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What is the kinetic energy of a 10-kg bicycle moving at 10 m/s
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Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.
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If a simple machine reduces the strength of a force, what must be increased?
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The doctor lands his tardis on a planet whose radius is 1.2x10^7m the acceleration due to gravity is 18m/s^2. what is the mass of the planet
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Why do cells have receptors? Receptors make mRNA. Receptors let the cell know when to let things in...
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