9. The height of the Washington Monument is measured to be 170 m on a day when the temperature is 35.0°C. what will its height be on a day when the temperature falls to -10.0°C? Although the monument is made of limestone, assume that its thermal coefficient ofexpansion is the same as marble's.
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- A large steam pipe is covered with a 4.80 cm thick insulating material with a thermal conductivity of 0.17 W/(m°C). How much energy is lost every second when the temperature of the steam inside the pipe is at 265 °C and the temperature outside of the pipe is 13.0 °C? The pipe has a diameter of 3.70 m and a length of 185 m. Neglect losses through the ends of the pipe. 3863.3 JA steel bridge is built in the summer when its temperature is 38.0 ∘C∘C. At the time of construction, its length is 79.05 mm . Part A) What is the length of the bridge on a cold winter day when its temperature is -11.5 ∘C∘C? Express your answer using four significant figures. L= ---------mIf you have 0.251 m³ of water at 25.0 °C in an insulated container and add 0.112 m³ of water at 95.0 °C, what is the final temperature T; of the mixture? Use 1000 kg/m³ as the density of water at any temperature. °C Tf =
- The frames for a pair of eyeglasses have a radius of 2.14 cm at 20.0°C. Lenses with radius of 2.15 cm have to be inserted into these frames. To what temperature must the technician heat the frames to accommodate the lenses? The frames are made of a material whose thermal expansion coefficient is 1.30 10-4/°C.An aluminum cup with mass 0.56 kg holds 0.96 kg of water. Both the cup and the water have a temperature of 10.°C. If a 0.76-kg piece of copper at 53.°C is added to the cup, what is the final equilibrium temperature in °C? You may assume that the cup, water, and copper are well insulated from anything else.At a temperature of 22.00°C the hole in a steel plate has a diameter of 1.030 cm. If a steel rod with a diameter of 1.037 cm has to just slip through this hole, to what temperature should the plate be heated? The coefficient of area expansion of steel is 24 x 10-6/°C. °C
- 1. A block of iron with a mass of 2.00 kg is initially at a temperature of 600° C. It is dropped into an insulating container that holds 0.400 kg of ice initially at -15.0° C and 0.700 kg of water that is initially at 25.0° C. What will be the final temperature of the system? (Hint: all of the ice melts, you're welcome)1.1. Most automobiles have a coolant reservoir to catch radiator fluid that may overflow when the engine is hot. A radiator is made of copper and is filled to its 17 -L capacity when at 10 °C. What volume of radiator fluid will overflow when the radiator and fluid reach their 95 °C operating temperature, given that the fluid's volume coefficient of expansion is ß= 400 ×10-6/°C? Note that this coefficient is approximate, because most car radiators have operating temperatures of greater than 95 °C. The volume coefficient of expansion of copper is 5.1 x 10-5/°C. Hint: Consider the expansions of both the fluid and the radiator. AV: L