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an elevator has mass 740 kg notincluding passengers the elevator is designed to ascend atconstant speed a vertical
what is n in the born expression for the non coulomb repulsion energy what are typical values for
the source of a sound wave has a power of 220 microw assume it is a point sourcea what is the intensity 220 m awaywm2b
the gap between electrodes in a spark plug is 600 10-2cm in order to produce an electric spark in a
a 049 kg object connected to alight spring with a force constant of 248 nm oscillates on a frictionless
can the grignard reaction be used to convert 1-bromoethylbenzene to methylphenylketone explain propose an alternative
the heaviest and lightest strings on a certain violin have linear densities of 30 and 029 gm what is the ratio of the
if 870 gm of nacl 416 gm of kmno4 and 1000 gm of h2so4 are mixed which reagent is the limiting
three equal point charges each with charge 145 muc are placed at the vertices of an equilateral triangle whose sides
a good baseball pitcher can throw a baseball toward homeplate at 85mih with a spin of 1800revmin how many revolutions
during a particular thunderstorm the electric potential differencebetween a cloud and the ground is vcloud -vground
hulk jumps a total distance of 102m and reaches a maximumheight of 52m what was his initial velocity both magnitude and
what is the madelung constant why can the same madelung constant be used for seemingly different
a free electron has a wave function psi xasin51010x where x is measured in m find a the electrons de broglie wavelength
before beginning a long trip on ahot day a driver inflates an automobile tire to a gauge pressureof 260atm at 300 k at
the electric field between the plates of a parallel-plate capacitoris horizontal uniform and has a magnitude e a
ground and cloud the electric potential differencebetween the ground and a cloud in a particular thunderstorm is25
identical point charges of 26 microc are fixed tothree of the four corners of a square what is themagnitude q of the
a 76-kg ice hockey player standing on a frictionless sheet ofice throws a 56-kg bowling ball horizontally a fan in the
a planets moon travels in an approximately circular orbit ofradius 74 107 m with a periodof 6 h 9 min calculate the
a dog on a merry-go-round undergoes a 12 ms2 linearacceleration if the merry-go-rounds angular acceleration is 63rads2
the force applied to the cart in question a by springscale f1 is still 1225 n the cart now moves toward the right
a tennis ball rolls off the edge of a tabletop of height0710 m above the floor and strikes the floor at a point
a skater with an initial speed of 760 ms is gliding acrossthe ice air resistance is negligible the coefficient of
a semiconductor gaas laser emitting at 800 nm has a 400 micrometer cavity length with a refractive index n36 if the