What are the two parts of a typical X-ray spectrum?
a. The electron stream and the proton stream.
b. Part A and Part B.
c. A continuous spectrum caused by slowing electrons and a set of discrete spikes from atomic emissions.
d. A continuous spectrum from atomic emission and a set of discrete spikes from slowing electrons.
e. A quantized spectrum of atomic energy and a continuous spectrum of photoelectric energy.
c
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If the Sun were replaced by a one solar mass black hole:
A) all terrestrial planets would fall in immediately. B) we would still orbit it in a period of one year. C) we would immediately escape into deep space, driven out by its radiation. D) our clocks would all stop. E) life here would be unchanged.
What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 68 m?
a. 5 Hz b. 23120 Hz c. 340 Hz d. 0.2 Hz
A large cylindrical tank of water of radius 12.0 m is filled to a depth of 3.00 m. A spigot on the tank is a 3.00 cm inner diameter pipe that is located 20.0 cm above the bottom of the tank
If the spigot is opened, what is the speed of the water leaving the spigot? A) 3.68 m/s B) 27.5 m/s C) 54.9 m/s D) 7.41 m/s E) 5.24 m/s
A nonfoliated metamorphic rock composed of carbonate minerals is
A) gneiss. B) quartzite. C) slate. D) marble.