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a 9960 lb rocket is launched straight up starting at rest the thrust force pushing the rocket upward is 20000 lb air
a boeing 747 jet with a wingspan of 600 m is flying horizontally at a speed of 295 ms over phoenix arizona at a
a point charge of 6 muc is located at x minus2 cm and a second point charge of minus8 muc is located at x 1 cm where
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a sealed chamber totally submerged is anchored to the ocean floor if the chamber has a mass of 25 x 1407 kg and a
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unpolarized light passes through two polaroid sheets the transmission axis of the analyzer builds an angle of 458deg
a possible means for making an airplane invisible to radar is to coat the plane with an antireflective polymer if radar
in a location where the speed of sound is 354 ms a 2000 hz sound wave impinges on two slits 30cm aparta at what angle
a rocket is accelerated to speed 37400 ms near earths surface where earths radius is re 6370 km and it then coasts
in a quarter-mile drag race two cars start simultaneously from rest and every accelerates at a constant rate until it
a 24-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling the elastic
a 48 m diameter merry-go-round is rotating freely with an angular velocity of 0725 rads its total moment of inertia is
a hollow thin-walled cylinder and a solid sphere start from rest and roll without slipping down an inclined plane of