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The combination of an applied force and a friction force produces a constant total torque of 36.6 N · m on a wheel rotating about a fixed axis. The applied force acts for 6.20 s. During this time, the angular speed of the wheel increases from 0 to 9.8 rad/s. The applied force is then removed, and the wheel comes to rest in 59.7 s. (a) Find the moment of inertia of the wheel. 1 kg · m2 (b) Find the magnitude of the torque due to friction. 2 N · m (c) Find the total number of revolutions of the wheel during the entire interval of 65.9 s.
q1. assuming she was dropped from a height of 290 and that superman can accelerate straight upward at 18.0 determine
A rotating cylinder about 16 {rm km} long and 6.8 km in diameter is designed to be used as a space colony. With what angular speed should it rotate so that the residents on it will experience the same acceleration due to gravity as on Earth.
A cannon fires up at an angle of 30 degrees above the horzontal with a muzzle velocity of 40 m/s. How far from the base of the wall dos the cannon ball travel
question1an electron is a subatomic particle m 9.11 times 10-31 kg that is question to electric forces. an electron
You throw a 21.6 N rock vertically into the air from ground level. You observe that when it is a height 14.4m above the ground, What is its speed just as it left the ground
A capacitor consisting of two parallel plates connected to a 9V battery has a capacitance of 4 X 10-6 Farad. What is the charge of the capacitor?
A bullet with mass 5.04 g is fired horizontally into a 2.125-kg block attached to a horizontal spring. Find the initial speed of the bullet-block system
A 23.0 kg child plays on a swing having support ropes that are 2.10 m long. How fast will she be moving at the bottom of the swing
As the block has raised a vertical height of 0.725, the tension in the cord is 4.66 .What is the velocity of the bullet originally.
An extension cord made of two wires of diameter 0.129 cm (no. 16 copper wire) and of length 2.4 m (8 ft) is connected to an electric heater which draws 13.5 A on a 120-V line
A helicopter is ascending vertically with a speed of 9 m/s. At a height of 200 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach ground.
A laser with wavelength 650 nm is incident on a single slit with width 10 mm. A screen is placed 1 m beyond the slit. How far apart will the first dark bands on either side of the central maximum be?
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