Physics, 08.08.2019 21:20 chrisraptorofficial
Once again in this chapter, we see the use of kepler’s third law to estimate the mass of supermassive black holes. in the case of ngc 4261, this chapter supplied the result of the calculation of the mass of the black hole in ngc 4261. in order to get this answer, astronomers had to measure the velocity of particles in the ring of dust and gas that surrounds the black hole. how high were these velocities? turn kepler’s third law around and use the information given in this chapter about the galaxy ngc 4261—the mass of the black hole at its center and the diameter of the surrounding ring of dust and gas—to calculate how long it would take a dust particle in the ring to complete a single orbit around the black hole. assume that the only force acting on the dust particle is the gravitational force exerted by the black hole. calculate the velocity of the dust particle in km/s.
Answers: 3
Physics, 22.06.2019 04:30
Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?
Answers: 3
Physics, 22.06.2019 04:40
Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.
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Physics, 22.06.2019 14:30
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Physics, 22.06.2019 14:30
70 give a real life example showing how sensory neurons work with the motor neurons
Answers: 2
Once again in this chapter, we see the use of kepler’s third law to estimate the mass of supermassiv...
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