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the directional chooses are into page counterclockwiseup clockwise rightout of page no current would be inducedleft
why do power companies use low currents in power lines when transferring electrical energy over large distancesbecause
which of the following will create a magnetic field choose all that applyan ion that is slowing down from 500 kmh to
a particle is constrained to stay on a frictionless circular ring of radius r solve the appropriate hamiltionian for
block a weighs 199 lb and is moving toward the left with a velocity of 4 fts just before it is struck by the bullet b
four equal positive point charges each of charge -14 c are at the corners of a square of side 12cmwhat charge should
a 400 cm rope under a tension of 90 n is set into oscillation the mass density of the rope is 170 gcm what is the
a potters wheel a solid uniform disk of mass 57 kg and radius 065 m spins about its central axis a 21 kg lump of clay
at time t 0 s a wheel has an angular displacement of zero radians and an angular velocity of 15 rass the wheel has a
a string 02 m long vibrating in the n 4 harmonic excites an open pipe 089 m long into second overtone resonance the
a 1200 kg ore cart is rolling at 108 ms across a flat surface a crane dumps 493 kg of ore vertically into the cart how
a 7 kg sample of mercury is completely solidified and liberates 110 kj of energy what is the original temperature of
a 416 kg car moving at 178 ms hits from behind another car moving at 113 ms in the same direction if the second car has
a 208 kg copper bar is put into a smelter for melting the initial temperature of the copper is 3000 k how much heat
a machinist turns the power on to a grinding wheel at rest at time t 0 s the wheel accelerates uniformly for 10 s and
a steel pipe 22 m long installed when the temperature was 15degc is used to transport superheated steam at a
a glass flask has a volume of 900 ml at a temperature of 20deg c the flask contains 895 ml of mercury at an equilibrium
two vehicles approach a right angle intersection and then collide after the collision they become entangled if their
consider a string consisting of two densities p1 in region 1 where xlt0 and p2 in region 2 where xgt0 a continuous
a substance has a melting point of 20deg c and a heat of fusion of 29 times 104 jkg the boiling point is 150deg c and
a brass rod is 487 cm long and an aluminum rod is 706 cm long when both rods are at an initial temperature of 0deg c
a glass tube that is bent into a rectangular u find an expression for the difference in the height h between the tops
the sun emits electromagnetic radiation that hits the earth the maximum wavelength that the sun emits is at 545nm at
which of the following devices use a diffraction grating in order to functiona eyeglass that correct for