Which of these objects would exhibit diffuse reflection if you shone a light on it?
a. A cactus.
b. A mirror.
c. A still pool of water.
d. A polished table top.
e. A window.
a
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To recharge a 12-V battery, a battery charger must move 3.6 × 10^5 C of charge from the negative to the positive terminal. What amount of work is done by the battery charger? How many kilowatt hours is this?
For light bulbs of different wattages connected in a series circuit, the _______ will be the same for each when ON
a. current b. voltage c. power d. resistance
A billiard ball traveling at 3.00 m/s collides perfectly elastically with an identical billiard ball initially at rest on the level table
The initially moving billiard ball deflects 30.0° from its original direction. What is the speed of the initially stationary billiard ball after the collision? A) 2.00 m/s B) 0.866 m/s C) 1.50 m/s D) 2.59 m/s E) 0.750 m/s
If a diatomic quantum mechanical vibrator in its ground state has energy E, what is its energy in its second state above the ground state?
A) 3E. B) 7E. C) E. D) 9E. E) 5E.