06:39Physics - Thermodynamics: Temperature (4 of 4) Thermal Linear Expansion: Example 3Michel van Biezen189views1rank
05:18Physics - Thermodynamics: Temperature (1 of 4) Thermal Linear Expansion: DefinitionMichel van Biezen168views
03:51Physics - Thermodynamics: Temperature (2 of 4) Thermal Linear Expansion: Example 1Michel van Biezen223views
Multiple ChoiceOn a very cold day at a temperature of –12°C, a power line made of aluminum between two support towers measures exactly 150.56m. You go out on a hot day and measure the power line to be exactly 150.71m. What is the temperature (in °C) outside? The linear expansion coefficient of aluminum is 2.4×10-5.446views11rankHas a video solution.
Multiple ChoiceAn aluminum rod is exactly 80.00cm long on a day when the temperature was 24.00°C. How long is the rod on a day when it is only 2.000°C? Use 2.3×10−5°C−1 for the coefficient of linear expansion for aluminum.196views
Textbook QuestionSteel train rails are laid in 12.0-m-long segments placed end to end. The rails are laid on a winter day when their temperature is -9.0°C. (a) How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 33.0°C?446viewsHas a video solution.
Textbook QuestionAs a new mechanical engineer for Engines Inc., you have been assigned to design brass pistons to slide inside steel cylinders. The engines in which these pistons will be used will operate between 20.0°C and 150.0°C. Assume that the coefficients of expansion are constant over this temperature range. (a) If the piston just fits inside the chamber at 20.0°C, will the engines be able to run at higher temperatures? Explain329viewsHas a video solution.
Textbook QuestionOne of the tallest buildings in the world is the Taipei 101 in Taiwan, at a height of 1671 feet. Assume that this height was measured on a cool spring day when the temperature was 15.5°C. You could use the building as a sort of giant thermometer on a hot summer day by carefully measuring its height. Suppose you do this and discover that the Taipei 101 is 0.471 foot taller than its official height. What is the temperature, assuming that the building is in thermal equilibrium with the air and that its entire frame is made of steel?729viewsHas a video solution.
Textbook QuestionThe 828-m-tall Burj Khalifa in Dubai is the world's tallest building. It's essentially a steel building wrapped in exterior paneling and glass. During construction, when the beams were exposed to the elements, the building was 36 cm taller on the hottest afternoon of the year than on the coldest morning. By how much did the temperature vary throughout the year?428viewsHas a video solution.
Textbook QuestionAt room temperature (20°C), a 5.0-cm-long brass rod is 20 μm too long to fit into a slot. To what temperature should you cool the rod so that it just barely fits?448viewsHas a video solution.
Textbook QuestionA surveyor has a steel measuring tape that is calibrated to be 100.000 m long (i.e., accurate to ±1 mm) at 20°C. If she measures the distance between two stakes to be 65.175 m on a 3°C day, does she need to add or subtract a correction factor to get the true distance? How large, in mm, is the correction factor?210viewsHas a video solution.
Textbook Question(I) A concrete highway is built of slabs 14 m long at 15°C. How wide should the expansion cracks between the slabs be (at 15°C) to prevent buckling if the range of temperature is - 30° C to + 50° C?16viewsHas a video solution.
Textbook Question(II) To what temperature would you have to heat a brass rod for it to be 1.5% longer than it is at 22°C?13viewsHas a video solution.
Textbook Question(II) A brass plug is to be placed in a ring made of iron. At 15°C, the diameter of the plug is 8.756 cm and that of the inside of the ring is 8.742 cm. They must both be brought to what common temperature in order to fit?13viewsHas a video solution.
Textbook Question(a) A horizontal steel I-beam of a cross-sectional area of 0.041 m² is rigidly connected to two fixed vertical supports. If the beam was installed when the temperature was 25°C(b) Is the ultimate strength of the steel exceeded?15viewsHas a video solution.
Textbook Question(I) The Eiffel Tower (Fig. 17–20) is built of wrought iron approximately 300 m tall. Estimate how much its height changes between January (average temperature of 2°C) and July (average temperature of 25°C). Ignore the angles of the iron beams and treat the tower as a vertical beam.<IMAGE>12viewsHas a video solution.
Textbook QuestionIf a steel band were to fit snugly around the Earth’s equator at 25°C but then was heated to 55°C, how high above the Earth would the band be (assume equal everywhere)?14views
Textbook Question"(II) An aluminum bar has the desired length when at 12°C. How much stress is required to keep it at this length if the temperature increases to 38°C? [See Table 12–1.]<IMAGE>"11viewsHas a video solution.
Textbook QuestionA precise steel tape measure has been calibrated at 14°C. At 37°C, (b) what will be the percentage error?13viewsHas a video solution.
Textbook Question(III) A barrel of diameter 134.122 cm at 20°C is to be enclosed by an iron band. The circular band has an inside diameter of 134.110 cm at 20°C. It is 9.4 cm wide and 0.65 cm thick. (a) To what temperature must the band be heated so that it will fit over the barrel? (b) What will be the tension in the band when it cools to 20°C ?11viewsHas a video solution.
Textbook QuestionAn iron cube floats in a bowl of liquid mercury at 0°C. (b) By what percent will the fraction of volume submerged change? [Hint: See Chapter 13.]14viewsHas a video solution.
Textbook QuestionA brass lid screws tightly onto a glass jar at 15°C. To help open the jar, it can be placed into a bath of hot water. After this treatment, the temperatures of the lid and the jar are both 55°C. The inside diameter of the lid is 7.0 cm. Find the size of the gap (difference in radius) that develops by this procedure.12viewsHas a video solution.