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0.150kg stone rests on a frictionless, horizontal surface. A bullet of mass 5.00g , traveling horizontally at 380m/s , strikes the stone and rebounds horizontally at right angles to its original direction with a speed of 250m/s. Compute the direction of the velocity of the stone after it is struck.
Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutron stars (highly compact stars consisting only of neutrons).
A motorcycle accelerates uniformly from rest and reaches a linear speed of 22.0 m/s in a time of 9.0 s. What is the angular acceleration of each tire
Calculate the first-excited state energy (in eV) for an electron in a box (an infinite well) having a width of 0.050 nm
assume a block of mass 25.0 kg rests on a horizontal plane, and the coefficient of static friction between the surfaces is 0.220. what is the actual static frictional force that acts on the block if an external force of 25.0 N acts horizontally on..
What is the speed of the arrow as it leaves the bow. At a height of 5 meters above the surface of a lake, a sound pulse is generated. The echo from the bottom of the lake returns to point of origin 0.130 s later. The air and water temperatures are ..
A steel wire on a guitar has a length of 0.500 m and a mass of 3.50 x 10^-3 kg. To what tension must the wire be tightened
Define a lie in the strict or formal sense and explain what is meant by communication - what is the principal purpose of communication?
A 52.0 kg ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.0 turns each second. The distance from one hand to the other is 1.50 m. Biometric measurements indicate that each hand characterist..
A certain superconducting magnet in the form of a solenoid of length 1.10 m can generate a magnetic field of 11.0 T in its core when its coils carry a current of 85 A. Find the number of turns in the solenoid
A person walks first at a constant speed of 4.80 m/s along a straight line from point a to point b, What is her average speed over the entire trip
Let the x axis be parallel to the ground, +y direction be vertically upward, and take as an origin the point on the ground directly below the top of the ramp.
As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 121 bpm, How fast are you moving with respect to the Moon
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