A voltage regulator compensates for changes in
a. temperature.
b. the load conditions.
c. the input voltage.
d. All of the above.
Answer: d. All of the above.
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The gamma radiation first classified by Rutherford was in fact which of the following?
a. helium nuclei b. high energy quanta c. electrons d. positrons
Compared to Saturn, Jupiter is about
A) 100 times more massive. B) twice the diameter, but less dense. C) half as dense, but the same mass since it is larger. D) three times more massive and denser. E) half as massive and denser.
At least ________ % of stars host at least one planet
A) 70 B) 1 C) 10 D) 30
When we look at an object that is 1,000 light-years away, we see it ________
A) as it was 1,000 light-years ago B) looking just the same as our ancestors would have seen it 1,000 years ago C) as it is right now, but it appears 1,000 times dimmer D) as it was 1,000 years ago