COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Question
Chapter 14, Problem 106QAP
To determine
The ratio of the temperature of the star to the temperature of our sun.
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Chapter 14 Solutions
COLLEGE PHYSICS
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- The temperature of the Sun’s interior is about 107 degrees. Does it matter whether this is degrees Celsius or kelvins? Explain.arrow_forwardNuclear fusion, the energy source of the Sun, hydrogen bombs, and fusion reactors, occurs much more readily when the average kinetic energy of the atoms is high—that is, at high temperatures. Suppose you want the atoms in your fusion experiment to have average kinetic energies of 6.40 X 10-14 J. What temperature is needed?arrow_forwardDoes it ever make sense to say that one object is "twice as hot" as another? Does it matter whether one is referring to Celsius or kelvin temperatures? Explain.arrow_forward
- The temperature inside the International Space Station (ISS) is kept at around 70F.Outside the ISS the temperature ranges from +250F (when between the Earth and thesun) and -250F (when shaded by the Earth). What are these three temperatures on theCelsius scale?arrow_forwardIf a mercury thermometer is immersed in hot liquid, the mercury level goes down at first and then goes up. Explain why this happens.arrow_forwardThe temperature difference between the hot and cold fluids in a heat exchanger is given to be DT1 at one end and DT2 at the other end. Can the logarithmic temperature difference DTlm of this heat exchanger be greater than both DT1 and DT2? Explain.arrow_forward
- The Humber Bridge in England has the world’s longest single span, 1410m. Calculate the change in length of the steel deck of the span when the temperature increases from -5.0°C to 18.arrow_forwardStars A and B have the same temperature, but star A has twice the radius of star B. (a) What is the ratio of star As power output to star Bs output due to electromagnetic radiation? The emissivity of both stars can be assumed to be 1. (b) Repeat the question if the stars have the same radius, but star A has twice the absolute temperature of star B. (c) Whats the ratio if star A has both twice the radius and twice the absolute temperature of star B?arrow_forwardConsider a container of nitrogen gas molecules at 900 K. Calculate (a) the most probable speed, (b) the average speed, and (c) the rms speed for the molecules. (d) State how your results compare with the values displayed in Figure 21.11.arrow_forward
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