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A bullet of mass m= 0.0230 kg is fired along an incline and imbeds itself quickly into a block of wood of mass M= 1.30 kg. The block and bullet then slide up the incline, assumed frictionless, and rise a height H= 1.20 m before stopping. Calculate the speed of the bullet just before it hits the wood. Note. The block is kept from sliding down the incline initially by as small peg.
A crate is sliding down an inclined plane. The coefficient of kinetic friction between the crate and the plane is 0.3, the mass of the crate is 30 kg, and the angle of incline is 20°.
A 190 g ball moving at 0.45 m/s in the + x- direction is subject to a 0.15 N force in the - y- direction for 2.5 s. Find the magnitude of the ball's momentum change
A mass-spring system is in simple harmonic motion. It has a spatial frequency F and amplitude A. what fraction of the system energy is kinetic
A useful model of a water molecule is sketched in the figure below, with point charges of 5.2 10-20 C at the H sites, What is the total electric potential energy of this model of a water molecule
When the centrifuge reaches an angular speed of 2.5 rad/s, the trainee experiences a total acceleration equal to 4.8 times the acceleration due to gravity. Explain how long is the arm of the centrifuge?
The rms current in a solenoid is 0.036 A when the solenoid is connected to a 18 kHz generator. What is the peak voltage of the generator
Suppose that you hear a clap of thunder 18.4 s after seeing the associated lightning stroke. The speed of sound waves in air is 343 m/s and the speed of light in air is 3.00 x10^8 m/s. How long are you from the lightning stroke.
The system is released from rest, and the string moves without slipping over pulley. If the larger mass is traveling at a velocity of 2.25 m/s when it has dropped 1m, how much mechanical energy was lost due to friction in the pulley's axle.
Plutonium has a half life of 2.4 × 104 years. How long does it take for 99% of the plutonium to decay, What is the binding energy of the 4He nucleus
Elucidate in detail the image of the "A" you would see as you look into the balloon with "A" facing you.
Two point charges have a total charge magnitude of 576 µC. When placed 1.19 m apart, the force each exerts on the other is 20.2 N and is repulsive. What is the charge magnitude on each? Please include solution.
Luke and Leia are twins, and Luke immediately leaves after birth on a spaceship traveling at 65% of the speed of light, How old is Luke when he returns
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