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A satellite weighing 500 kg is in a circular orbit around the earth. It takes exactly 3 hours to go around the earth.
a) How far above the surface of the earth is this orbit?
b) What is the force of gravity on this satellite?
A pair of oppositely charged parallel plates is separated by 5.44 mm. A potential di?erence of 631 V exists between the plates. What is the strength of the electric field between the plates
The average temperature in Gunnison for the first two months of the year are: 1) January (31 days) 10°F 2) February (28 days) 15° F. What are the total number of degree days for Gunnison over these two months?
A spinning flywheel has rotational inertia I = 401.0 kg · m2. Its angular velocity decreases from 20.4 rad/s to zero in 261.6 s due to friction
A 48.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.44 102 m/s from the top of a cliff 152 m above level ground, How much work has been done on the projectile by air friction
Photorefractive keratectomy (PRK) is a laser-based surgery process that corrects near- and farsightedness by removing part of the lens of the eye to change its curvature and hence focal length. What is the energy of a single photon
Calculate the location of the center of mass of the earth-moon system (that is, find the distance of the center of mass from the earth's center)
An electron moving along x axis with a constant speed of v = 5x10^6 m/s i enters the region of a uniform electric field, What is the verticle displacement y of the electron 4 ns later
A 2.1 kg solid sphere ( I= 0.4mR2 ) rolls along a horizontal surface with a speed of 7.8 m/s. What is the total kinetic energy of the sphere
Two rockets approach earth from opposite directions at equal speeds relative to the earth. How fast are the rockets moving with respect to the earth
A 0.550 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
A 150 kg rock (density is 2500 kg/m 3 ) is dropped to a lake. Determine how much force the man needs to life the rock from the bottom of the lake
Two point charges lie on the x-axis: 1.80uC at x=1.15m, Find the place(s) where the electric field is zero
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