An electrical motor spins at a constant 2857.0 rev/min. If the armature radius is 2.685 cm, what is the acceleration of the outer edge of the armature?
A) 2403 m/s2
B) 844.4 m/s2
C) 241,100 m/s2
D) 84.40 m/s2
A
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In a binary system containing two neutron stars, the objects will ____
a. radiate orbital energy away as gravitational radiation and move farther apart b. radiate orbital energy away as gravitational radiation and move closer together c. exchange mass until their orbital periods become equal d. exchange mass until they are in synchronous rotation e. exchange angular momentum, lengthening the period of the pulsar
The Tokamak is a type of
A. experimental fusion reactor. B. particle accelerator. C. nuclear reactor using graphite as a moderator, such as the reactor at Chernobyl. D. moderator used in pressurized heavy water reactors.
If vector = -3.0 - 4.0 , and vector = +3.0 -8.0 , then the magnitude of vector = - is
A) 3.0 B) 16 C) 7.2 D) 144 E) 13.4
Classical theory predicted that the photocurrent, of the photoelectric effect, should be proportional to the
A) frequency of light. B) wavelength of light. C) intensity of light. D) electric field magnitude.