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A tennis player hits a ball at ground level, giving it an initial velocity of 26.0 m/s at 54.0 degree above the horizontal.
1) Find the horizontal and vertical components of the ball's initial velocity?
2) Find how high above the ground does the ball go?
3) Find how long does it take the ball to reach its maximum height?
4) Find what is the ball's acceleration at its highest point?
5) For how long a time is the ball in the air?
6) When this ball lands on the court, find how far it is from the place where it was hit?
two blocks are connected by a massless string which passes through a hole in a frictionless table. the blocks have
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A beam of particles is directed at a 0.017-kg tumor. There are 2.1x10^10 particles per second reaching the tumor, Find the biologically equivalent dose given to the tumor in 19s
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A dipole is formed by point charges +3.8 micro Coulomb and -3.8 micro Coulomb placed on the axis at (0.45 m, 0) and (-0.45m, 0), respectively. At what positions on the axis does the potential have the value 7.7×105 V?
FOUR PEOPLE WITH A COMBINED MASS OF 300 KG ARE RIDING IN A 1100 KG CAR. WHEN THEY DRIVE DOWN A WASHBOARD ROAD WITH BUMPS SPACED 5.0M APART, HOW MUCH DOES THE CAR RISE UP ON ITS SPRINGS
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