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two parallel plates each of area 500 cm2 are separatedby 300 mm with purified nonconducting water between them a
the drawing shows a set of equipotential surfaces seen incross-sections each is labeled according to its
when a resistor is connected across the terminals of an acgenerator 115 v that has a fixed frequency there is a current
an infinite plane of charge see figure below has a charge perunit area of sigma 27 microcm2 what is the change in the
an object attached to a horizontal spring is oscillating backand forth along a frictionless surface the maximum speed
a tennis ball has a mass of 0057kg a professional tennis player hits the ball hard enough to give it a speed of 50ms
in the process of compressing n moles of an ideal diatomic gas toone-fifth its initial volume 190 kj of work is done on
a proton moves at a speed of 1210 msin a direction perpendicular to a magnetic field with a magnitude of 074 t what is
an ideal gas has its pressure cut in half slowly while being keptin a container with rigid walls in the process 265kj
a horizontal pipe of diameter 120 mm has a constriction of diameter40 mm the velocity of water in the pipe is 60 ms and
truefalse1 adding a dielectric between the plates of an air capacitordecreases its capacitance2 the capacitance of a
a pump of 2 kw output power discharges water from a cellar into astreet that is 6m above at what rate in liters per
a 2 kg mass is released from rest at the top of a plane inclined at20 degrees above the horizontal the coefficient of
a what is the emergent velocity of water from a crack in itscontainer 6m below the surfaceb if the area of the crack is
a nearsighted man uses eyeglasses with a refractive power of 38 diopters wearing the glasses 025m from his eyes he is
a roller coaster starts at a point 30 m above the bottom of a dipwith a speed of 25 ms neglect friction what will be
four tires of an automobile are inflated to a gauge pressure of 201kpa each tire has an area of 00230 m2 in contact
an object is attached to the lower end of a 100coil spring that is hangign fromm the ceiling the springstretches 16 m
an interesting but over simplified model of an atom pictures anelectron in orbit around a proton suppose this electron
a 10 kg book initially at rest falls from a height of 15 mto the floor use conversation of mechanical energy to show
the shaft of a pump starts from rest and has an angularacceleration of 550 rads2 for180 sa at the end of this interval
a flight attendant pulls her 74 nflight bag a distance of 318 m along alevel airport floor at a constant velocity the
a spherical mirror is polished on both sides when the convexside is used as a mirror the magnification is 14 what is
a group of college students eager to get to floride on a spring break drove the 637 mi trip with only minimum stops
the pull cord of a lawnmower engine is wound around a drum ofradius 600 cm while the cord is pulled with a force of 75