A torque of 15.0 N•m is applied to a bolt. The bolt rotates through an angle of 360 degrees. The work done in turning the bolt is
A. 94.2 J.
B. 91.3 J.
C. 96.7 J.
D. 89.9 J.
E. 98.1 J.
A. 94.2 J.
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Which one of the following terms describes the resistance that a battery (or other emf device) has in a circuit?
a) super resistance b) critical resistance c) internal resistance d) terminal resistance e) electroresistance
An electron and a positron (antielectron), both nearly at rest, collide. What particle(s) is(are) produced?
a. One photon of energy 1.02 MeV b. Two photons of energy 511 keV c. A pi-meson d. A K-meson and an anti-neutrino
Pulling out of a dive, the pilot of an airplane guides his plane into a vertical circle. At the bottom of the dive, the speed of the airplane is 320 m/s
What is the smallest radius allowable for the vertical circle if the pilot's apparent weight is not to exceed 7.0 times his true weight? A) 2200 m B) 1700 m C) 42 m D) 1500 m E) 230 m
Electrons in atoms move about the nucleus in well-defined circular orbits
a. True b. False Indicate whether the statement is true or false