A1.00x104 g piece of metal at 50.0°c is placed in 1000. g of water at 10.0°c. the metal and water come to the same temperature of 31.4 °c. what is the specific heat of the metal? find the specific heat of the pure metal in both cal/(g·°c) and j/(g·°c).

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?