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a 056 kg block is hung from and stretches a spring that is attached to the ceiling a second block is attached to the
the turntable in a microwave oven has a moment of inertia of 006 kg meters squared and is rotating once every 401 s
a ten pound car wheel has a moment of inertia of 038 kg m2 while rotating at a constant speed the wheel makes 6796
spark plugs should be tightened to a specified torque of 1364nm you have a wrench that is 027 m long but because of the
a small steel ball bearing with a mass of 170 g is on a short compressed spring when aimed vertically and suddenly
one end of an insulated metal rod is maintained at 100 while the other end is maintained at 0 by an ice-water mixture
a mass m05kg is hung from a pulley with moment of inertiai020 kgm2 and radius r10cm there is frictionin the pulley the
a horizontal force of 80 n acts on a mass of 6 kg resting on a horizontal surface the mass is initially at rest and
a styrofoam bucket of negligible mass contains 175 of water and 0450 of ice more ice from a refrigerator at -140 is
a star is 494 times 1020 m from the earth if this star was to burn out today how many years would it take before we
suppose a hockey puck slides down a frictionless ramp with an acceleration of 500 ms2awhat angle does the ramp make
a copper pot with a mass of 0505 contains 0175 of water and both are at a temperature of 210 a 0255 block of iron at
an egg with a mass of 40 grams is on a table of 1 meter high it falls and breaks if the collision with the ground is
a laser beam is incident at an angle of 440deg to the vertical onto a solution of corn syrup in watera if the beam is
a blacksmith cools a 130- chunk of iron initially at a temperature of 6500 by trickling 156 water over it all the water
a plastic light pipe has an index of refraction of 153 for total internal reflection what is the minimum angle of
the light emitted by a helium-neon laser has a wavelength of 6328 nm in air as the light travels from air into fused
an 8-m-long beam weighing 14700 n is hinged to a wall and supported by a light rope that is attached 20 m from the free
through what angle in degrees does a 33 rpm record turn in 025 s if the diameter of the record is 12 inches what is the
a river 240 m wide and 50 m deep drains a 30000 km2 land area in which the average precipitation is 48 cmyear
a 0045kg ball is propelled by a 215kg racquet from rest to a speed of 500ms if the two objects are in contact for 220ms
a large grinding wheel in the shape of a solid cylinder of radius 0330 m is free to rotate on a frictionless vertical
a 160-n sphere 020 m in radius rolls without slipping 60 m down a ramp that is inclined at 25deg with the horizontal
the index of refraction for red light in water is 1331 and that for blue light is 1340 if a ray of white light enters