A ball is tossed straight upwards with a spinning motion. The ball turns 7.20 revolutions at a constant rate of 31.0 rad/s when it returns to the person’s hand. How high did the ball go?

Ingrid wrote the hypothesis below. if the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. what are the variables in her hypothesis?

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?

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec