Question

please show all work :
194 grams of lead shot at a temperature of 63.7 C is dropped into 96 grams of water at 26.1 C. What is the equilibrium temperature of this mixture in C ?

Suppose that a well-insulated room has a glass window that is {h} m high and 2.4 m wide. What is the rate of heat flow per second into the window from the environment outside if the temperature of the room is kept at 73.0^o F and the outside temperature is 95.6^o F? Assume that the glass is 0.63 cm thick, and express your answer in W.

Answer 1