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- A square pane of glass 0.500 m on a side is 6.00 mm thick. Whenthe temperatures on the two sides of the glass are 25.0°C and -10.0°C,the heat current due to conduction through the glass is 1.10 * 10^3 W.(a) What is the thermal conductivity of the glass? (b) If the thickness of theglass is increased to 9.00 mm, what will be the heat current?A steel section of the Alaskan pipeline had a length of 62.1 m and a temperature of 21.0 °C when it was installed. What is its change in length when the temperature drops to a frigid -34.2 °C?An aluminum rod is measured by a steel tape measure at rogm temperature (20°C) and found to be 12.575 m long. How hot in °C must the two (rod and tape measure) be for the measurement to be 12.635 m ?
- A steel bar 2 cm long is welded end to end to a copper bar 7 cm long. Each bar has a square cross section 2.00 cm on a side. The free end of the steel with a temprature at 63 °C, and the free end of the cooper bar is at 16 °C. Find the total rate of heat flow in (W)? (keteel -50.2 W/K.m and kcopper -385 W/K.m) (Answer in one decimal places) Materal having thermal conductivity k Area A Steel CopperThe diameter of a hole in a steel plate after heating from room temperature to 200 ° C is 9.02 cm. Determine the diameter of the hole at ambient temperature.A circular hole 2.5 cm in diameter was cut from the center of a steel disc 7.5 cm in diameter. Find the circumference of the hole and the area of the disc when the temperature was decreased by 100 C°
- A bridge is made with segments of concrete 63 m long (at the original temperature). If the linear expansion coefficient for con- crete is 1.2 × 10-5(°C)-¹, how much spacing is needed to allow for expansion for an in- crease in temperature of 63°F? Answer in units of cm.A steel bar 6 cm long is welded end to end to a copper bar 9 cm long. Each bar has a square cross section 2.00 cm on a side. The free end of the steel with a temprature at 66 °C, and the free end of the cooper bar is at 5 °C. Find the total rate of heat flow in (W)? (ksteel =50.2 W/K.m and kcopper =385 W/K.m ) (Answer in one decimal places) Material having thermal conductivity k Area A Steel Сорper T,>TA steel bridge is built in summer when the temperature is 25 degree Celsius. At the time of construction its length is 80.000 meters. What is the length of the bridge on a cold winter day when the temperature is negative 10 degree Celsius? (Given, Solution,Figure)
- To make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. A steel rivet 1.880 cm in diameter is to be placed in a hole 1.879 cm in diameter at 17 ∘C. To what temperature must the rivet be cooled if it is to fit in the hole?A vinyl siding panel for a house is installed on a day when thetemperature is 15.6 °C. If the coefficient of thermal expansion forvinyl siding is 55.8 * 10-6K-1, how much room (in mm) shouldthe installer leave for expansion of a 3.66-m length if the sunlittemperature of the siding could reach 48.9 °C?A steel bar 7 cm long is welded end to end to a copper bar 2 cm long. Each bar has a square cross section 2.00 cm on a side. The free end of the steel with a temprature at 54 °C, and the free end of the cooper bar is at 5 °C. Find the total rate of heat flow in (W)? (ksteel =50.2 W/K.m and kcopper =385 W/K.m ) (Answer in one decimal places) Material having thermal conductivity k Area A Steel Copper T,> T