A 0.45 Caliber bullet (m = 0.162 kg) leaving the muzzle of a gun at 860 m/s.
What is the momentum?
O
O
O
140 kg*m/s
140 kg
62 kg*m/s
387 kg*m/s

What is the function of the commutator in a dc motor? a. to spin the magnet b. to change direct current into alternating current c. to change alternating current into direct current d. to spin the wire coil

50 g of ice at 0°c is dropped in a beaker containing 100 g of water at 0°c. what will be the contents of the beaker after 5 hours? assume that the room temperature is 0°c.

Abearing is designed to a reduce friction b. support a load c. guide moving parts such as wheels, shafts and pivots d. all of the above