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a 450 kilogram schoolgirl is standing on a 135 kilogram plank the plank is originally at rest is free to slide on a
a block of mass 072 kilogram is suspended by a string which is wrapped therefore that it is at a radius of 0057 meter
a van travels due east with a speed of 550 kmh raindrops are falling at a constant speed vertically with respect to the
starship enterprise is orbiting planet qruqx iv mass 64 x 1024 kilogram radius 6400 kilometer at an altitude of 38000
a vehicle drives over the top of a hill that has a radius of 52 meter calculate what maximum speed can the vehicle have
a skier of mass 850 kilogram is pulled up a snow-covered slope at a constant speed by a tow rope that is parallel to
a 85 kilogram scaffold is 68 meter long it is hanging with two wires one from each end a 520 kilogram box sits 16 meter
the batteries in a portable cd player are recharged by a unit that plugs into a wall socket inside the unit is a
a 29 muf capacitor has a voltage of 52 volt between its plates determine what must be the current in a 45 mh inductor
an ideal carnot engine has an efficiency of 43 percent if it were possible to run it backward as a heat pump compute
an efficiency expert observing the motion of robotic welding arm in a factory requires to summarize the motion for a
traveling at a speed of 141 ms the driver of an car suddenly locks the wheels by slamming on the brakes the coefficient
a sphere is hung by a string from the ceiling of a van when the van is stationary the sphere hangs vertically however
a 930 kilogram race car can drive around an unbanked turn at a maximum speed of 62 ms without slipping the turn has a
a tennis player receives a shot with the ball 00600 kilogram traveling horizontally at 540 ms and returns the shot with
the front 120 meter of a 1300 kilogram van is designed as a crumple zone that collapses to absorb the shock of a
a day-care worker pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a
light of wavelength 390 nanometer is incident on a clean metal surface the metal has work function 260 ev find the
if the two particles with identical masses m collide with elasticity e 0650 determine what are the final velocities of
assume the coefficient of static friction between the tires and the road on a van is 0743 and the van has no negative
a high-speed railway car goes around a flat horizontal circle of radius 480 meter at a constant speed the magnitudes of
a downhill skier whose mass is 500 kilogram attains a speed of 210 ms just as he reaches the point where a jump is
a airplane model is being flown on a guideline that can sustain at most 180 newton of tension the mass of the plane is
a vehicle is safely negotiating an unbanked circular turn at a speed of 21 ms the maximum static frictional force acts
a mass-on-a-spring system has a spring constant k 372 nm and a mass m 056 kilograma if it is given an initial