A square, flat loop of wire is pulled at constant velocity through a region of uniform magnetic field directed perpendicular to the plane of the loop as shown in Figure OQ31.5. Does charge separation occur in the coil?
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Light travels ________ in water than in air.
A. faster B. slower C. perpendicular to D. at the same speed
Two simple pendulums of equal length l = 0.45 m are suspended from the same point. The pendulum bobs are small solid steel spheres. The first bob is drawn back to make a 35° angle with the vertical, while the other one is left hanging at rest
If the first bob has a mass of 0.25 kg and the second has a mass of how high will the second bob rise above its initial position when struck elastically by the first bob after it is released? A) 2.7 cm B) 3.3 cm C) 4.4 cm D) 3.9 cm
The energy released from a nuclear reaction is equal to:
a. energy associated with momentum conservation. b. the exothermic endothermy. c. energy associated with the change in mass. d. the total charge involved.
When a boxer moves into an oncoming punch, the force experienced is
A) decreased.
B) increased.
C) no different, but the timing is different.
D) all of the above