Sun orbits at roughly 26,000 ly from the center of the galaxy and takes 225 million years to make one orbit. i: at what speed does sun revolve around the center of the galaxy? (give your answer in km/s; show all work.) ii: what is the circumference of sun's orbit if we consider its orbit to be circular? iii: what is the mass of the galaxy within sun's orbit?
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Physics, 22.06.2019 05:00
At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.
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A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
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Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
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Sun orbits at roughly 26,000 ly from the center of the galaxy and takes 225 million years to make on...
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