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an electric fan is turned off and its angular velocity decreases uniformly from 500 revmin to 200 revmin in a time
a weight lifter raises a 1093 n weight a vertical distance of 160 m in a time interval of 205 s compute the power
a spring with a force constant of 1645 nm is compressed 111 cm find the work done by the force compressing the
at the intersection of texas avenue and university drive a yellow subcompact car with mass 950 kg traveling east on
force of a baseball swing a baseball has mass 0145 kga if the velocity of a pitched ball has a magnitude of 450 ms and
man pulls a block of mass m 15 kg up an incline at a slow constant velocity for a distance of d 45 m the incline
a solid uniform sphere of mass 20 kg and radius 17 m rolls without slipping down an inclined plane of height 67 m what
a golf ball of mass 05 kg is at rest on the tee and has a velocity of 102 ms immediately after being struck if the club
suppose that a 100 cm3 box in the shape of a cube is perfectly evacuated except for a single particle of mass 121 10-3
a container of cross-sectional area 102 cm2 contains liquid of density 150 gcm3 to a height of 590 cm above a small
a a 110 kg mass is at the center of a uniform spherical shell of mass 109 1020 kg and radius 105 106 m find the
suppose you carry a bag of groceries weighing 100 n from your car to your kitchen a distance of 61 m without raising or
two blocks each of mass m 24 kg are pushed along the horizontal surface of a table by a horizontal force p of
a 850-kg block of ice released from rest at the top of a 141--long frictionless ramp slides downhill reaching a speed
starting from rest a car travels 1 350 meters in 100 minute it accelerated at 10 ms2 until it reached its cruising
two newly discovered planets follow circular orbits around a star in a distant part of the galaxy the orbital speeds of
a jet plane is flying with a constant speed along a straight line at an angle of 300 above the horizontal the plane has
a 90 kg bowling ball races down the lane at 15 ms before striking a bowling pin at rest with a mass of 85 kg if the 85
a 230 kg baseball is thrown with a speed of 41 ms what is the balls momentumif the above ball comes to rest in the
an archer lines up an arrow on the horizontal exactly dead center on a target she releases the arrow and it strikes the
in the railroad freight yard an empty freight car of massmrolls along a straight level track at10ms and collides with
a boy of mass 608 kg is rescued from a hotel fire by leaping into a firefighters net the window from which he leapt was
a girl is using a rope to pull a box that has mass of 30kg across a level surface with constant velocity the rope makes
a load of weight w is suspended from a cable of length l on a construction vehicle it all moves along horizontally at a
a 10-kg projectile launched over level ground has three times the kinetic energy at the moment of its launch as it does