Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
4th Edition
ISBN: 9780133942651
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Chapter 19, Problem 36EAP
What maximum power can be
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Chapter 19 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Ch. 19 - Prob. 1CQCh. 19 - Do (a) temperature, (b) heat, and (c) thermal...Ch. 19 - Prob. 3CQCh. 19 - You need to raise the temperature of a gas by...Ch. 19 - Prob. 5CQCh. 19 - Prob. 6CQCh. 19 - FIGURE Q19.7 shows two different processes taking...Ch. 19 - FIGURE Q19.8 shows two different processes taking...Ch. 19 - The gas cylinder in FIGURE Q19.9 is a rigid...Ch. 19 - The gas cylinder in FIGURE Q19.10 is well...
Ch. 19 - The gas cylinder in FIGURE Q19.11 is well...Ch. 19 - How much work is done on the gas in the process...Ch. 19 - Prob. 2EAPCh. 19 - Prob. 3EAPCh. 19 - A 2000 cm3 container holds 0.10 mol of helium gas...Ch. 19 - Prob. 5EAPCh. 19 - Prob. 6EAPCh. 19 - Draw a first-law bar chart (see Figure 19.12) for...Ch. 19 - Draw a first-law bar chart (see Figure 19.12) for...Ch. 19 - 9. Draw a first-law bar chart (see Figure 19.12)...Ch. 19 - Prob. 10EAPCh. 19 - J of work are done on a system in a process that...Ch. 19 - How much heat energy must be added to a...Ch. 19 - Prob. 13EAPCh. 19 - Prob. 14EAPCh. 19 - Prob. 15EAPCh. 19 - Prob. 16EAPCh. 19 - One way you keep from overheating is by...Ch. 19 - Prob. 18EAPCh. 19 - Two cars collide head-on while each is traveling...Ch. 19 - An experiment measures the temperature of a 500 g...Ch. 19 - 30 g of copper pellets are removed from a 300°C...Ch. 19 - A 750 g aluminum pan is removed from the stove and...Ch. 19 - A 50.0 g thermometer is used to measure the...Ch. 19 - A 500 g metal sphere is heated to 300°C, then...Ch. 19 - A 65 cm3 block of iron is removed from an 800°C...Ch. 19 - Prob. 26EAPCh. 19 - A container holds 1.0 g of oxygen at a pressure of...Ch. 19 - The volume of a gas is halved during an adiabatic...Ch. 19 - Prob. 29EAPCh. 19 - Prob. 30EAPCh. 19 - Prob. 31EAPCh. 19 - Prob. 32EAPCh. 19 - Prob. 33EAPCh. 19 - Prob. 34EAPCh. 19 - Prob. 35EAPCh. 19 - What maximum power can be radiated by a...Ch. 19 - Radiation from the head is a major source of heat...Ch. 19 - Prob. 38EAPCh. 19 - Prob. 39EAPCh. 19 - Prob. 40EAPCh. 19 - Prob. 41EAPCh. 19 - Prob. 42EAPCh. 19 - Prob. 43EAPCh. 19 - The specific heat of most solids is nearly...Ch. 19 - Prob. 45EAPCh. 19 - Prob. 46EAPCh. 19 - Prob. 47EAPCh. 19 - Prob. 48EAPCh. 19 - .0 mol of gas are at 30°C and a pressure of 1.5...Ch. 19 - A 6.0-cm-diameter cylinder of nitrogen gas has a...Ch. 19 - Prob. 51EAPCh. 19 - An ideal-gas process is described by p = cV 1/2 ,...Ch. 19 - Prob. 53EAPCh. 19 - Prob. 54EAPCh. 19 - Prob. 55EAPCh. 19 - Prob. 56EAPCh. 19 - Prob. 57EAPCh. 19 - .10 mol of nitrogen gas follow the two processes...Ch. 19 - Prob. 59EAPCh. 19 - Prob. 60EAPCh. 19 - Prob. 61EAPCh. 19 - Prob. 62EAPCh. 19 - Prob. 63EAPCh. 19 - Prob. 64EAPCh. 19 - Prob. 65EAPCh. 19 - Prob. 66EAPCh. 19 - Prob. 67EAPCh. 19 - Prob. 68EAPCh. 19 - Prob. 69EAPCh. 19 - A cylindrical copper rod and an iron rod with...Ch. 19 - Prob. 71EAPCh. 19 - Prob. 72EAPCh. 19 - Prob. 73EAPCh. 19 - Prob. 74EAPCh. 19 - Prob. 75EAPCh. 19 - Prob. 76EAPCh. 19 - Prob. 77EAPCh. 19 - Prob. 78EAPCh. 19 - Prob. 79EAPCh. 19 - Prob. 80EAPCh. 19 - Prob. 81EAPCh. 19 - Prob. 82EAP
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- A computer chip inside an orbiting satellite heats up during operation. Since there is no air in the satellite the only cooling will be by radiation. The chip is 1.50 cm wide by 2.50 cm long with a negligible thickness, and assume that the chip radiates heat evenly from both the top and bottom surfaces. The chip has an emissivity of 0.600 and dissipates 0.410 Watts during usage. Assuming that the inside temperature of the satellite is held at a constant -100.0°C; calculate the surface temperature of the chip in units of Celsius.arrow_forwardAs our bodies burn food as fuel, we radiate energy. Assume a person has a body surface area of 1.80 m2 and an emissivity of 0.620 (a reasonable value for someone wearing clothes). What is the power radiated by the person? (Normal body temperature is 37.0°C.)arrow_forwardThe emissivity of tungsten is 0.35. A tungsten sphere with radius 1.61 cm is suspended within a large evacuated enclosure whose walls are at 300 K. What power input (in W) is required to maintain the sphere at a temperature of 3029 K if heat conduction along the supports is neglected? Round your answer to 2 decimal places.arrow_forward
