Compton Scattering: X-rays of energy 3.5 × 104 eV scatter through an angle of 105° off of a free electron. What is the energy (in eV) of the scattered x-rays? (melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
Fill in the blank(s) with the appropriate word(s).
3.2 × 104 eV
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The spectrum of a(n) ____________________ consists of a continuum and a few highly red shifted emission lines of due to hydrogen
Fill in the blank(s) with correct word
Which of the following statements about Earth's troposphere is not generally true?
A) It is the lowest layer of the atmosphere. B) It is the layer of the atmosphere in which convection plays the most important role. C) It is the layer of the atmosphere in which ozone absorbs dangerous ultraviolet light from the Sun. D) It is a layer of the atmosphere in which temperature declines with increasing altitude.
In the troposphere segment of the Earth's atmosphere, as you increase in altitude the temperature decreases. This means the speed of sound decreases as you increase in altitude
a. True b. False Indicate whether the statement is true or false
A fluid has a density of 1 040 kg/m3 . If it rises to a height of 1.60 cm in a 1.50-mm diameter capillary tube, what is the surface tension of the liquid? Assume a contact angle of zero
a. 0.0612 N/m b. 0.122 N/m c. 6.12 N/m d. 0.245 N/m e. 12.2 N/m