A 9.4 kg ball is thrown at an angle of 48.2° above the horizontal off of a building such that its initial potential energy is 290 J, and the initial kinetic energy is 185 J.

Once the ball is flying in its arc, what will be the potential energy of the ball when the kinetic energy is 57.2 J?

How to calculate voltage drop in a series circuit

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.