We can determine the velocity of a wave when given the frequency and the a. amplitude b. equilibrium c. trough d. wavelength

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

The plum pudding model of the atom state that ?

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?