We all know that the Earth cycles through a regular pattern of days and nights.
What causes this pattern?

A) The tilt of the Earth on its axis.
B) The sun turns on, and then goes out.
C) The rotation of the Earth on its axis.
Eliminate
D) The rotation of the sun around the earth.

Assuming weightless pulleys and 100% efficiency, what is the minimum input force required to lift a 120 n weight using a single fixed pulley?

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

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