How could you explain to your friend that there must be gravity in space?

Answer 1

Simply remind him of the whole basic story of how gravity operates:

-- Gravity causes a pair of equal forces ... one in each direction ... between

every two specks of mass in the universe.

-- The strength of the force depends on the product of the two masses.

It's stronger when the product of the masses is more, and weaker when

the product of the masses is less.

-- It also depends on the distance between their centers. The farther apart

their centers are, the weaker the force is.

When you are in space, you still have mass, and there are other masses at

various distances around you. So there are gravitational forces between you

and lots of other things in space.

If you're in space with somebody else, there's also a pair of gravitational forces

between the two of you. Let's say you and the other guy each have mass that

weighs 150 pounds on Earth, and you're about 6 feet (2 meters) apart in the

spaceship. The gravitational force that pulls each of you toward the other one

is about 0.00000028 ounce.

Answer 2

I suppose you mean, provide some evidence. The acceleration of the planets, and other objects (planets orbit around the Sun, continually changing the direction of their movements).

I suppose you mean, provide some evidence. The acceleration of the planets, and other objects (planets orbit around the Sun, continually changing the direction of their movements).

I suppose you mean, provide some evidence. The acceleration of the planets, and other objects (planets orbit around the Sun, continually changing the direction of their movements).

I suppose you mean, provide some evidence. The acceleration of the planets, and other objects (planets orbit around the Sun, continually changing the direction of their movements).

Answer 3

Many scientifically naive people do not believe there is gravity in space as they see astronauts floating around in their space vessels. This is not due to the absence of gravity , but the balance of gravity and the centrifugal forces around an object that they are orbiting. The state is called free fall.

Gravity is spread through space from all matter like an energy. It weakens as the square root of the distance from the object related to it by the equation

F = Gm1m2/r2,

F is the force due to gravity, between two masses (m1 and m2), which are a distance r apart; G is the gravitational constant.

The equation does not go to zero (there is no gravity) unless the masses are both zero. For there to be no gravity in space there would have to be no mass in the Universe which is contrary to the observed state of the Universe.

Answer 4

There is no way to explain to your friend that there is gravity in space. Your friend is correct because there is no gravity in space.

Answer 5

I suppose you mean, provide some evidence. The acceleration of the planets, and other objects (planets orbit around the Sun, continually changing the direction of their movements).