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a 23 kg girl is standing on a 20 kg cart on a frictionless surface she is at rest she then throws a heavy 89 kg rock
1 according to faradays law of induction the magnitude of the induced emf in a circuit equals the absolute value of the
a 225 omega resistor connected across a 60 cycle ac power supply of voltage amplitude 60 v produces heat in the
225 moles n225 of a monoatomic gamma 167 ideal gas starting at state a is heated isovolumically until its pressure is
how much energy does it take to move a 359 kg satellite from an orbit 470 km above the earths surface to an orbit 760
the left side of the heart creates a pressure of 120 mm hg by exerting a force directly on the blood over an effective
the 22-cm-diameter disk in the figure below can rotate on an axle through its center what is the net torque about the
a 215 kg weather balloon is designed to lift a 2100 kg package what volume should the balloon have after being inflated
the 210po source used in a physics laboratory is labeled as having an activity of 100 microci on the date it was
your strange physics professor builds an unusual scale by hanging an object from a 20m long wire attached to the
a 20g 12cm long wire is suspended horizontally between the poles of a horseshoe magnet when the 051a current in the
1 the diagram shows a 012-kg square block at four positions along a track the track is frictionless between points a
if during strenuous exercise your heart rate is 145 beats per minute determine the followinga the frequency of your
during a strenuous period of extravehicular activity an astronaut generates 20 mj of heat per hour which must be
a 200kg stone is tied to a thin light wire wrapped around the outer edge of the uniform 900kg cylindrical pulley shown
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in 2005 dr margo lillie and her student tracy boechler published a study claiming that cow-tipping the act of knocking
question 1-3 a cannon fires a 2 kg cannonball horizontally off a 100-meters tall cliff with an initial velocity of 40
a 2004 prius with a 150-lb driver and no passengers weighs 3071 lb the car is initially at rest starting at t 0 a net
a 2000kg tractor is pulling a trailer filled with corn down the road the trailer has a single axle and is roughly 2m
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a 200 mol sample of a diatomic ideal gas expands slowly and adiabatically from a pressure of 5056 x 105 pascals and a
a 200-m -long uniform beam weighing 640 n rests on walls a and b as shown in the figurepart afind the forces that the
a top-secret us military satellite is in geostationary around the earth satellites in geostationary orbit always to be
a toroid is made with 2650 turns of wire the inner radius is 113 cm the outer radius is 141 cm what is the magnetic