The projectile launcher will give the object an initial horizontal speed of 7.7 m/s. While the other object will be dropped with no initial speed. The objects are initially 171 cm above the ground and separated by 142 cm. What will be the difference in the landing locations of the two objects? (Help!!)

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

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.