Would the investigator be able to survive visiting even 876 km from the center? Answer this by finding the difference in the gravitational attraction (in N) the black hole exerts on a 1.0 kg mass at the head and at the feet of the investigator.
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If the Sun were to collapse into a black hole, the point of no return for an investigator would be approximately 3 km from the center singularity. Would the investigator be able to survive visiting even 876 km from the center? Answer this by finding the difference in the gravitational attraction (in N) the black hole exerts on a 1.0 kg mass at the head and at the feet of the investigator. (Assume the investigator is about 2 m tall and is oriented radially with respect to the black hole. Enter the magnitude.)
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- Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This statement implies that the masses of the two stars are equal (see figure below). Assume the orbital speed of each star is V = 240 km/s and the orbital period of each is 12.1 days. Find the mass M of each star. (For comparison, the mass of our Sun is 1.99 x 1030 kg.) solar masses XCM MA narrow hole is drilled through the centre of a uniform sphere of mass M and radius a. Find the gravitational force exerted on a particle of mass m which is inside the hole at a distance r from the centre.Suppose you are in a circular orbit above the moon Rhea with a radius of 824.7 km, and you have 154.4 m/s of delta V. Suppose you put all your delta V to go into an elliptical orbit, what is the semi-major axis of this elliptical orbit assuming the mass of Rhea is 2.3065 ×1021 kg and you can ignore the gravitational effects of Saturn?