The speed of light is frequency multiplied by wavelength, the same as for other waves. suppose you make light with a frequency of 600 THz. A) What is the wavelength of this light?
B) Describe what color the light would appear to your eye.

You will have to use scientific notation to solve this problem with your calculator. If necessary, ask your teacher or a friend for help.

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.