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the electromagnetic wave that delivers a cellular phone call to acar has a magnetic field with an rms value of 138e-10
the average intensity of sunlight reaching the earth is 1390 wm2 a charge of 238 x10minus8 c is placed in the path of
an ac circuit contains a 100 omegaresistor a 630 microf capacitor and a370 mh inductor connected in series to anac
a speeder is pulling directly away and increasing his distance from a police car that is moving at 251ms with respect
a parallel plate capacitor has two plates each of area30x10-4 m2 separatedby 35x10-4 m the space betweenthe plates is
a square wire loop with 187 m sides is perpendicular to a uniformmagnetic field with half the area of the loop in the
the optical power ofan optical device of focal length f is 1fthe unit of which is 1m or mndash1 ordiopter an image is
a uniform magnetic field is perpendicular to the plane of acircular loop of diameter 12 cm formed from wire of diameter
in a youngs double-slit experiment two rays of monochromaticlight emerge from the slits and meet at a point on a
when a ball is thrown upward it spends the same amount of time on the way up as the way down- as long as air resistance
a charging bull elephant with a mass of 5240-kg comes directly toward you with a speed of 455ms you toss a 0150-kg
a 0430-kg blocknbsp is attached to a horizontal spring that is at its equilibrium lenght and whose force constant is
a cockroach of mass m lies on the rim of a uniform disk of mass40m that can rotate freely about its center like a
two coils are at fixed locations when coil 1 has no current andthe current in coil 2 increases at the rate 154 as the
a find the maximum rate of deceleration of a car on a dry levelroad assuming the coefficient of static friction between
a solenoid that is 103 cm long has a cross-sectional area of175 cm2 there are 790 turns of wire carrying a currentof
the current in an rl circuit drops from 080 a to 13 main the first second following removal of the battery from
at a given instant the current and self-induced emf in an inductorare directed as indicated in the figure 30-63 the
what are the bound charge densities inside and outside of a neutralsphere of linear dielectric with radius r with
an object initially at rest breaks into two pieces as the result of an explosion one piece has twice the kinetic energy
an object is located 139 cm in front of a convex mirror the image being 889 cm behind the mirror a second object twice
two particles each have a mass of 60 times 10-3kg one has a charge of 50 times 10-6 c and theother has a charge of -50
a diver shines a light up to the surface of a flat glass-bottomed boat at an angle of 33 relative to the normal if the
a transformer consisting of two coils wrapped around an iron coreis connected to a generator and a resistor as shown in
how practical is solar power for various devices assume that on asunny day sunlight has an intensity of 1000 wm2 at