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a student throws a set of keys vertically upward to her sorority sister who is innbsp a window 400m above the second
consider a mass spectrometer used to separate the two is otopes of uranium 238u3 and 235u3 assume the ions enter the
why does air circulate from a point with less pressure towards one with more pressure we have a tunnel and on one side
a block of mass m slides at velocity vo across ahorizontal frictionless surface toward a large curved movable rampof
two long straight wires are parallel and 78 cm apart theyare to carry equal currents such that the magnetic field at a
a 10-kg body is force against a horizontal elastic spring compressing it an amount of 05 meter when the body was
the maximum compressional stress that a bone can withstand is 16 x108 nm 2 before it breaks a thighbone femur which is
a barbers chair with a person in it weighs 2100n the output plunger of a hydraulic system begins to lift the chair when
a meat baster consists of a squeeze bulb attached to a plastic tube when the bulb is squeezed and released with the
a cylindrical storage tank has a radius of 122m when filled to a height of 371m it holds 14 300 kg of a liquid
a simple pendulum is made from a 051 mlong string and a small ball attached to its free end the ball ispulled to one
capacitors c1 40 microf andc2 20 microf are charged as aseries combination across a 60 v batterythe two capacitors
consider an rc circuit in which the capacitor is beingcharged by a battery connected in the circuit after a time
a magnetic field is perpendicular to the plane of a single-turncircular coil the magnitude of the field is changing so
one of the new events in the 2002 winter olympics was thesport of skeleton starting at the top of a steep icy tracka
a 5-a current is maintained in a simple circuit that consistsof a resistor between the terminals of an idealbattery
high speed stroboscopic photographs show that the head of a200 g golf club is traveling at 55 ms just before it strikes
the earth circumference is 4107 m and the mooncircumference is 27 as large the moon mass is 123 of the earthmass using
a 9500 kg boxcar traveling at 16 ms strikes a second car the two stick together and move off with a speed of 60 ms what
a 150 kg water balloon is shot straight up with an initialspeed of 500 msa what is the kinetic energy of the balloon
a in 1975 the roof of montreals velodrome with a weight of360 kn was lifted by 10 cm so that it could be cetered how
a floating ice block is pushed through a displacement vector d 15 mi - 12 mj along a straight embankment by rushing
a 870-kg man is riding an escalator in a shopping mallthe escalator moves the man at a constant velocity from
the space shuttle releases a satelliteinto a circular orbit 640 km above the earth how fast must the shuttle be moving
if the inner accretion disk around a black hole has atemperature of 106 k at what wavelength will it radiate the most