The ball would continue straight without any gravitational forces acting on it, and without air resistance. If you consider air resistance, then the spin of the ball may give it a curved path, and eventually the ball would stop traveling as the air resistance slows down the ball.
travel horizontally
It doesn't matter whether the object is thrown down, up, horizontally, or diagonally. Once it leaves the thrower's hand, it is accelerated downward by an amount equal to acceleration of gravity on the planet where this is all happening. On Earth, if you throw an object horizontally, it accelerates downward at the rate of 9.8 meters per second2 ... just as it would if you simply dropped it. Whether it's dropped or thrown horizontally, it hits the ground at the same time.
It depends on the surface on which the object is moving, and also any other forces - such as gravity.
If gravity wasn't here we would be thrown off the planet. Also the nanosecond you lifted up your foot even a millimeter you would keep going forever until you hit something. You cant run without gravity.
If you electrophoresed DNA vertically, you would have to account for gravity.
No, Earth's gravity would not affect Pluto. However, the suns gravity does.
Does mars' gravity affect other objects. yes it does but the gravity is 38% of the earths gravity and if doesn't affect objects then it will have no moon.
It would just fall to the floor due to gravity.
It would travel in a straight line until air resistance brought it to a standstill. It would then hover at that point - in mid-air forever. If air resistance is also removed from the scenario an even stranger thing will happen. The ball will continue in a straight line forever. But, because of the curvature of the earth, the earth's surface will drop away so that the ball will actually fly off into space. One problem with this thought experiment is that the concept of a "straight" line depends on gravity.
because of 0 gravity
If the Earth didn't have gravity, we would be floating in the air and nothing would be in its place.
The force of gravity.