Some hot water that has a mass of 750 g and a temperature of 75C is poured over 1,500 g of an unknown substance that has a temperature of 15C. The temperatures of the water and the substances are both monitored. At an instant t, the water temperature is 55C and the substance temperature is 25C. Find the specific heat capacity of the substance. Use a value of 4,184 J/kg• for the water’s specific heat capacity. Assume that the water does not heat its surroundings