Light from an incandescent source transmits through a polarizer whose transmission axis makes an angle of 37.0° with respect to the vertical; i. e., the 37.0 − degree mark on the polarizer lines up with the index mark on the component carrier. The light intensity after passing through the polarizer is 71.3 ux. (a) At what angle would you need to set a second polarizer in order to have no light transmitted? (b) At what angle would you need to set the second polarizer to obtain a light intensity of 23.4 ux? Assume the polarizers are ideal.

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

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud