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A spinning flywheel has rotational inertia I = 417 kg·m2. Its angular velocity decreases from 19.5 rad/s to zero in 320 s due to friction. What is the frictional torque acting? Take positive to be "with the flywheel's rotation", and negative to be "opposite the flywheel's rotation"
A 4.3- kg box of books is pulled up a 4.76- m-long inclined plank to a height of 1.4 m. What percent of the work is lost to friction
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 V for 0.65 ms. find The average power supplied by the pacemaker
The wavelength of visible light ranges from 400 nm to 700 nm. Find the ranges of this light's wave number
A robot probe drops a camera off the rim of the 389 m high cliff on Mars, where the free fall acceleration is 3.7 m/s^2. Find out velocity with which it hits the ground and the time required for it to reach the ground.
The top-most tooth is protruding slightly, and the tension in the wire exerts two forces, what is the magnitude of the net force exerted on the tooth
Suppose that two objects attract each other with a gravitational force of 16 units. If the distance between the two objects is doubled, what is the new force of attraction between the two objects
A 2.0 kg mass attached to a light spring with a spring constant of 46 N/m oscillates on a frictionless horizontal surface. Find the maximum speed of the mass in its oscillation
A parallel combination of a 1.27 uF capacitor and a 2.67 uF one is connected in series to a 4.85 uF capacitor. FInd the charge of each capacitor
Explain how long will it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 425 {rm m}?
A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. Calculate the amount of energy stored in the capacitor
What is an average speed for the new trip
A model rocket launches with an initial velocity of 7 m/s, at an angle of 81 degrees (with respect to the horizon). How far does the rocket travel in the horizontal direction
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