Watts per square meter is a unit for measuring the ______________ of a sound wave

Fill in the blank(s) with correct word


intensity

Physics & Space Science

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In what range of masses are most stars found? What about the range in luminosity? How are they related?

What will be an ideal response?

Physics & Space Science

Why doesn't the Hubble Space Telescope need adaptive optics?

What will be an ideal response?

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Observer A sees a ruler moving by in a relativistic train and measures its length to be LA. Observer B moves together with the train and measures the length of the ruler to be LB. These two results will be such that

A) LA > LB. B) LA = LB. C) LA < LB. D) LA could be greater or smaller than LB depending on the direction of the motion.

Physics & Space Science

On average, how fast do the plates move on the Earth?

A) a few centimeters per year B) a few millimeters per century C) about 1 mile per hour D) a few kilometers per year

Physics & Space Science