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a an ideal gas occupies a volume of 18 cm3 at 20degc and atmosphericpressure determine the number of molecules of gas
a solid aluminum sphere has a radius of 234 m and atemperature of 890 degc the sphere is then completely immersedin a
a parallel-plate capacitor has circular plates of 610 cm radius and 110 mmseparationa calculate the capacitanceb what
a 120 gcube of ice at 0degc is dropped into 10 kg of water that wasoriginally at 86degc what is the final temperature
water at the top of niagara fallshas a temperature of 80degc if itfalls a distance of 700 m and all ofits potential
a steel rod rho 7860 kgm3 has a length of240 m it is bolted at both ends between immobile supportsinitially there is
an elevator has mass 740 kg notincluding passengers the elevator is designed to ascend atconstant speed a vertical
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
the heaviest and lightest strings on a certain violin have linear densities of 30 and 029 gm what is the ratio of the
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
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