which of the laborers apply the greatest work in bringing up the hollow blocks up to the sixth floor? why do you say so?

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.

Sound is a disturbance that travels through a medium as a

Coal contains energy. a. light b. kinetic c. chemical d. mechanical