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A football punter wants to kick the ball so that it is in the air for 3.7s and lands 45m from where it was kicked. Suppose that the ball leaves 1.0 m above the ground.
Part A
At what angle must the ball be kicked?
Part B
With what initial speed must the ball be kicked?
the efficiency of a particular car engine is 27 when the engine does 8.7 kj of work per cycle. assume the process is
A train is rounding a circular curve whose radius is 200 m. At one instant, the train has an angular acceleration of .0015 rad/s2, Determine the angle of the total acceleration relative to the radial direction
What is final speed of the block
These coils have a radius R = 33 cm. The distance between the coils is, of course, also d = 33 cm (otherwise they would not form a Helmholtz system). Each coil has 72 turns. As explained above, we will not measure the current but rather the voltag..
two flexible balls rolling along a frictionless horizontal surface collide with each other. the larger of the balls
Predict the effect on concentration of SO3 as equilibrium is achieved by using Q, the reaction quotient. 2 SO3(g) 2 SO2(g) + O2(g
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A disk-shaped merry-go-round of radius 2.73 meter and mass 165 kilogram rotates freely with an angular speed of 0.621 rev/s. Determine the final angular speed of the merry-go-round
A 45 degree wedge is pushed along a table with constant acceleration A. A block of mass m slides without friction on the wedge. Find its acceleration (gravity is downwards),
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