The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance
81 cm apart on the same axle. From the
angular displacement 18 ◦
of the two bullet
holes in the disks and the rotational speed
603 rev/min of the disks, we can determine
the speed of the bullet.
What is the speed of the bullet? Answer in units of m/s.

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

Argon, neon, and xenon are examples of

What is the single most important equation in all of physics?