Thrust a magnet into a coil of wire and you'll induce
A) voltage.
B) current.
C) both of these
D) none of the above
Answer: C
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Going from land to the deep ocean basin, the ocean's topography consists of the _______.
Fill in the blank(s) with the appropriate word(s).
The ground-state energy of an electron in a hydrogen atom is ?13.6 eV. This means that the binding energy of that electron is
A. ?13.6 eV. B. +13.6 eV. C. Some other value (specify).
Estimate the following:
(a) The change in your gravitational potential energy on taking an elevator from the ground floor to the top of the Empire State Building. The building is 102 stories high (assuming a 3 min ride to the top of the building). (Assuming your mass is 68 kg and the height of one story to be 3.5 m.) (b) The average force exerted by the elevator on you during the trip. (c) The average power delivered by that force.
A box is sliding down an incline tilted at an angle 14.0° above horizontal. The box is sliding down the incline at a speed of 1.70 m/s. The coefficient of kinetic friction between the box and the incline is 0.380
How far does the box slide down the incline before coming to rest? A) 1.16 m B) 2.33 m C) 1.78 m D) 0.720 m E) The box does not stop. It accelerates down the plane.