During totality of a lunar eclipse the Moon disappears from view on the night sky.
Answer the following statement true (T) or false (F)
False
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What does the exclusion principle say?
A) Two fermions cannot occupy the same quantum state at the same time. B) No two particles of any type can ever occupy the same quantum state at the same time. C) If a particle has a precisely defined position it is excluded from having a precisely defined momentum. D) The laws of quantum mechanics are excluded from our common sense.
If you connect two identical storage batteries together in series ("+" to "-" to "-" to "+"), and place them in a circuit, the combination will provide
A) zero volts. B) twice the voltage, and different currents will flow through each. C) twice the voltage, and the same current will flow through each. D) the same voltage, and different currents will flow through each. E) the same voltage, and the same current will flow through each.
A refrigerator transfers heat from a colder body to a hotter body while energy is used to operate the device. This is
A. impossible unless the refrigerator uses a Carnot cycle. B. allowed only if the internal energy of the refrigerator increases. C. consistent with Clausius's statement of the second law. D. possible if entropy of the contents of the refrigerator increases.
A particle (m = 20 mg, q = ?5.0 ?C) moves in a uniform electric field of 60 N/C in the positive x direction. At t = 0, the particle is moving 25 m/s in the positive x direction and is passing through the origin. How far is the particle from the origin at t = 2.0 s?
a. 80 m b. 20 m c. 58 m d. 10 m e. 30 m