Afirefighter with a weight of 718 n slides down a vertical pole with an acceleration of 3.22 m/s2, directed downward. (a) what are the magnitude and direction of the vertical force (use up as the positive direction) exerted by the pole on the firefighter? 1 n (b) what are the magnitude and direction of the vertical force (use up as the positive direction) exerted by the firefighter on the pole?

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?