True or False: A photon is reflected from a mirror. Although the photon has energy, it can't transfer any energy to the surface because it has zero mass
1.True
2.False
2
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Imagine another solar system, with a star of the same mass as the Sun. Suppose there is a planet in that solar system with a mass of 2MEarth orbiting at a distance of 1 AU from the star
What (approximately) is the orbital period of this planet? Explain your answer.
What can contribute to a planet losing its atmosphere?
A) thermal escape B) large impacts C) solar wind stripping D) all of these
Ice crystals in nearly frozen liquid water make up a
A) microscopic slush. B) region of lower density. C) both of these D) neither of these
A toy is 14 cm in front of a convex spherical mirror. If the image of the toy is 5.8 cm behind the mirror, what is the focal length of the mirror?
A) -4.1 cm B) +20 cm C) -9.9 cm D) -20 cm E) +9.9 cm