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A bar massless of 50 cm long and 4 kg of mass can turn around freely in a horizontal plane around a vertical axis that goes through the center of the bar. The bar is in rest when a bullet of 3g is fired in the rotational plan, towards one of the extremities of the bar. When view from above, the trajectory of the bullet is in 60 grades with the bar. If the bullet put up in the bar and the angular velocity of the bar is 10[rad/s] immediately after the collision. What's the velocity of the bullet immediately after the impact?
At t = 0 a grinding wheel has an angular velocity of 24.0 rad/s. It has a constant angular acceleration of 3.0 rad/s2 until a circuit breaker trips at t = 2.00 s. What was its acceleration as it slowed down
In a science fiction story, a microscopic black hole is given anenormous positive charge by firing an un-neutralized ion driveexhaust (consisting of positively charged xenon ions) into it forsix months.
After falling from rest from a height of 31 meter, a 0.53 kilogram ball rebounds upward, reaching a height of 21 meter. compute what average force was exerted on the ball
A ball is kicked from the ground toward a fence that is located 25 m away. By how much does the ball clear the fence
A 7.57- g bullet is moving at 689.00 m/s as it leaves the 0.63- m-long barrel of a rifle. What is the average force on the bullet
On a very muddy football field, a 100kg linebacker tackles an 85kg halfback. What is the direction of this velocity
A charge is moving at an angle of 30o to a magnetic field and experiences a force of 3.95 mN. find what would be the magnetic force that the charge would experience
A friction-less test track is banked so that cars can move around the track at 37 m/s without slipping up or down the track. find the bank angle
1.a 0.089 kg bullet is traveling at 338 ms when it strikes a block of wood. if the bullet penetrates 0.74 m into the
I put a packing peanut on top of it, and it only took one rotation--or crank--to knock the material off from the machine and onto the ground. mass of the peanut=.001 kg, distance from the machine to the peanut=.0005m.
The temperature outside is 0 degrees C when you are watching a football game. The referee blows his whistle when he is 110m away from your seat. How long does it take before you hear this whistle? How long would it take if the temperature was 35 d..
A student crazed by final exams, uses a force Modifying Above Upper P With right-arrow of magnitude Upper P and angle theta to push a block of mass m across the ceiling of his room. What is the magnitude of the block's acceleration
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