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Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 110 π rad/s. One such flywheel is a solid, uniform cylinder with a mass of 310 kg and a radius of 0.790 m.
(a) What is the kinetic energy of the flywheel after charging?
(b) If the truck uses an average power of 7.1 kW, for how many minutes can it operate between chargings?
Consider the 30N weight held by two cables shown below. The left-hand cable is horizontal. What is the tension in the cable slanted
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. How many dark fringes are observed when 600 nm light illuminates the slides from directly above
find the magnitude and direction of the impulse delivered to the ball by the floor.
The rod rotates with an angular speed of 150 radians/second about an axis that passes perpendicularly through its other end. Illustrate what is the magnetic moment of the rotating charge?
A ball is thrown toward a cliff of height h with a speed of 31m/s and an angle of 60 degrees above horizontal. What was the maximum height of the ball
What is the true potential difference among this resistor when the meter is not present? I thought this was just 25 but it is wrong when I enter in.
A satellite in geosynchronous orbit above the moon will go around once in 27.3 days. what is the orbital radius of the satellite
What fraction of the initial kinetic energy was transferred
A 15.00 block is attached to a very light horizontal spring of force constant 450 and is resting on a smooth horizontal table. Suddenly it is struck by a 3 stone travelling horizontally at 8 to the right, whereupon the stone rebounds at 2.00 horizont..
A cue stick hits a cue ball with an average force of 23.8 N for a duration of 0.0246 s. how fast is it moving after being struck
The output voltage of an AC generator is given by ?v = (160 V) sin (50?t). The generator is connected across a 19.0-? resistor, By inspection, what is the maximum voltage
The angle of incidence of a light beam in air onto a reflecting surface is continuously variable. find the index of refraction of the reflecting material
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