PROJECTILE MOTION PROBLEM:If you drop an object from a height of 1.5m, it will hit the ground in 0.55 seconds. If a baseball pitcher throws a baseball horizontally with an initial speed of 35 m/s from the same height: 1. How long will the ball take to hit the ground? 2. Where will the baseball land relative to the feet of the pitcher?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ

Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n