suppose that the earth had grown to a large enough mass of rock and metal that it was able to retain hydrogen and helium gas from the solar nebula. approximately how many times greater would the mass of the earth be if it had retained these light gasses, in addition to the materials that make up its current composition, all in the same proportions that they are found in the solar nebula

Question 9: use your experiences from questions 6, 7, and 8 to you state a general rule for identifying the three declination ranges given the observer's latitude.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.