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After sunset on a hot summer day, the bricks in the wall of a building feel warm, but the glass windows do not. Why? The bricks

After sunset on a hot summer day, the bricks in the wall of a building feel warm, but the glass windows do not. Why? The bricks have a higher heat capacity. The glass has a higher heat capacity. Bricks are good at conducting heat. The glass is transparent and the brick is not.

After sunset on a hot summer day, the bricks in the wall of a building feel warm, but the glass windows do not. Why? The bricks have a higher heat capacity. The glass has a higher heat capacity. Bricks are good at conducting heat. The glass is transparent and the brick is not.

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Dr. Terror has developed a new alloy called Ultranomlum. He is test a bar that is 1.12 m long and has a mass of 359 g. Using a carbon- dioxide infrared laser, he carefully heats the bar from 20.5°C to 284°C. Answer the two parts below, using three sig figs

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Thermal Expansion Solutions

Dr. Terror has developed a new alloy called Ultranomlum. He is test a bar that is 1.12 m long and has a mass of 359 g. Using a carbon- dioxide infrared laser, he carefully heats the bar from 20.5°C to 284°C. Answer the two parts below, using three sig figs. w Part A - If the bar absorbs 8.46 x 10' J of energy during the temperature change, what is the specific heat capacity, cu, of the Ultranomium? Part B - He notices that at this new temperature, the bar's length has increased by 1.70 x 10-2 m. What is the coefficient ofineare expansion, av, for this new alloy? vo AE ? AU = K-1

14. Which of the following statements is true concerning a change of phase? a. All heat goes into the phase change while more than one phase is present. b. If water is boiling, then it is at 100°C. c. It is possible to change directly from a solid to a gas

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14. Which of the following statements is true concerning a change of phase? a. All heat goes into the phase change while more than one phase is present. b. If water is boiling, then it is at 100°C. c. It is possible to change directly from a solid to a gas without passing through the liquid phase. d. It takes more heat to vaporize a gram of water than it does to melt a gram of ice. e. There are more than 4 phases of matter.

a A uniform heavy rod of length L and area of cross-section area A is hanging from a fixed support. If Young's modulus of the material of the rod is Y , then the increase in the length of the rod is (p is a density of the material of the rod):

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Thermal Expansion Solutions

a A uniform heavy rod of length L and area of cross-section area A is hanging from a fixed support. If Young's modulus of the material of the rod is Y , then the increase in the length of the rod is (p is a density of the material of the rod):