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A woman throws a ball at a vertical wall d = 4.0 m away. The ball is h = 2 m above ground when it leaves the woman's hand with an initial velocity of 12 m/s at 45°. When the ball hits the wall, the horizontal component of its velocity is reversed; the vertical component remains unchanged. (Ignore any effects due to air resistance.)
(a) Where does the ball hit the ground?
(b) How long was the ball in the air before it hit the wall?
(c) Where did the ball hit the wall?
(d) How long was the ball in the air after it left the wall?
Starting with the three particle system, find the change in electric potential energy if the alpha particle is allowed to escape to infinity while the two protons remain fixed in place. (Throughout, neglect any radiation effects.)
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an ion enters a mass spectrometer which has a .21 t field perpindicular to electric field of 1.5 kvm and selects a
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A note played on a piano is 4719 Hz. If the speed of sound is 347 m/s, what is the wavelength of the note?
The temperature in Browning, Montana, was 44.0 °F on January 23, 1916. The next day the temperature plummeted to - 56.0 °F. What was the temperature change in Celsius degrees?
How far away from the people is the plane.
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