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A 0.145 kilogram baseball pitched horizontally at 30.8 m/s strikes a bat and is popped straight up to a height of 55.9 meter. If the contact time is 1.60 milliseconds, find the magnitude of the average force on ball during contact.
Find the direction of the average force on the ball during contact.
A midle C note (262 Hz) is sounded on a piano to help tune a violin string. When the string is sounded, nine beats are heard in 3.0s. How much is the violin string off tune?
for a particle in a box of length la. what is the probability of finding the particle in the region 0ltxltl3 when n3b.
A nonreflective coating (n = 1.40) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of a specific wavelength (vacuum = 535 nm), find the minimum nonzero thickness that the coating can have.
A solid sphere of mass 0.599 kg rolls without slipping along a horizontal surface by a translational speed of 5.44 m/s. It comes to an incline that makes an angle of 31°with the horizontal surface. Ignoring energy losses due to friction, to what perp..
question1a bank robber travelling at 75 mihr in an escape car suddenly sees a barricade 150 meters ahead. the robber
The force on a wire is a maximum of 4.00*10^-2N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. what force will it now feel
A body cools from 50 degre celcious to 49 degree celcious in 5 seconds. Hw long would it take to cool from 40 degree celcious to 39 degree celcious.
an object carries a charge of -8.8 microc while another carries a charge of -2.0 microc. how many electrons must be
A 2590-kg spacecraft is in a circular orbit 2720 km above the surface of Mars. How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4480 km above the surface
a 35.0 cm diameter coil consists of 30 turns of circular copper wire 2.0 mm in diameter. a uniform magnetic field
A ball is thrown straight upward. At above its launch point, the ball's speed is one-half its launch speed. What maximum height above its launch point does the ball attain
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision. how far did they skid
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