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A 3.8kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 450m/s , goes completely through the block, emerging at a speed of 250m/s .
What is the speed of the block immediately after the bullet exits?
If a different tuning fork is used and the first position that makes a standing wave is 15.0 cm from the opening and the second is 45.0 cm, what is the frequency of this tuning fork
A strip of doped silicon 325 µm wide contains 9.6 1022 conduction electrons per cubic meter and an insignificant number of holes, What is the thickness of the strip
A 1650-kg car is travelling at 31.2 m/s. How fast must a 91.0-kg bicycle and rider be travelling to have the similar kinetic energy as the car.
A chair of weight 130 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 45.0 fixed at an angle of 39.0below the horizontal and the chair slides along the floor.
A vector has components of 7.0 units along the x axis and 9.0 units along the y axis. What is the angle between the vector and the x axis
A jet airplane is in level flight. The mass of the airplane is m = 8890 kg. At what angle is the airplane banked
A 49.0 g ball of copper has a net charge of 1.7 µC. What fraction of the copper's electrons have been removed
Assume that the masses of the chains, pulleys, and ropes are negligible and the crate is rising with an acceleration of 2.6 m/s2. Identify the force.
A billiard ball is moving in the x-direction at 30 cm/s and strikes another billiard ball moving in the y-direction at 40.0 cm/s. As a result of the collision, the first ball moves at 50.0 cm/s, and the second ball stops. In what final direction d..
A roofer accidently drops a bundle of shingles. If it hits the ground with a speed of 86 m/s, how fast was it moving 3 seconds earlier (g=10 m/s/s)
Two objects of masses m and 3.00 m are moving towards each other along the x-axis with the same initial speed of v. The object with mass m is travelling to the left.
A 11.0nC point charge is at the center of a 2.50m× 2.50m × 2.50m cube. find the electric flux through the top surface of the cube
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