Correct unit of speed

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Ways that industry and agriculture use physical properties to separate substances

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?