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a round wooden log with a diameter of 85 cm floats with 18of its radius out of the water what is the logs
a beam of electrons is accelerated through a potential difference of 10kv before entering a velocity selector if the
a 1-kg steel ball and a 2-m cord of negligible mass make up asimple pendulum that can pivot without friction about a
a 180 nsphere 020 m in radius rolls without slipping 60 m down a rampthat is inclined at 34deg with thehorizontal what
a child operating a radio-controlled model car on a dock accidentally steers it off the edge the cars displacement 082
the electric field in a cathode ray tube is supposed to accelerateelectrons from 0 to 320107 ms in a distanceof 300 cm
a determine the magnetic moment due to a wireloop 13cm x 15cm that carries a current of 200 ma and is situatedin a
a skateboarder shoots off a ramp with a velocity of 58 msdirected at an angle of 54deg above the horizontal the end
a 500-g ball moves at 300 ms if its speed is measured to anaccuracy of 010 what is the minimum uncertainty in its
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