Andrew Haber is an astronaut in space, far away from gravitational and frictional forces. He throws a tennis ball. The ball will: A) come back to him
B) gradually come to rest
C) continue to move in a straight line with uniform velocity
D) come to rest abruptly

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

The mantle is made up of which structural zones?

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?