As water changes to ice, water molecules
A) absorb energy.
B) release energy.
C) retain their energy.
D) lose the quality of wetness.
Answer: B
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Two bulbs are shown in a circuit that surrounds a region of increasing magnetic field directed out of the page. When the switch is closed,
A. bulb 1 glows more brightly. B. bulb 2 glows more brightly. C. both bulbs glow equally brightly. D. bulb 1 goes out. E. bulb 2 goes out.
Suppose you are inside a smooth-flying [no bumps] jet plane moving at constant speed in a straight line across the Atlantic Ocean. Can you detect this motion [i.e
, can you tell that you are moving] without directly or indirectly making use of anything outside of your own reference frame? If so, how could you detect this; and if not, why not? A) Yes. For example, if you dropped a coin you would find that it lands to the rear of the drop point. B) Yes. For example, if you dropped a coin you would find that it lands to the front of the drop point. C) No, because of the principle of relativity. D) No, because of the principle of the constancy of lightspeed. E) No, because jet planes move far too slowly for such an effect to actually be observed.
When the Moon is totally eclipsed, the Moon is illuminated by some sunlight reflected by Earth's atmosphere
a. True b. False Indicate whether the statement is true or false
Uniform Circular Motion: You need to design a wheel for testing purposes such that its rim will have an acceleration of 1.5 g when the rim is moving at 37 m/s while spinning. What should be the diameter of this wheel?
Fill in the blank(s) with the appropriate word(s).