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a pair of speakers separated by 0700m are driven by the same oscillator at a frequency of 658 hz an observer originally
the spacing between certain planes in a crystal is known to be 030nm find the smallest angle of incidence at which
a 10 n force is applied to a wheel with a radius of 3 cmcausing an acceleration of 12 rads2 what is the rotational of
a 33 kg block initially in motion is pushed along ahorizontal floor by a force f of magnitude 17 n at an angle
a student who weighs 500 n climbed the stairs from the firstfloor to the third floor 15 m above in 20 seca how much
a cart with a mass 340g moving on frictionless linear airtrack at an intial speed od 102ms undergoes an
two buckets of sand hang from opposite ends of a rope thatpasses over an ideal pulley one bucket is full and weighs 120
a 520 g bullet moving at 672 ms strikes a 700g wooden blockat rest on a frictionless surface the bullet emerges
a lumberjack mass 98 kg is standing at rest on one end of afloating log mass 290 kgthat is also at rest the
a scuba diver releases a 350 cmdiameter spherical bubble of air from a depth of 100 m in alake assume the temperature
a brass lidscrews tightly onto a glass jar at 20degc to help open the jarit can be placed into a bath of hot water
a 40kg mess kit sliding on a frictionless surfaceexplodes into two 20gk parts one moving at 30ms due north andthe other
a water tank filled with water to the brim has a hole in itsside 30 meters down from the top the area of the hole is008
a microwave oven operating at 25 ghz has a power output of500 wa what is the wavelength of the microwavesb what is the
what is the minimum energy in electron voltsthat is required to remove the electron from the ground state of anionized
a helicopter starting from restaccelerates straight up from the roof of a hospital the liftingforce does work in
suppose you have a solution that might contain any of the following cations ni2 hg fe3 and ca2 addition of excess hcl
a laser is used in eye surgery to weld a detached retina back intoplace the wavelength of the laser beam is 514 nm
a skateboarder shoots off a ramp with a velocity of 58 msdirected at an angle of 54deg above the horizontal the end
a 1 kw radio transmitter operates at a frequency of 880khz how many photons per second does it
how many moles of ba and cl are contained in 1070g of baclo42bull3h2o how many molecules of water hydration are in this
a proud deep-sea fisherman hangs a 650 kg fish from anideal spring having negligible mass the fish stretches thespring
if your body is emitting infrared radiation of wavekenght 94x 10-6 m what is the energy of the released
a nuclear power plant has a reactor that produces heat at the rate of 838mw this heat is used to produce 253mw of
a steel ball of mass 0840 kg is fastened to a cord that is 750 cmlong and fixed at the far end the ball is then