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a factory worker moves a 260kg crate a distance of 520malong a level floor at constant velocity by pushing horizontally
a 628 kg canoeist stands in the middle of her canoe the canoe is 33 m long and the end that is closest to land is 25 m
in a ballistics test a 25 g bullet traveling horizontally at 1200ms goes through a 30 cm thick 350 kgstationary target
a young hockey player stands at rest on the ice holding a 11 kg helmet the player tosses the helmet with a speed of 58
a 650 kg woman stands at the rim of ahorizontal turntable having a moment of inertia of 485 kgmiddotm2 and a radius of
a bowling ball is of radius11 and and mass 72 rolls from rest down an inclined plane of length21 the angle of incline
to protect their young in the nest peregrine falcons will fly into birds of prey such as ravens as highspeed in one
the 20 m stick weighs 60 n and is suspended by support cords ateach end a 40 n weight is hung 040m from the left end
a 270 ml soda can is 527 cm in diameter and has a mass of 234 g such a soda can half full of water is floating upright
if a communications satellite needs to be 36000 km above theequator how fast must it travel to remain at thatheighta
consider an airplanr wing area 20m2 if the airflow speed over the top of the wing is 200ms while the speed across the
a 15 kg block is dragged over a rough horizontal surface by a 70nforce acting at 20 degrees above the horizontal the
a 600 kg car is going around a curve with a radius of 120 m that isbanked at an angle of 250 degrees with a speed of
one of james bonds adversaries is standing on a frozen lake thereis no friction between his feet and the ice he throws
a catapult launches a rock at a 30 degree angle with respect to thehorizontal find the maximum height attained if the
two people start at the same place and walk around a circular lakein opposite directions one walks with an angular
shavingmakeup mirrors typically have one flat and one concavemagnifying surface you find that you can project a
the maximum wavelength for which an electomagnetic wave can eject electrons from a platinum surface is 196 nm when
a student on a piano stool is rotating freely with an angularspeed of 305 revs the student holds a 150 kg mass in
a 13 g projectile traveling 161 mspenetrates into a 025-kg wad of putty and emerges cleanly at37 msa if the putty is
a thermos contains 153 cm3 of coffee at 939 degc tocool the coffee you drop two 140-g ice cubes into the thermosthe ice
a satellite is placed in a circular orbit about earth with aradius equal to 51 the radius of the moons orbit what is
a golfer practices driving balls off acliff and into the water below the edge of the cliff is 15 m abovethe water if
find the magnitude of the impulse delivered to a football when aplayer kicks it with a force of 1275 nassume that the