There is a magnetic force on a particle. It is possible that the particle is:
a. uncharged.
b. stationary.
c. moving in the direction of the magnetic field.
d. not part of a wire.
d
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If the atoms are in irregular arrangements, the material is ______________.
Fill in the blank(s) with the appropriate word(s).
A 75-kg swimmer dives horizontally off a 500-kg raft. The diver's speed immediately after leaving the raft is 4.0 m/s. A micro-sensor system attached to the edge of the raft measures the time interval during which the diver applies an impulse to the raft just prior to leaving the raft surface. If the time interval is read as 0.20 s, what is the magnitude of the average horizontal force by diver on the raft?
a.900 N b.450 N c.525 N d.1500 N
Occam's Razor
A) divides the inner planets from the outer planets. B) tells scientists to use the simplest model, all other things being equal. C) is the term that describes how thin the rings of the Jovian planets are. D) describes how a planet's orbital period and distance from the Sun are related. E) is the tool that Copernicus used to shave.
A spaceship carrying a light clock moves at a speed of 0.96 c relative to an observer on Earth. Relative to a frame of reference that is fixed with respect to the earth, how long does it take the clock to advance 1 s?
A) 5.83 s B) 3.57 s C) 0.96 s D) 1.22 s E) 2.59 s