The ratio of the specific heat of an ideal gas at constant volume to its specific heat at constant pressure is:
A. R
B. 1/R
C. dependent on the temperature
D. dependent on the pressure
E. different for monatomic, diatomic, and polyatomic gases
Answer: E. different for monatomic, diatomic, and polyatomic gases
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A. Prism or A Diffraction Grating |
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E. Continuous Spectrum |
F. Joseph Van Fraunhofer |
Which of the following is not an observed characteristic of the cosmic microwave background?
A) It contains prominent spectral lines of hydrogen, the primary chemical ingredient of the universe. B) It has a perfect thermal radiation spectrum. C) Its temperature is a little less than 3 Kelvin (3 degrees above absolute zero). D) Its temperature is the same everywhere, except for small variations at the level of 1 part in 100,000.
A damped oscillator is released from rest with an initial displacement of 10.00 cm. At the end of the first complete oscillation the displacement reaches 9.05 cm. When 4 more oscillations are completed, what is the displacement reached?
a. 7.41 cm b. 6.71 cm c. 6.07 cm d. 5.49 cm e. 5.25 cm
The distance to the Andromeda Galaxy is estimated at about 2 × 10^6 light years. A light year is the distance traveled by light in one year; if the speed of light is 3 × 10^8 m/s, about how far is it from our galaxy to Andromeda? (1 year = 3.15 × 10^7 s)
a. 10 × 10^15 m c. 2 × 10^22 m b. 1 × 10^18 m d. 6 × 10^12 m