Acommunications satellite with a mass of 420 kg is in a circular orbit about the earth. the radius of the orbit is 2.9×10^4 km as measured from the center of the earth. calculate (a) the weight of the satelitte on the surface of the earth and (b) the gravitational force exerted on the satellite by the earth when it is in orbit.
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Physics, 21.06.2019 17:20
An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?
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Physics, 22.06.2019 13:40
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th
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Physics, 22.06.2019 16:20
Select the correct answer. what does the process of natural selection involve?
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Acommunications satellite with a mass of 420 kg is in a circular orbit about the earth. the radius o...
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