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Here is the problem which I am struggling on, please help me!
Problem: The phase angle of a series RL circuit with a 100 ohms resistor and a 20 mh inductor is 70 degrees. What is the inductive reactance of this circuit.
Please show how you get the answer.
For a damped oscillator with a mass of 290 g, a spring constant 80 N/m and a damping coefficient of 57 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 26 cycles.
question 1. how much mass would have to be suspended from the vertical spring to stretch it the first 5.0 cm?question
consider a point charge with a charge q located at the origin in an empty space. let the electric potential be zero at
a 15.0 kg stone slides down a snow-covered hill leaving point a with a speed of 10.0 ms. there is no friction on the
An engine has a hot reservoir temperature of 900 K and a cold reservoir temperature of 608 K. What is the efficiency of the engine
If a bubble in sparkling water accelerates upward at the rate of 0.263 m/s2 and has a radius of 0.694 mm, evaluate what is its mass
A thin film of polystyrene is utilized as an antireflective coating for fabulite (known as the substrate). The index of refraction of the fabulite is 2.409 and the index of refraction of the polystyrene is 1.49.
Standing at the edge of a cliff 33.5 m high, you drop a ball. Later, you throw a second ball downward with an initial speed of 12.7 m/s. What is the increase in speed of the second ball
A 2400 kg car moving at an initial speed of 25 m/s along a horizontal road skids to a stop in 64 m. Find the energy dissipated by friction
suppose the sun collapsed into being a neutron star of radius 12.0 km, without losing any mass. calculate the ratio of the escape velocity from the surface
a 55g horizontal metal bar 10cm long is free to slide up and down between two tall vertical metal rods that are 10cm
A pendulum consists of a 4.0 kg stone swinging on a 4.4 m string of negligible mass. The stone has a speed of 7.5 m/s when it passes its lowest point. what is the total mechanical energy of the system
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