The combined mass of a motorcycle and the rider is 275 kg. The cycle is slowing at a constant rate of 4.5 m/s2 . What is the magnitude of the net force on the bike?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?