One elevator lifts a mass a given height in 10 seconds. A second elevator does the same work in 5 seconds. Compared with the power developed by the first elevator, the power developed by the second elevator is-

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

How do you tell if someone actually cares about you? and just say they do?

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.