In a home steam radiator, thermal energy is released mainly by
A) evaporation.
B) condensation.
C) sublimation.
D) none of the above
Answer: B
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What do we mean when we say that two light rays striking a screen are in phase with each other?
A) When the electric field due to one is a maximum, the electric field due to the other is also a maximum, and this relation is maintained as time passes. B) They are traveling at the same speed. C) They have the same wavelength. D) They alternately reinforce and cancel each other.
Methyl salicylate is an ester commonly called
a. glycerine. b. oil of wintergreen. c. heroin. d. chloroform. e. methamphetamine.
Proportional Reasoning: Two cars are traveling at the same speed and hit the brakes at the same time. Car A decelerates (decreases its velocity) at twice the rate of car B. If car B takes time T to stop, how long does it take car A to stop?
A. 4T B. 2T C. T D. T /2 E. T/4
What is the drag coefficient CD?
What will be an ideal response?