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A 950-kg satellite orbits the Earth at a constant altitude of 105-km.
(a) How much energy must be added to the system to move the satellite into a circular orbit with altitude 207 km?
(b) What is the change in the system's kinetic energy?
(c) What is the change in the system's potential energy?
The range of human hearing is roughly from twenty hertz to twenty kilohertz. what are the lengths of the longest and shortest pipes
Cars A and B are traveling around the circular race track. At the instant shown, A has a speed of 78ft/s, Determine the relative acceleration of car A with respect to car B at this instant
Assume the bat is a wooden rod of uniform diameter and take the pivot point to be in the middle of the bat, at the end of the bat, Calculate the moment of inertia of a baseball bat
The electron beam inside a television picture tube is 0.300mm in diameter and carries a current of 55.0 uA. What is the current density in the electron beam
What thickness of board (calculated to 0.1 cm) would it take to stop the bullet, suppose that the acceleration through all boards is the same.
The distance from the human eye lens system and the retina is typically 19.0 mm. What is the focal length of the eye lens system for a relaxed eye
Iced tea is made by adding ice to 2.4 kg of hot tea, initially at 70?C. How many kg of ice, initially at 0?C, are required to bring the mixture to 10?C? (Lf = 3.33×105 J/kg, cw = 4,186 J/kg•? C)
One of the Niagara turbines uses 172,000 cubic feet of water perminute under a head of 215 ft. What is the horsepower developed
The maximum torque experienced by a coil in a 0.80 T magnetic field is 8.4 10-4 N · m. What is the length of the wire from which the coil is made
A light wave travels from point A to point B in vacuum. hat is the difference between the number of waves between A and B with and without the glass plate in place
A wrecking ball (weight = 4600 N) is supported by a boom, which might be assumed to be uniform and has a weight of 3600N. As the drawing shows, a support cable runs from the top of the boom to the tractor. The angle between the support cable and t..
A steel aircraft carrier is 364m long when moving through the icy North Atlantic at a temperature of 2.4°C. By how much does the carrier lengthen as it is traveling in the warm Mediterranean Sea at a temperature of 21° C.
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