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a 0365-kg blue bead slides on a frictionless curved wire starting from rest at point circle a in the figure below where
if a horse starts from rest and accelerates at the maximum value until reaching its top speed how far does it run to
two blocks slide on a horizontal frictionless surface with two springs on opposite sides block a has mass 114 kg and
a 826 kg crate slides on a horizontal surface the coefficient of kinetic friction between the surface and the crate is
a meter stick and a two-meter stick have the same thicknesses and density they are both placed upright and balancing on
europa a moon of jupiter has an orbital radius of 670 x108 m and a period of 355 days what is the mass of jupiter 1 day
a 40-kg bucket of bait attached to the end of a 75 m string is whirled around in a circular horizontal path if the
if mars orbital period is time for one orbit around the sun is 1886 earth years and the center of mars is 2279 x 1011 m
a ball with a mass of 10g is swung in a horizontal circular path on a string of length 05m if the balls speed is 45msa
a lantern slides down a driveway with an incline of 37 deg if the coefficient of kinetic friction is 20 what is the
when a beam of white light is incident vertically on a thin oil slick n 125 floating on water the only enhanced bright
starting from rest a 40-kg crate of cell phones reaches a horizontal speed of 80 ms in 20 s what is the net force
a block with a mass of 0148 kg is traveling at 84 ms on a horizontal frictionless surface when it hits a spring with a
two point charges q 10c are a distance 012 m apart calculate the electrostatic force on each
a 30 g steel ball bounces elastically on a steel plate always returning to the same maximum height h 142 ma what is
a child goes down a water slide and splashes into the water at the top the child has a speed of 4 ms the top of the
a constant retarding torque of 15 m-n stops a rolling wheel of diameter 090 m in a distance of 20 m how much work does
a diver can reduce her moment of inertia by a factor of 35 when changing from a straight position to the tuck position
a softball player swings a bat accelerating it from rest to 50 revs in a time of 025 seconds approximate the bat as a
a 0650 kg ice puck moving west with a speed of 50 m per second has a head-on collision with a 0957 kg puck initially at
two identical blocks are stacked one on top of the other the bottom block is free to slide across a frictionless
n 324 mol of hydrogen gas is initially at t 357 k temperature and pi 279times105 pa pressure the gas is then
the emissivity of the human skin is 970 percent use 350 degc for the skin temperature and approximate the human body by
a geological survey ship mapping the floor of the ocean sends sound pulses down from the surface and measures the time
an ideal refrigerator does 140 j of work to remove 585 j of heat from its cold compartment during each cycle what is