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A flywheel is initially rotating at 20 rad/s and has a constantangular acceleration. After 9.0 s it has rotated through 450 rad. Its angular acceleration is:A. 3.3 rad/sB. 4.4 rad/sC. 5.6 rad/sD. 6.7 rad/sE. 11 rad/s
A ball player hits a home run, and the baseball just clears awall 20.6 m high located 131.0 m from home plate. The ball is hit at an angleof 35° to the horizontal, and airresistance is negligible. Assume the ball is hit at a height of1.0 m above t..
A car of mass 840.0 kg accelerates away from an intersection on a horizontal road. Calculate the acceleration of the car at that time
Baseball and the Washington Monument On August 25, 1894, What was the ball's direction of motion when caught in degrees below the horizontal
Using a block of a transparent, unknown material, it is found that a beam of light inside the material becomes totally internally reflected at the air-block interface at an angle of 48°. What is its index of refraction?
At time a grinding wheel has an angular velocity of 22. It has a constant angular acceleration of 28.0 until a circuit breaker trips at time = 1.60 . From then on, the wheel turns by an angle of 438 as it coasts to a stop at constant angular decel..
Draw a ray diagram depicting the following: and object is 20cm in front of a concave mirror whose radius of curvature is 25cm. Calculate the image position using the mirror equation
a -14 charge is placed on the x-axis at the origin. two 14 charges are placed on the y-axis one at y 0.2 m and one at
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, How far should she stand from the Washington Monument
Bicyclists in the Tour de France do enormous amounts of work during a race. How much work does he do during a 177-km race in which his average speed is 12.7 m/s
A steel aircraft carrier is 385 m long when moving through the icy North Atlantic at a temperature of 1.65°C. By how much does the carrier lengthen whereas it is travelling in the warm Mediterranean Sea at the temperature of 23.30°C.
There is a square with 4 charges. q3 is 3x10^-6 C and in the top left q4 is -2x10^-6 C and in the top right q2 is 2x10^-6 C and in the bottom left q1 is 4x10^-6 C and in the bottom left The distance between each charge on the outer edge of the squ..
a block of mass 0.244 kg is placed on top of a light vertical spring of force constant 4 925 nm and pushed downward so
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