The strength of a gravitational force between two objects depends on OA. mass and distance.
OB. distance and volume.
OC. size and shape.
OD. mass and volume.

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: