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Q1. During an all-night cram session, a student heats up a one-half liter (0.50 x 103 m3) glass (Pyrex) beaker of cold coffee. At first, the temperature is 18 °C, and the beaker is filled to the brim. A short time later when the student returns, the temperature has risen to 92 °C. The coefficient of volume expansion of coffee is the same as that of water. How much coffee (in cubic meters) has spilled out of the beaker?
Q2. Far in space, where gravity is negligible, a 495 kg rocket traveling at 95 m/s fires itsengines. The thrust force as a function of time,with horizontal axis in 11 sincrements. The mass lost by the rocket throughout these 30 s is negligible.
How much heat does it take to enhance the temperature of 8.00 of an ideal monatomic gas from 22.0 to 61.0 if the gas is held at constant volume.
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A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that three different wave-lengths are observed while the hydrogen relaxes back to the ground state. What is the wavelength of the incident beam.
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Find out the speed of a 56.7 kg thrill seeker at the bottom of the slide, assume no friction. If the thrill seeker has a speed of 24.1 m/s at the bottom, find out the change in mechanical energy due to friction.
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