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an energy of 01 j is stored in the metal ball on top of a van de graaff generatornbsp a spark carrying 1 micro coulomb
a straight wire length 80 m is bent to form a square if the wire carries a current of 20a what is the magnitude of the
a particle is constrained to move without friction on a circular wire rotating by constant angular speed omega about a
a 200-kg object is attached to a spring and placed on a horizontal smooth surfacea horizontal force of 200 n is needed
a ray of light is incident from the air onto a flat diamond surface at an angle of 35 degrees if the refractive index
figure below shows two circular regions r1 and r2 with radii r1 219 cm and r2 310 cm in r1 there is a uniform
an electrical component has two resistances of 15 omega sign and 25 omega sign linked in parallela what is the total
a toaster is rated at 580 w when linked to a 70 v source what current does the toaster carry and what is its
what is the solution to these problemsif electrical energy costs 12 cents or 012 per kilowatt-hour then what would the
light from a helium-neon laser lambda 6328 nm is incident on a single slit what is the maximum width for which no
the waves from a radio station can reach a home receiver with two different paths one is a straight-line path from the
helium-neon laser light lambda 6328 nm is sent during a 0350 mm wide single slit what is the width of the central
which of the following will emit an em wave choose all that applya neutron that is stationary a neutrino that is
1 three conducting spheres of identical radius but made of dissimilar metals copper gold and silver one of the spheres
two long straight parallel wires carry current in opposite directions as shown i of 110a i of 25 r500m what are the
you are on a ship 3m above the water and trying to see an object in the river the light form the flash light strikes
two systems are formed from a converging lens and a diverging lens as shown in parts a and b of the drawing the point
two events are observed in a frame of reference s to occur at the same point by the second event occurring after a time
a 83-turn circular coil radius 37 cm by a total resistance of 74 omega is placed in a uniform magnetic field directed
a 40 g block of ice is cooled to -75degc and is then added to 590 g of water in an 80 g copper calorimeter at a
the distance from the lens system cornea lens of a particular eye to the retina is 175 cm what is the focal length of
a converging lens with a focal length of 140 cm and a diverging lens are placed 260 cm apart by the converging lens on
consider an event by space-time coordinates t20s x25108 ms relative to frame s find the value gamma that will be
a loop antenna of area 200 cm2 and resistance503 microomega is perpendicular to a uniform magnetic field of magnitude
what is the change in voltage a long a 25 m long jumper lead made from 20 mm diameter copper if it is carrying a