# What is unknown gravity?

## What is unknown gravity?

However, if we are to be honest, we do not know what gravity “is” in any fundamental way – we only know how it behaves. Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Furthermore, he deduced that gravity forces exist between all objects.

### What is the opposite force for gravity?

As normal force is the opposite of the gravitational force, we can see that .

#### What is anti gravity formula?

As such, gravity is not a force, but a change in the local geometry of space-time. Hence, if you have mass or energy (the equivalent of matter, according to the formula E=mc2), then you have the space-time curvature.

Is there anything that doesn’t have gravity?

If the spacecraft was not moving quickly enough, it would fall prey to the effects of earth’s gravitational field and fall to the earth. There is no such thing as zero gravity in space.

Why is gravity so weird?

Why is gravity so weird? No force is more familiar than gravity — it’s what keeps our feet on the ground, after all. “It could be that gravity is as strong as these other forces but that it gets rapidly diluted by spilling out into these other invisible dimensions,” says Whiteson.

## Can gravity be negated?

In the 20th century, Newton’s model was replaced by general relativity where gravity is not a force but the result of the geometry of spacetime. Under general relativity, anti-gravity is impossible except under contrived circumstances.

### Is spring force equal to gravity?

We know that the spring force is equal and opposite to the gravitational force because the mass would otherwise be accelerated by the net force. Therefore, like gravity, a displaced spring can be regarded as a definition of an applied force.

#### Can the force of gravity be 0?

Definition: Zero Gravity or Zero-G can simply be defined as the state or condition of weightlessness. It also refers to the state in which the net or an apparent effect of gravity (i.e. the gravitational force) is zero.

Which country has no gravity?

Well, there is one on the Faroe Islands, where the water seems to move upward, i.e., defying the law of gravity. In fact, the waterfall, rather than defying gravity as the name suggests, goes upside down when strong gusts of wind blows against the flow of the waterfall.

Which is the correct formula for specific gravity?

The formula for specific gravity, given that the reference substance is water, is the density of the object divided by the density of the water. Here, we use the Greek symbol Rho to indicate density.

## How to calculate the gravitational force of a body?

Gravity Formula 1 G is a constant equal to 6.67 × 10 -11 N-m 2 /kg 2 2 m 1 is the mass of the body 1 3 m 2 is the mass of body 2 4 r is the radius or distance between the two bodies More

### Which is the best example of the force of gravity?

Some examples of the force of gravity include: 1 The force that holds the gases in the sun. 2 The force that causes a ball you throw in the air to come down again. 3 The force that causes a car to coast downhill even when you aren’t stepping on the gas. 4 The force that causes a glass you drop to fall to the floor.

#### How is gravity related to the universal law of gravitation?

Gravity also termed as gravitation, is a force that occurs among all material objects in the universe. For any two objects or units having non-zero mass, the force of gravity has a tendency to attract them toward each other. The Universal Law of Gravitation says that: All mass applies an attractive force on all other mass.