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a playground merry-go-round of radius r 220 m has a moment of inertia i 235 kg middot m2 and is rotating at 120
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find the de broglie wavelength for an electron moving at a speed of 100times106ms note that this speed is low enough
a compute the rms speed of a nitrogen molecule at 360acircdegcb at what temperature will the rms speed be half that
after a 0838 nm x-ray photon scatters from a free electron the electron recoils with a speed equal to 149e6 ms what was
calculate the force on a 1 meter long length of wire carrying a 5 amp current in a magnetic field of 75 teslas that act
1 a vessel contains 32 grams of dry ice solid carbon dioxide at t -78degc the temperature where it transitions between
suppose you could pack neutrons mass 167 times 10-27 kg inside a small ball of radius 0026 m in the same way as
a pendulum with a pendulum length of 125 m undergoing shm of mass 250g just released from an angel of 7 to the
a solid disk of radius 920cm and mass 115kg which is rolling at a speed of 230ms begins rolling without slipping up a
a sample of a radioactive isotope is measured to have an activity of 2371 mciif the sample has a half-life of 12 days
an automobile tire has a volume of 00185 m3 if the pressure in the tire is 500 kpa and the temperature is 298 k how
how man electrons are present in a 15c charge determine the mass of the 15 c charge 1e91x10-31kg if this charge moves
steam at 1200 degrees f has a specific volume of 00963 ft3lbm estimate the pressure of steam at this state usinga the
a 2-m-long 02-m-diameter cylindrical pine log density 513kgm3 is suspended by a crane in the horizontal position the
1 you can hear beats when two tuning forks are sounded together the tuning forks have labels showing them to be 242 hz
a 110 volt hair dryer has 2 settings 850 watts and 1250 wattsa at what setting would you expect the highest resistanceb
when attaching a mass of 50g on a force table at 90 degrees and an unknown mass at 0 degrees you get an equilibrant
a spaceship approaching earth at 070 c fires a particle beam toward earth with speed 076 c relative to the shipat what
a tsunami a tidal wave of of wavelength 48 105 m travel at 200ms in the open ocean determine the time between two
a 600 kg mass m is suspended from a 65 kg flywheel having a radius of 075 m determine the angular acceleration of the
a uniform rod of length 49m and mass of 82 kg is free to rotate about a frictionless pivot at one end in a vertical
a 080m -long metal rod is dropped vertically onto a marble floor when the rod strikes the floor it is determined
a uniform solid disk of mass m 304 kg and radius r 0200 m rotates about a fixed axis perpendicular to its face with
youre viewing a pair of green wavelength550nm butterflies on a tree branch its mid-day so its bright outside and your