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Problem: A football is kicked from ground level with an initial velocity of 23.4 m/s at angle of 37.0° above the horizontal.
Part A: How long is the football in the air before it hits the ground? Ignore air resistance.
Explain the each and every step in detail for help.
A golf club 1.01 m long completes a downswing in .25 s through a range of 180 degrees. What is the tangential acceleration of the end of the club?
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Assume that the earth andthe moon have circular orbits (which is almost true) and that theperiods of their orbits are 365 {\rm days} and 28.0 {\rm days}, respectively. How much work does the earth do on the moon in one day
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Power transmission lines often use a form of electric current called alternating current, but in many regions, such as the Province of Quebec, high-voltage direct-current lines are used instead, What is the power loss due to resistance in the line
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