The ratio of average densities, ρ Moon / ρ Earth .

Question

Suppose a lump of ionized matter orbits a black hole with a period of 3.50 ms and an orbital radius of 140 km. What is the mass of the black hole? The mass of the sun is Ms = 1.99 x10^30 kg. (Give your answer in terms of the solar mass.) A projectile is launched directly upward from the surface of the Earth with an initial speed of 7.1 km/s. Assuming air resistance is negligible, what is the maximum height of the projectile (in m)?

Answer 1

Question

Chapter 11, Problem 7P

To determine

The ratio of average densities, ρMoon/ρEarth.

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