when lifting off?

The actual gravitational force on the astronaut ... the force attracting him to the

mass of the earth ... is exactly the same as it always is, and is equal to his weight.

But ... he feels as if there's more force on him, as if his weight has increased.

That's because he's accelerating aboard the launch vehicle, and there's no way

to tell the difference between the force of gravity and the force of acceleration.

When the aeroplane fly in the air y dont the gravitation does not take place?

Air planes are affected by gravity too, just like everything else. What makes them fly is that the upward force of the wings is bigger than the downward force of gravity.

Why are you attracted to the earth?

Attraction to the Earth is caused by the force of gravity.

How many grams of 1.28 Specific gravity substance are in a gallon?

1 uk gallon = 4.546 litres = 4.546 kg water * 1.28 * 1 000 = 5 818.88 grams

1 us gallon = 3.785 litres = 3.785 kg water * 1.28 * 1 000 = 4 844.80 grams

How does gravity affect birds?

Like all other animals, in the same way, a constant pull towards the earth (AKA down)

So, birds don't get special treatment in the ways of physics.

Which one is better galaxy Pegasus or gravity Perseus?

It ultimately depends on personal preference and playing style. Galaxy Pegasus is known for its speed and attack power, while Gravity Perseus is known for its defense and stamina. Consider your strengths and preferences as a beyblader when choosing between the two.

Does the moon give off gravity to the earth?

Yes, the moon does exert a gravitational pull on Earth, which causes phenomena like tides. The gravitational force between two objects is proportional to their masses and inversely proportional to the square of the distance between them.

Is it possible to shoot a bullet into space from the ground on earth?

No, it is not possible to shoot a bullet into space from the ground on Earth. Bullets fired from firearms do not have enough velocity to escape Earth's gravity and reach space. Additionally, there are aerodynamic forces, air resistance, and other factors that would prevent a bullet from traveling to space.

How did the moon get sucked into the earths gravity?

It did not get pulled in by Earth's gravity. The moon most likely formed when a small planet collided with Earth early in its history, producing a ring of debris around Earth which coalesced to form the moon.

How does mass tell space to curve and how does space tell mass to move in other words what is physically causing the effect of gravity?

If space curves then it is not empty space. Curvature of space is a visual analog to describe the action not a physical reality. English majors write about beams of pure energy. Since energy is a property of matter what are they writing about?

It has been demonstrated by hanging two large masses in proximity they move slightly toward each other. That infers gravity is in some respect like magnetism in that it attracts but unlike magnetism all masses attract, there is no pole or polarity. Basically we can measure it but only speculate about it. I think if we understood it we could manipulate it and so far we can't. The experiment with the two masses does have

polarity in fact it has a great number of magnetic poles in the countless trillions of electrons in each mass. Every electron in that mass is a magnet with a north and south pole. The reason the effect is not the same to the casual eye is that the electrons (of atoms) are not lined up as they are in a magnet but rather face in random directions. Theses individual electron magnets are very, very weak but when in large numbers they have an over all attractive force because the repelling force of like poles is only a momentary factor until the fields turn away from each other but unlike poles stay connected unless separated by a stronger outside force.

Will different weight balls hit the ground at the same time?

In the absence of air resistance, different weight balls will hit the ground at the same time when dropped from the same height. This is because all objects fall at the same rate due to gravity, regardless of their mass.

Will a 10 pound bowling ball hit the ground the same time as a 16 pound ball?

Yes, the two bowling balls will hit the ground at the same time. The acceleration due to gravity on Earth is approximately 9.8 m/s2 [downward] and this applies to all objects; it does not change depending on the mass of an object. As a result, any two objects dropped from the same height will hit the ground at the same time (assuming the aerodynamic forces acting on the objects are negligible).

Note that the force of gravity varies slightly on Earth. For example, at the poles, the force of gravity is slightly greater than at the equator due to the fact that the poles are closer to the center of the Earth.

Does mars have 62 times less gravity than earth?

No. The gravity on Mars is about 38% that on Earth. So Mars has about 62 percent less gravity.

Is gravity the same everywhere in the world?

Yes, gravity is the same everywhere on Earth in terms of acceleration, which is approximately 9.81 m/s^2. However, variations in gravity can occur due to factors like altitude, latitude, and local geology.

What would happen to the force of gravity between 2 objects if their masses remained constant but their distance between them decreased?

The force of gravity between two objects will increase if their distances decrease. The force of gravity or proportional to the objects' masses, and inversely proportional to the square of the distance between them.

How do free fall parachutists control their speed?

Free fall parachutists control their speed by adjusting their body position. By angling their body either face down or face up, they can increase or decrease their surface area, which affects their rate of descent. They may also use their parachute's steering toggles to control their direction and speed.

What is the force that makes things fall to the earth?

The force that makes things fall to Earth is called gravity. Gravity is a natural phenomenon by which all objects with mass or energy are brought toward one another. The strength of gravity depends on the mass of the objects and the distance between them.

Is it true that a satellite is always being pulled by gravity?

Yes it is true. There is no way to turn gravity off or shield anything from it,

so everything is always being pulled toward everything else by gravity.

Does a pile of soil that sits on the ground exert force or not?

Yes, a pile of soil sitting on the ground exerts force on the ground beneath it. The soil has mass, and gravity pulls it down on the whatever is under it. A red ant standing atop the pile of soil exerts an extra force on it, to continue the figure.

Why is it difficult to reach into an aquarium and pick up something on the bottom?

Water has a greater density than air, so it takes more force to shove your hand to the bottom.

How do you ride the wall of death?

get on the grim reapers syth and go into the underworld on murderous jailer lane there should be a big black wall go up to the wall and cut your heart and eat it and you will be immortal

What is the maximum height that water you can suck water up a pipe?

Depends on atmospheric pressure. At 1 ATM this is 10.3m (33 feet)

How can you weight the gravity of sin?

You can not weigh the gravity of sin. Sin is sin. The only way to get rid of it is through Jesus Christ. He will take the gravity of sin away for you.