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A steel ball (140 gm) is fired at 120 ms-1 toward a nether steel ball (4 kg) on a smooth frictionless surface. Draw a diagram and suppose that the collision is elastic. Determine:
1) The momentum of the balls after the collision.
2) The momentum of the balls before the collision.
3) The total kinetic energy of the balls after the collision.
4) The total kinetic energy of the balls before the collision.
a laser beam passes through a converging lens with a focal length of 19 cm at what distance past the lens has the laser
A nylon guitar string has a linear density of 5.56 g/m and is under a tension of 161 N. The fixed supports are D = 74.4 cm apart. The string is oscillating in the standing wave pattern shown in the figure. Calculate the (a) speed, (b) wavelength, and..
The air inside a bicycle tirenpumphas 202 joules of work done on it as 66.1 joules of heat is conducted away from it
Suppose the temperature of 4.63 L of ideal gas drops from 353 K to 275 K. (a) If the volume remains constant and the initial pressure is atmospheric pressure, find the final pressure. Pa (b) Find the number of moles of gas. mol
If you run the wire between the poles of a strong horseshoe magnet, subjecting 5.00 cm of it to a 1.95 T field (perpendicular to the wire), what force is exerted on this segment of wire
The atomic mass of 5626Fe is 55.934939 u, How much kinetic energy will the products of the decay have
A “75 Watt” light bulb uses an average power of 75W when connected to an rms voltage of 120V. What is the resistance of the light bulb? What is the maximum current in the light bulb? What is the maximum power used by the bulb at any given instant of ..
question a body of mass 60 kg is dragged with just enough force to start moving on a rough surface with coefficients of
A uniform 2.95- kg spinning disk with a radius of 0.263 m is brought to rest by a brake-pad pressed against the side 0.205 m from the rotation axis. What frictional force was applied by the brake pad
An object (C) of mass 0.1 kilogram strikes a second object (D), of mass 0.3 kilogram that is initially at rest. Mass C has an initial velocity of +2 m/s. Find and describe those final velocities for the two objects.
A friend of yours who starts out at the same age as you travels to the alpha centauri solar system which is 4.70 light-years away. How fast did she travel
On a frozen pond, a 9 kg sled is given a kick that imparts to it an initial speed of v0 = 2.2 m/s. find the distance the sled moves before coming to rest
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