Compared to ultraviolet waves, the frequency of infrared waves is

A) lower.
B) the same.
C) higher.


Answer: A

Physics & Space Science

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What will be an ideal response?

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______________ is the largest known asteroid

Fill in the blank(s) with correct word

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In ancient times permanent magnets were known to the Greeks. These magnets were chunks of iron ore now called magnetite. What is the older name for this material?

A. magnesia B. lodestone C. oersted D. compass E. None of these choices are correct.

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An avalanche of ice and snow of mass 2500 kg slides a vertical distance of 160 m down a mountainside. If the temperature of the ice, snow, mountain, and surrounding air are all at 0°C, what is the change in entropy of the universe?

a. 14,000 J/K c. 1400 J/K b. 10,000 J/K d. 1100 J/K

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