A turntable of mass 100 g and radius of 20 cm is spinning freely at a constant angular speed of 33:3 rpm. A frictional force of 0:01 N is applied tangentially to its edge so that it eventually comes to rest. An ant of mass 0:1 mg is on the turntable a distance of 10 cm from the center of rotation. Find (in standard metric units, i. e., mks)

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

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

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points