2. Two metal samples are heated to 150C. Sample A (mass = 200 g) is placed into an insulated foam beaker that also contains water at an initial temperature of 20 C. After sample A and the water come to thermal equilibrium, the water and sample) temperature is 45 C. The specific heat of sample A is known to be 502 J/kg.K. Assume the specific heat of water is 4186J/kg.K. Assume you can ignore any heat absorbed by the thermometer, air, or beaker, and assume that no heat escapes from the foam beaker or its lid during this experiment. (a) What is the mass of the water in the foam beaker? Sample B (mass = 177 g) is then added to the beaker that already contains water and sample A. The water mass can be assumed to be identical to what was present for part (a). After coming to thermal equilibrium with the water and sample A, the addition of sample B results in another increase of temperature of 25 C (up to 70C). (b) What is the specific heat of sample B? Metal Samples: A B A A B ED UT Tot -20C +45C init Til 70c Initial water temperature Metal samples at 150 C Sample A put in beaker with the water Sample B put in beaker with the water and A