Part A Calculate the orbital period of a satellite that orbits at three Earth radi above the surface of the Earth.
Express your answer to three significant figures and include appropriate units.
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Part B
If the Earth suddenly became more massive while the satellite remains in circular orbit at the same altitude, will the orbital period increase, decrease, or remain the same ?
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Part C
Calculate the orbital period of the satellite if the Earth's mass were to double to 1.194 x 10^25kg and everything else were to remain the same.
Express your answer to three significant figures and include appropriate units.

When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.

In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?

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