- A 4 cm diameter and 6 cm long cylindrical rod at 1000 K emits a 385 kJ of radiation in 20 minutes. What is its emissivity? [Õ = 5.67×10 -8 Wm-2K-4 ]arrow_forwardWhat is the rate of heat transfer by radiation, with an unclothed person standing in a dark room whose ambient temperature is 22.0ºC . The person has a normal skin temperature of 33.0ºC and a surface area of 1.50 m2 . The emissivity of skin is 0.97 in the infrared, where the radiation takes place.arrow_forwardThe outer surface of a spacecraft in space has an emissivity of 0.8 and a solar absorptivity of 0.3. If solar radiation is incident on the spacecraft at a rate of 950 W/m?, determine the surface temperature of the spacecraft, when the radiation emitted equals the solar energy absorbed.arrow_forward
- The side surfaces of a 3-m-high cubic industrial furnace burning natural gas are not insulated, and the temperature at the outer surface of this section is measured to be 110°C. The temperature of the furnace room, including its surfaces, is 30°C, and the emissivity of the outer surface of the furnace is 0.7. It is proposed that this section of the furnace wall be insulated with glass wool insulation (k = 0.038 W/m·K) wrapped by a reflective sheet (« = 0.2) in order to reduce the heat loss by 90 percent. Assuming the outer surface temperature of the metal section still remains at about 110°C, determine the thickness of the insulation that needs to be used. The furnace operates continuously throughout the year and has an efficiency of 78 percent. The price of the natural gas is $1.10/therm (1 therm = 105,500 kJ of energy content). If the installation of the insulation will cost $550 for materials and labor, determine how long it will take for the insulation to pay for itself from the…arrow_forwardA sphere of radius 0.50 m, temperature 27.0 °C, and emissivity 0.850 is located in an environment of temperature 77.0 °C. At what rate does the sphere emit thermal radiation? absorb thermal radiation? What is the sphere’s net rate of energy exchange?arrow_forwardA thermal window, with an area of 6.0m ^ 2, is constructed of two layers of glass, each 4.0mm thick, separated from each other by a 5.0mm air gap. If the inner surface is at 20.0 ° C and the outer surface is at -5.0 ° C, what is the rate of energy transfer by conduction through the window? The thermal conductivity of glass is 0.8 W⁄ (m. ° C) and that of air is 0.023 W⁄ (m. ° C)arrow_forward
- The surface of the Sun has a temperature of 5500 °C. Treating the Sun as a perfect blackbody, with an emissivity of 1.0, find the power that it radiates into space. The radius of the Sun is 7.0 × 108m, and the temperature of space can be taken to be 3.0 K.arrow_forwardA walrus transfers energy by conduction through its blubber at the rate of 150 W when immersed in −1.00 °C water. The walrus’s internal core temperature is 37.0 °C , and it has a surface area of 2.00 m2 . What is the average thickness of its blubber, which has the conductivity of fatty tissues without blood?arrow_forwardThe outer surface of a spacecraft in space has an emissivity of 0.6 and an absorptivity of 0.2 for solar radiation. If solar radiation is incident on the spacecraft at a rate of 1000W/m2, determine the surface temperature of the spacecraft when the radiation emitted equals the solar energy absorbed.arrow_forward
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