How long in s would it take parcel to revolve

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Reference no: EM1389069

Q. Presume a spherical planet P has a uniform density of 4.72 x 10^3 kg/m^3 and a radius R = 3604km. For a parcel that weighs 64N on the surface of the spherical Earth, what is a)gP/gE, b) its weight on the surface P? Using the "tunnel mail" system what is the delivery time in seconds to the opposite side of P d) what is the highest velocity of the parcel in the tunnel? e) What least velocity has to be given to the parcel to escape from the surface of P? At a circular orbit radius of 4.72R, what would the parcel's f) potential energy and g) total energy be? h) How long in s would it take parcel to revolve about P in this orbit?

Reference no: EM1389069

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