Distance from the center of the earth
John Glenn weighed 640 N on earth's surface. How much would he have weighed if his mercury spacecraft had remained at twice the distance from the center of the earth? WHy is it said that an astronaut is never truly "weightless"?
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Two parallel plates, each with an area of 110 , are given equal and opposite charges of magnitude 0.180. The space between the plates is filled with a dielectric material, and the electric field within the dielectric is 0.310.
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The discussion questions on my textbook. Animal behavior, an evolutionary approach by john alcock.
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Planet Z is 8,000 km in diameter. The acceleration due to gravity on Planet Z is 7.0 m/s2. What is the acceleration due to gravity 10,000 km above Planet Z's north pole?
A Cessna aircraft has a liftoff speed of 120 km/h. (a) What minimum constant acceleration does the aircraft require if it is to be airborne after a takeoff run of 300 m?
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