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MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A particular part in a car engine expands as the engine warms up to operating temperature, but the amount of expansion depends on the metal from which the part is made. Rank the following metals from largest to smallest in terms of the amount that the length of the part would change for a certain temperature rise. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.) A. Brass (c = 19 x 10-6/C) B. Iron (a = 12 x 10-6/C) C. Lead (a = 29 x 10-6/ c) Need Help? Read it 2. [-/12.5 Points] DETAILS OBINPHYS8 5.CQ.020. MY NOTES ASK YOUR TEACHER Three different types of windows are being considered for a building project, and all windows are made with glass of the same type and thickness. Type 1 is made with a single sheet of glass. Type 2 is made with two separate panes of glass separated by a space with most of the air removed. Type 3 is made with two panes of glass with air at normal atmospheric pressure between them. Rank the different window types from the one that insulates the most to the one that insulates the least. O1> 2>3 O1> 2 =3 (1> 3 >2 (2> 1>3 O2> 3> 1 O 2 = 3>1 (3> 2>1 Need Help? Read It 3. [-/12.5 Points] DETAILS OBINPHYS8 5.CQ.022. MY NOTES ASK YOUR TEACHER A submerged heater is used to keep an aquarium above room temperature. Where should the heater be placed so that it is most effective? The heater will be equally effective if placed at the top or bottom. The heater should be placed near the top of the aquarium. The heater should be placed near the bottom of the aquarium. Need Help? Read It 4. [-/12.5 Points] DETAILS OBINPHYS8 5.Q.022. MY NOTES ASK YOUR TEACHER A submerged heater is used in an aquarium to keep the water above room temperature. Should it be placed near the surface of the water or near the bottom to be most effective? Explain. O The heater should be placed near the surface so that there will be a natural circulation due to convection. The heater should be placed near the bottom so that there will be a natural circulation due to convection. The heater should be placed near the surface so that there will be a natural circulation due to conduction. The heater should be placed near the bottom so that there will be a natural circulation due to conduction. Need Help? Read It