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A 200 rms ac supply feeds a 100mH inductor in series with a 800 ohm resistor.Calculate the circuit impedance, current , phase angle, and power factor when the frequency is 955Hz.
A disk-shaped merry-go-round of radius 2.93 meter and mass 155 kilogram rotates freely with an angular speed of 0.701 rev/s. Obtain the final angular speed of the merry-go-round
1 how long does it take a plane traveling at a constant speed of 160 ms to fly once around a circle whose radius is
A spring hanging from the ceiling has an unstretched length of 80cm. What is the amplitude of the resulting oscillation
A bucket filled with dirt of mass 20 kg is suspended by a rope that hangs over a pulley of mass 30 kg and radius 0.25 m. Everything is initially at rest.
At the earths surface, a projectile is launched straight up at a speed of 8.7 km/s. To what height will it rise
The total charge of thethorium nucleus is 1.44×10-17C. What is the magnitudeof its electric field at a distance of 8.66×10-10m from the nucleus? What is the magnitudeof the force on an electron at that distance?
A crane drops a 1.0 kg steel ball onto a steel plate. The balls speed just before impact is 2.0m/s. what is the bounce back speed right after the impact
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 3.7L in the warm store at 76oF. By how much has the volume decreased
develop a hypothesis for how kernel color is inherited . the hypothesis should includea number of genes involvedb
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 240 kg · m2, What is the new angular speed of the merry-go-round
Two space walkers, one with a mass of 77 kg and the other with a mass of 78 kg, hold on to the ends of a lightweight cable 14.5 m long. how far will the less massive astronaut move
A box of unknown mass is sliding with an initial speed vi = 5.90 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 2.10 m long. determine the final speed of the box after sliding across the rou..
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