What is the benefit of a longer exposure time when making an image?

A) It allows the detector to collect more total light.
B) It allows the detector to measure rapid variations in light intensity.
C) It allows the detector to record light at very short wavelengths.
D) It allows the detector to achieve higher angular resolution.


A) It allows the detector to collect more total light.

Physics & Space Science

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A wave oscillates up and down two complete cycles each second. If the wave travels an average distance of 6 meters in one second, its wavelength is

A) 0.5 m. B) 1 m. C) 2 m. D) 3 m. E) 6 m.

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What is the net power needed to change the speed of a 1600-kg sport utility vehicle from 15.0 m/s to 40.0 m/s in 4.00 seconds?

A) 100 kW B) 10.0 kW C) 140 kW D) 14.0 kW E) 275 kW

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The pressure exerted by a gas is the result of __________

Fill in the blank(s) with correct word

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Medium A blocks more of a certain wavelength of radiation than medium B. Medium A has a higher

A) albedo. B) transparency. C) clarity. D) opacity. E) seeing.

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