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The 160-mm-radius brake drum is attached to a larger flywheel that is not shown. The total mass moment of inertia of the drum and the flywheel is 18 kg · m2 and the coefficient of kinetic friction between the drum and the brake shoe is 0.35. Knowing that the angular velocity of the flywheel is 360 rpm counterclockwise when a force P of magnitude 300 N is applied to the pedal C, determine the number of revolutions executed by the flywheel before it comes to rest.
A projectile is fired horizontally from a gun that is 48.0 m above flat ground, emerging from the gun with a speed of 280 m/s. How long does the projectile remain in the air
The speed of sound in Helium is 1010 m/s.Suppose you use a tuning fork with a frequency of 522 HZ. What would be the separation of the 2 maxima in a standing wave apparatus if the tube were filled with helium gas?
A glass windowpane in a home is 0.62 cm thick and has dimensions of 1.2 m 2.4 m. On a certain day, What is the rate at which energy is transferred by heat through the glass
a uniform disk with radius r = 10.0 cm and mass 650 g attached to a uniform rod with length L = 640 mm and mass 300 g. Calculate the rotational inertia of the pendulum about the pivot point
A mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. How long will the mortar shell remain in the air
the human body normally produces about 2 x 106 red blood cells per second.a. use scientific notation to express how
When a capacitor is connected to a 9.45 V source, the stood energy in the capacitor is 6.50 mJ. Determine the capacitor of the capacitor
A 17.4kg block is dragged over a rough, horizontal surface by a constant force of 160N acting at an angle of 25.1 degrees above the horizontal. Find the magnitude of the work done by the force of friction
You have a thin lens with a focal point at 1.7 cm. If you place a candle stick at a distance of 3.9 cm from the center of the lens, calculate the distance of the resulting image from the lens
Two objects with masses of 3.90 kg and 6.20 kg are connected by a light string that passes over a frictionless pulley, as in the figure below. (The figure shows a pulley with the two objects on opposite sides hanging vertically) (a) Determine the ..
a converging lens forms a real image 1.27 times the size of the object. The object distance is 22cm. Find the distance of the focal point from the center of the lens
the altitude of a hang glider is increasing at a rate of 6.80 m/s. At the same time, Find the magnitude of the glider's velocity
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