Electrons fired in vintage TV tubes traveled at about 0.25 times the speed of light, having more momentum and energy than would be required classically to get that speed. Strictly speaking, this
A) increased your electric bill.
B) decreased your electric bill.
C) had no effect on your electric bill.
Answer: A
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Aluminum and _________are added to superalloys to provide corrosion and oxidation resistance.
Fill in the blank(s) with the appropriate word(s).
Venus's tectonic processes seem to be vertical rather than horizontal
a. True b. False Indicate whether the statement is true or false
How do we know that chlorine caused the ozone hole?
A) From measurements of the relationship between the experimental release of chlorine from the land surface in Antarctica, and the depletion of ozone that appeared in the atmosphere a few days later. B) From laboratory experiments involving a replica of the atmosphere over Antarctica. C) From the relationship between the release of chlorine by the Pinatubo volcano and the depletion of ozone over Antarctica a few months later. D) From theories of the chemical destruction of ozone, coupled with computer calculations. E) From measurements of chlorine monoxide and ozone in the Antarctic atmosphere as the sun reappeared in the spring.
The maximum possible speed in nature is the speed of light
a. True b. False Indicate whether the statement is true or false