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a horizontal aluminum rod 4cm in diameter projects 52 cm froma wall a 1700kg object is suspended from the end of the
a 82 kg ice hockey player standing on a frictionless sheet ofice throws a bowling ball horizontally with a speed of
a solid square pinewood raft measures 44 m on a side and is 280 m thick what is the total mass of swimmers that the
if 500cm of copper wire diameter 10mm is formed into a circular loop and placed perpendicular to a uniform magnetic
light strikes a surface at an angle of 47 degrees the angleof refraction is measured to be 34 degrees what is the index
an ore sample weighs 1400 n inair when the sample is suspended by a light cord and totallyimmersed in water the tension
a barrel contains a 0100 m layerof oil floating on water that is 0390m deep the density of the oil is 600 kgm3a what is
a spherical balloon is made from a material whose mass is 233 kgthe thickness of the material is negligible compared to
a satellite is in a ciecular orbit 21000 km above the earths surface it moves on a circular path nder the influence of
a golfball rolls off a horizontal cliff with an initialspeed of 114 ms the ball falls a vertical distance of 155m intoa
your task in physics laboratory is tomake a microscope from two lenses one lens has a focal length of 24 cm the other12
a state trooper chases a speeder along astraight stretch of road both vehicles move at 155 kmh the siren on the
a 2 kg book rests on a frictionless horizontal surface acord attatched to the book passes over a pulley whose diameter
a rectangular prism of plastic rho600kgm3measuring 2cm x 2cm x 4cm is dropped into a bucket of gasolinerho700 kgm3 how
a hollow sphere of inner radius 72 cm and outer radius92 cm floats half-submerged in a liquid of density 900kgm3 what
the magnitude of the electrostatic force between two identicalions that are separated by a distance of 50x10 -10 m is
the fresh water behind a reservoir dam is 150 m deepa horizontal pipe 500 cm in diameter passes through the dam95 m
a massless spring with spring constant 20 nm hangsvertically a body of mass 03 kg is attached to its freeend and then
a person weighing 500 n climbs a ladder leaning against awall the ladder weighs 100 n and is 200 m long and is set at
an f-18 jet fighter flies directly overhead at a height of 18000mat 53 the speed of soundpart a make a diagram that
you are riding a bicycle at 150 ms toward a woman who is holdinga screaming baby you note that you hear the scream at a
the circuit in the drawing contains two resistors and twocapacitors that are connected to a battery via a switch when
if the electric potential is different from zero in some region of space can the electric field be zero in that same
a spaceship is moving toward earth at 6c it fires arocket away from the earth at 4c relative to the spaceship what is
the scale of a spring balance reading from zero to 200 n is125 cm long a fish hanging from the bottom of the