Into 237.3ml of water initially at 47°c a chunk of copper from an oven at 133.5°c is dropped. the water/copper combination comes to a final temperature of 74.68°c. (a) what is the mass of the copper block? now a mystery substance of mass 172.6 g is taken from the same oven and dropped into the same water+copper, but the temperature only rises to a final temperature of 89.3°c. (b) what is the (mass) specific heat of the mystery substance? (a) g answer part (a) cal/g °c