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The mass of a newly discovered planet is 4.4 X 1025 kg. What must the radius of the planet be to have the same acceleration due to gravity as Earth?
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Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?
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Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
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The mass of a newly discovered planet is 4.4 X 1025 kg. What must the radius of the planet be to hav...
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