In empty space probably means, there is no force on the ball.
(This assumption is not quite correct since there is still the force of gravity between the ball and the astronaut, but this force is very very small and can be neglected.)
Assuming there is no force on the ball, Newtown's 1st law says: When viewed in an internal frame of reference, an object either remains at rest or continues to move at a constant velocity, unless acted upon by a force.
This means:
If there is no force on the ball, there will be no acceleration on the ball either.
If the acceleration is zero, the velocity of the ball never changes.
The centripetal force needed to keep earth in orbit is gravity.
It increases
Explanation:
A circuit's resistance increases as more resistors are added to it in series.
Series connection of circuit provides an additive increase in the resistance offered by the overall circuit.
A resistor is a device in a circuit that impedes the flow of electric current. It simply uses electric current.
Examples are bulbs, radio, television.
The more of these devices connected one to another in series, the more the resistance increases.
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The adds pressure to the tire which would cause it to burst
