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a ladder 230 m long weighing 226 n initially lies flat on the ground the ladder is raised to a vertical position
you ski straight down a 434deg slope starting from rest and traveling a distance of 103 m along the slope find your
the driver of a 1350 kg car initially traveling at 121 ms applies the brakes bringing the car to rest in a distance of
suppose you carry a bag of groceries weighing 100 n from your car to your kitchen a distance of 61 m without raising or
200 ml of water at 200 c is placed in the freezer compartment of a refrigerator with a coefficient of performance of
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
the resistivity of the body is a good measure of its overall composition a measure of the resistance of the upper arm
the power output of a car engine running at 2900 rpm is 300 kwa how much work is done per cycle if the engines thermal
two particles each weigh 103 n find the magnitude of their mutual gravitational force when they are separated by a
the average distance of the planet mercury from the sun is 039 times the average distance of the earth from the sun how
a sprinter of mass 728 kg runs at a constant speed of 108 ms in a straight line find the extra force the sprinter must
a 103 kg mass is attached to a spring of force constant 110 ncm and placed on a frictionless surface by how much will
a small package rests on the horizontal dashboard of a car if s 0275 what is the minimum acceleration of the car that
a 100kg mass is on an inclined plane of 30 degrees its connected to a second unknown mass that hangs over a
a 66kg rock climber is climbing a so called chimney between two rock slabs as shown in the figure the static
a motorcycle moves in a flat circular path of radius r on a surface with a coefficient of kenetic friction of 025 and a
you are holding a bulletin board weighing 910 n in place against a wall while your friend secures it to the wall to
inductive battery chargers which allow transfer of electrical power without the need for exposed electrical contacts
when is there no work on an object for example a weightlifter picks up a weight or a kid wearing skates pushes of a
a small 110 g- bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table the
the flip-flap railway in coney island one of the first loop-the-loop roller coasters had a loop of diameter 762 meters
the orbital speed of a planet about its star is 28 104 ms and its distance from the star is 16 1011 m the mass of the
a 300 kg rock slides on a rough horizontal surface at 750 ms and eventually stops due to friction the coefficient of
a turntable reaches an angular speed of 450 rpm in 19 s starting from resta assuming the angular acceleration is
a total charge of 14 mc passes through a cross-sectional area of a nichrome wire in 28 sa what is the current in the