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the image produced by a concave mirror is located 38 cm in front of the mirror the focal length of the mirror is 15 cm
suppose unpolarized light of intensity 244 wm2 falls on the polarizer in the figure and the angle in the drawing is
three unknown resistors are in a bin lets call them red green and blue when a physicist connects the three resistors in
nbspand the lens-to-retina distance is 1859 cm if the writing on the blackboarda student is reading a lecture written
a square coil enclosing an area with sides 27 cm long is wrapped with 2461 turns of wire a uniform magnetic field
a bar of lead bar a is in thermal contact with a bar of silver bar b of the same length and area one end of the
a household pays 1850 per year for the supplied electricity assuming the rate of 011 per kwh and 10 hours of average
a 10 microcoulomb charge is placed at the origin and a 20 microcoulomb charge is placed on the x-axis at x 40 cm if an
two equal charges of magnitude 1 c are separated by a distance of 1 km what is the force acting between these two
a wire of radius 15 mm carries a current of 28 a the potential difference between points on the wire 20 m apart is 47v
an inductor is connected to a 12khz oscillator that produces an rms voltage of 60v the peak current is 60mawhat is the
you are standing at x90km lightning bolt 1 at x0km and lightning bolt 2 at x120km both flashes reach your eye at the
a rocket cruising past earth at 0800c shoots a bullet out the back door opposite the rockets motion at 0900c relative
a wire is 3500 m long after applying a force to one end of the wire it is now 3504 m long calculate the tensile strain
an electric device which heats water by immersing a resistance wire in the water generaters 50 cal of heat per second
consider the infinite midplane between two charges of equal magnitudes and oppoisite signs if the charges are and - q
an automobile tire is inflated with air originally at 100degc and normal atmospheric pressure during the process the
a grandfather clock is controlled by a swinging brass pendulum that is12m long at a temperature of28degca what is the
a 10 turn square coil of area 0036m squared and a 20-turn circular coil are both placed perpendicular to the same
a potters wheel with rotational inertia 650 is spinning freely at 160 the potter drops a 290 lump of clay onto the
a 400-m length of light nylon cord is wound around a uniform cylindrical spool of radius 0500 m and mass 100 kg the
a juvenile elephant has a mass of 300kg he wishes to fly using his very large ears if the air speed on top of his ears
a disk797cm in radius rotates at a constant rate of1160revmin about its central axisa determine its angular speedradsb
a rotating wheel requires290s to rotate through 370 revolutions its angular speed at the end of the290s interval
a dentists drill starts from rest after280s of constant angular acceleration it turns at a rate of246104revmina find