What is a planet's Roche limit?
What will be an ideal response?
The distance from a planet inside which a moon will be tidally torn apart.
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The _____ of an object is a measure of the amount of matter in the object
A) weight B) mass C) height D) velocity
Consider a two-slit interference experiment like the one shown in figure Q3.7b. The distance between adjacent bright spots in the interference pattern on the screen (A) increases, (B) decreases, or (C) remains the same if, The distance between the slits and the screen increases.
A. increases B. decreases C. remains the same
Two mechanical waves can occupy the same space at the same time because waves
a. are matter b. are displacements of matter c. do not cause interference patterns d. cannot pass through one another
Lunar eclipses last longer than solar eclipses because
a) the Moon is much farther from Earth during a lunar eclipse. b) the diameter of Earth is much greater than the diameter of the Moon. c) Earth's period of rotation is always greater during a lunar eclipse than during a solar eclipse. d) the lunar shadow is only a penumbra with no dark umbra region to extend the length of the eclipse.