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The two conducting rails in the drawing are tilted upward so they each make an angle of 30.0° with respect to the ground. The vertical magnetic field has a magnitude of 0.052 T. The 0.17-kg aluminum rod (length = 1.6 m) slides without friction down the rails at a constant velocity. How much current flows through the rod?
Water at a pressure of 3.8 atm at street level flows into an office building at a speed of 0.55 m/s through a pipe 4.4 cm in diameter. The pipes taper down to 2.6 cm in diameter by the top floor, 20 m above .
wheel A of radius rA = 11 cm is coupled by belt B to wheel C of radius rC = 20 cm. The angular speed of wheel A is increased from rest at a constant rate of 1.6 rad/s2. Find out the time needed for wheel C to reach an angular speed of 100 rev/min,..
The electric field midway between two equal but opposite point charges is 745 N/C, What is the magnitude of the charge on each
37.43 J of heat are removed from a gas sample while it is being compressed by a piston that does 23.12 J of work. What is the change in internal energy of the gas
Arranged on the floor are five concrete blocks, each 28.4kg and 0.265m tall. What is the minimum work required to stack all five vertically
q1. a rock of mass m 1.0 kg is tied to a string of length l 1.9 m and is twirled in a vertical circle. the speed v of
A 7.57- g bullet is moving at 689.00 m/s as it leaves the 0.63- m-long barrel of a rifle. What is the average force on the bullet
A current density of 6.00 multiplied by 10-13 A/m2 existsin the atmosphere at a location where the electric fieldis 70 V/m. Calculate the electrical conductivity of the Earth's atmosphere in this region.
Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt, What is the maximum charge on the dome
A billiard ball (the 8-ball) rests directly in front of the side pocket. Pool-hand Peta calls the shot into the side pocket to the right and shoots it in. Find the angle between that velocity vector and the right
An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461). If an angle of incidence into water from the carbon tetrachloride is 20, what is the angle of refraction into the air.
A model rocket blasts off from the ground, rising straight upwardwith a constant acceleration that has a magnitude of 80.4m/s2 for 1.72 seconds, at which point its fuel abruptlyruns out. Air resistance has no effect on its flight. What maximum altit..
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