If the speed of a bicycle is reduced to half before skidding to a stop, it will skid
A) one-eighth as far.
B) one-fourth as far.
C) one-half as far.
D) none of the above
Answer: B
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Which of these stars lies closest to the north celestial pole on the celestial sphere?
A) Deneb B) Alpha Centauri C) Spica D) Sirius
How do coal power plants and nuclear power plants differ?
A) One has a stack--i.e., smokestack--and the other doesn't. B) They use different fuels. C) Both of the above. D) One uses a cooling tower or a cooling lake or river, and the other doesn't. E) All of the above.
In axial loading parallel to the fibers of a uniaxial continuous composite material, it is the material with the lowest _________to fracture that fails first.
Fill in the blank(s) with the appropriate word(s).
Two long parallel wires carry unequal currents in opposite directions. The ratio of the currents is 3 to 1. The magnitude of the magnetic field at a point in the plane of the wires and 10 cm from each wire is 4.0 ?T. What is the larger of the two currents?
A. 0.5 A B. 1.0 A C. 1.5 A D. 2.0 A E. 3.0 A