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A satellite of mass320kg is in a circular orbit around the Earth at an altitude equal to the Earth's mean radius.
(a) Find the satellite's orbital speed.
m/s
(b) What is the period of its revolution?
min
(c) Calculate the gravitational force acting on it.
N
A rod of 2.0-m length and a square (2.0 mm × 2.0 mm) cross section is made of a material with a resistivity of 6.0 × 10-8 ? ? m. at what rate is heat generated in the rod
Compute magnitude of the average velocity
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A car is traveling at 15 m/s on a horizontal road. The coefficient of kinetic between the tires and road is
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