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A transformer has 3,840 turns in the secondary. The inputvoltage is 110V, the output current is 6.5A. the input current is0.5A. Calculate the output voltage and the number of the number ofturns of the primary.
A 35 ? lamp and a 90 ? lamp are connected in series and placed across a potential of 40 V. What is the voltage drop across the first lamp
A gas undergoes two processes. In the first, the volume remains constant at 0.200 m3 and the pressure increases from 2.00 105 Pa to 5.10 105 Pa. Find the total work done by the gas during both processes
at point A, 3.00 m from a small source of sond that is emitting uniformly in all directions, the sound level is 53.0 dB. what is the intensity of the sound at point A
The viscous force on an oil drop is measured to be equal to 3.0X10^-13 N when the drop is falling through the air with a speed of 4.5X10^-4 m/s. If the radius of the drop is 2.5X10-6 m, what is the viscosity of air?
Two insulated spheres have radii r1 and r2, and charges q1 and q2, What is their combined kinetic energy when they collide, in terms of the variables above, and k the constant in Coulombs Law
What impulse Ft should be supplied to bring the ball to rest? If the ball is stopped in 0.03 s, what is the average force of the ball on the catcher's hand.
Low-frequency vertical oscillations are one possible cause of motion sickness, with 0.20 hz having the strongest effect. How much time elapses between two waves hitting the ship
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 1.8 m/s2. How fast will the automobile be traveling at that instant
An ocean liner leaves New York City and travels 43° north of east for 189 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
One of the predicted problems due to global warming is that ice in the polar ice caps will melt and raise sea level everywhere in the world. Where is this problem the most worrisome
Two equally charged particles are held 2.610-3 m apart and then released from rest.The initial acceleration of the first particle is observed to be7.0 m/s2 and that of the secondto be 10.0 m/s2. The mass ofthe first particle is 6.3 10-7 kg.
Starting from rest, a speedboat reaches a speed of 2.30 m/s in 1.2 s. What is the boat's speed after an additional 2.50 s has elapsed, assuming the boat's acceleration remains the same.
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