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A transformer has an input coil by Nin = 450 turns and N out = 950 turns. If the voltage across the input coil has amplitude of 1.6 V, what is the voltage across the output circuit?
A helicopter has blades of length 4.0 m, rotating at 1.0 rev/s about a central hub, find the emf induced between the blade tip and the central hub
A 3 kg box rests on a horizontal surface. An external force 40 N is applied to the box, 30 degrees inclined from top. the box starts its motion from the rest. Find the final speed of the box after it moves 5 meters to the right
An inductor (L = 400 mH), a capacitor (C = 5.30 μF), a resistor(R = 500 Ω) are connected in series. A 50.0 Hz AC generator connected in series to these elements producesa maximum current of 300 mA in the circuit.
A current of 6.0 A is drawn from the battery in the figure shown below. How much is the voltage of the battery Vab in V
A singly charged positive ion has a mass of3.20×10–26 kg. After being acceleratedfrom rest through a potential difference of 833 V, the ion enters amagnetic field of 0.920 T along a direction perpendicular to thedirection of the field.
A uniform electric field has magnitude E = 270 N/C and is directed to the right. A particle with charge +4.3 nC moves along the straight line from a to b that is 0.25m in length, What is the work done on the particle by the electric field
A student sees a newspaper ad for an apartment that has 1430 square feet (ft2) of floor space. How many square meters of area are there
A camera with a 70.0-mm lens can focus on objects located from 1.40 m to an infinite distance away by adjusting the distance between the lens and the film. how far does the lens move with respect to the film
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 6.59 m and, in starting, what is the magnitude of the astronaut's linear speed
a fuse in an electric circuit is a wire that is designed to melt and thereby open the circuit if the current exceeds a
In an isometric exercise a person places a hand on a scale and pushes vertically downward, keeping the forearm horizontal. This ispossible because the triceps muscle applies an upwardforce perpendicular to the arm, as the figure indicates.
q1. an ambulance travelling at 39 ms approaches a car heading in the same direction at a speed of 19 ms. the ambulance
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