The circular velocity of a satellite orbiting Earth is given by . In this equation, M represents the ____
a. mass of the satellite, and r its radius
b. mass of the satellite, and r the distance from Earth to the satellite
c. mass of the satellite, and r the distance from Earth's surface to the satellite
d. mass of Earth, and r the radius of Earth
e. mass of Earth, and r is the distance from Earth to the satellite
e
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Briefly explain what we mean by the statement "The farther away we look in distance, the further back we look in time."
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Is peak nucleate boiling a stable boiling condition?
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The cluster of galaxies that includes our Milky Way is called the ______________
Fill in the blank(s) with correct word
What happens when a star exhausts its core hydrogen supply?
A) Its core contracts, but its outer layers expand and the star becomes bigger and brighter. B) It contracts, becoming smaller and dimmer. C) It contracts, becoming hotter and brighter. D) It expands, becoming bigger but dimmer. E) Its core contracts, but its outer layers expand and the star becomes bigger but cooler and therefore remains at the same brightness.