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A 740 gram grinding wheel 21.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 240 about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 45.5 s with constant angular acceleration due to friction at the axle. What torque does friction exert while the wheel is slowing down?
A circuit consists of a 12.0- battery connected to three resistors (40 , 16 and 120 ) in series. Find the current that flows through the battery
Two balls, of masses = 49 and = 67 , are suspended as shown in the figure. The lighter ball is pulled away to a 66 angle with the vertical and released. suppose that positive axis is directed to the right. What is the velocity of the lighter ball ..
A cylindrical tank with a large diameter is filled with water to a depth D = 0.310 m. What is the rate at which water flows out, in cubic meters per second
A 0.285-kg volleyball approaches a player horizontally with a speed of 14.0 m/s, What impulse is delivered to the ball by the player
q1. a pet-store supply truck moves at 25ms north along a highway. inside a dog moves at 1.85ms at an angle of 35deg
A 0.500 kg stone is moving in a vertical circular path attached to a string that is 75.0 cm long. find The magnitude and direction of the velocity of the stone
An object is placed to the left of a convex lens and on the optical axis. What is the magnification of the image formed by the lens
A locomotive is pulling a number of identical wagons along a level track and accelerating. Friction is negligible. Starting from the last wagon, the ratio of the forces between adjacent wagons is.
A block (mass = 1.8 kg) is hanging from a massless cord that is wrapped around a pulley (moment of inertia = 1.2 x 10-3 kg·m2), find the angular acceleration of the pulley
If the plane does 2.00 x 105 J of work to tow the glider 155 m and the tension in the tow rope is 2460 N , what is the angle between the tow rope and the horizontal
a supertanker with the mass of 3.34^7 kg is moving with a constant velocity .its engines generate a forword thurst of 5.38x10^5 n. determine the magnitude of the upward buoyant force exerted on the tanker by the water
The model airplane in Figure 5.7 is flying at a speed of 13.2 m/s on a horizontal circle of radius 17.9 m. The mass of the plane is 1.18 kg. What is the net work done on the plane
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