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What is the frequency of a wave if the speed of the wave is 7.9m/s and the wavelength is 3.1m?
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The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
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Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?
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What is the frequency of a wave if the speed of the wave is 7.9m/s and the wavelength is 3.1m?...
Mathematics, 12.04.2021 22:30
Mathematics, 12.04.2021 22:30