If the density of aluminum is 2700 kg/m3 at 20 C find the density at 100 C. (linear thermal expansion = 22 x 10-6 /K).
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- A spherical steel ball bearing has a diameter of 2.540 cm at 26.00°C. (Assume the coefficient of linear expansion for steel is 11 x 10-6 (°C)-1.) (a) What is its diameter when its temperature is raised to 113.0°C? (Give your answer to at least four significant figures.) cm (b) What temperature change is required to increase its volume by 1.100%? °C Need Help? Read ItHeat transfers by conduction through a glass window, connecting a 22 degree Celsius room to a 36 degree Celsius summer day outside. If the area of the window is 0.75 m^2, the thickness of the glass is 0.5 cm, and the thermal conductivity of glass is 1.0 J/s m K, how much heat transfers through the window of each second?A 15.9 L aluminum pot filled to the brim with 7.85˚C water. How many litres of water will overflow when the temperature of the water is raised to 76.96˚C [round your final answer to three decimal places]? Note that the pot and the water will be in equilibrium at both temperatures. {volume coefficient of thermal expansion for water = 207 × 10-6 ˚C-1; volume coefficient of thermal expansion for aluminum = 70 × 10-6 ˚C-1}
- The volume of a certain liquid varies with temperature as ? = ?0(0.75+ 3.9 × 10-4T + 1.48 × 10-6 T2) where ?0 is its volume at 300 K. Calculate its volume expansivity ? at 320 K.An iron rod with an initial length of 11.1 m has its temperature raised from 16o C to 30.35o C. If iron has a coefficient of thermal expansion of 12x10-6 1/oC, what is the change in length of the rod in mm?A 17.2 L aluminum pot filled to the brim with 8.58˚C water. How many litres of water will overflow when the temperature of the water is raised to 73.8˚C [round your final answer to three decimal places]? Note that the pot and the water will be in equilibrium at both temperatures. {volume coefficient of thermal expansion for water = 207 × 10-6 ˚C-1; volume coefficient of thermal expansion for aluminum = 70 × 10-6 ˚C-1}
- A steel beam being used in the construction of a skyscraper has a length of 30.000 m when delivered on a cold day at a temperature of 13.000°F. What is the length of the beam when it is being installed later on a warm day when the temperature is 87.000°F? (Give your answer to at least five significant figures.)How much heat (in cal) is needed to heat a container of water (with a mass of 4.1 kg) (specific heat 1.00 cal/g deg C) from 16 deg Celsius to boiling (100 deg Celsius)?An incandescent light bulb with a surface area of 0.0120 m2 and an emissivity of 0.9 has a surface temperature of 178°C. What is the rate of thermal radiation emitted from the bulb [round your final answer to one decimal place]? {o = 5.6704 x 10-8 W/(m²-K“)} 60 W T.
- The density of lead is 1.13 x 10“ kg/m³ at 20.0°C. Find its density (in kg/m) at 131°C. (Use a = 29 x 10-° (°C)-- for the coefficient of linear expansion. Give your answer to at least four significant figures.) HINT 3 × kg/m³ 11216.1A gold wire 2.4 m long has its temperature lowered by 42oC. Assuming the linear coefficient of expansion has a constant value of 13 x 10-6 K-1 over that temperature range, calculate the change in length of the wire. Express your answer in mm.