Calculate the ground state energy (in eV) for an electron in a box (an infinite well) having a width of 0.050 nm
a. 10
b. 75
c. 24
d. 150
e. 54
D
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Does the centripetal force acting on an object do work on the object?
A) no, because the object has constant speed B) yes, since it takes energy to turn an object C) yes, since a force acts and the object moves, and work is force times distance D) no, because the force and the displacement of the object are perpendicular E) yes, because the force and the displacement of the object are perpendicular
A force of 15.0 N is applied to a wire with an un-stretched length of 4.00 m and a diameter of 5.00 mm. If the wire changed length by 1.20 mm, then the strain in the wire is
a. 
b. 
c. 
d. 
e. 
Which of the following is not an exception to the general patterns in the solar system?
A) the counterclockwise rotation of Venus B) the large size of Earth's Moon C) the rings of Saturn D) the extreme axis tilt of Uranus E) the retrograde rotation of Triton around Neptune
The mass of a typical adult woman is closest to
A) 20 kg. B) 35 kg. C) 75 kg. D) 150 kg.