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blocks with masses of 30kg 80kg and 90kg are lined up in a rowon a frictionless table all three are pushed forward by
a charge q is distributed uniformly around a thin ring ofradius r the ring is rotating about an axis through its center
a coil is wrapped with 200 turns of wire on a square frame withsides 18 cm a uniform magnetic field is applied
a mirror at an amusement park shows an upright image of any person who stands 14 m in front of it if the image is three
a hollow spherical conductor carrying a net charge q has inner radius r1 and outer radius r2 2r1 at the center of the
a block of cheese has a mass of 20 kg is at rest on the floor thisblock is then pushed by a horizontal force of 8 n
a 600 m long uniform rod is hinged at one end the rod isinitially held in a horizontal position and then released as
what would be the required internal diameter of a fluid conductor assuming no friction losses if the conductor willbe
an x-ray with wavelength 18 nm is emitted when an l shell electron makes a transition to the k shell what is the
determine the length of time in seconds that it would take tofully extend a hydraulic cylinder with a bore of 5 inches
a polymer molcule is 305mu m long the ends of themoleculebecome singly ionized-negative on end end positive on theother
an impulse of150 ns is required to stop a persons head in a carcollision if the face is in contact with the steering
if you see the displayed waveform on an oscilloscope screengiven that voltage scale is 50 millivoltdivision and the
two small containers each with a volume of 100cm3 contain helium gas at 0oc and 100atmpressure the two containers are
a flat coil enclosing an area of 010m2 is rotating at 60revs whit its axis of rotationperpendicular to a 020-t magnetic
a test is fired stright up from rest with a net acceleration of20ms2 after 4 seconds the motor turns off but the rocket
light of wavelength 590nm passes throughtwo narrow slits 060 mm apart the screen is 170 maway a second source of
during a lunar landing mission the command module continuesto orbit the moon at an altitude of about 95 km how long
the 300 kg cube has edge lengths d 600 cm and is mounted on an axle through its center a spring k1200 nm connects the
a science student is riding on a flatcar of a train travelling along a straight horizontal track at a constant speed of
a raft is constructed of woodhaving a density of 6262kgm3 the surface area of the bottom of the raft is63 m2 and the
a 2762 kg van runs into the back of a 931 kg compact car atrest they move off together at 62 ms assuming nofricition
a hypodermic syringe contains a medicine with the density ofwater the barrel of the syringe has a cross-sectional area
questiona ping-pong ball has been electrostatically charged such that it has 25 x 1015 excess electrons the ball has a