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An object of mass 2M moving at speed V collides with a stationary object of mass M. The collision is elastic. After the collision the object of mass 2M has a final speed of v1 and the object of mass M has a final speed of v2. (a) Show that the relationship between the final velocities v1 and v2 is 4v1 = v2. (b) Show that the final velocities are related to the initial velocity V by the equations v1 = V/3 and v2 = 4V/3. (c) Calculate the final velocities of the elastic collision between a moving object of a mass of 2.0 kg and an initial velocity of 3.0 m/s and a stationary object of mass 1.0 kg. Show all your work.
A uniform 0.25-kilog thin rod that has an 80-centimeter length is free to rotate about a fixed horizontal axis perpendicular to and through one end ram of the rod. Find the initial acceleration of the free end of the rod
The depth of the potential well for free electrons in a metal can be accurately determined by observing that the photoelectricwork function is the energy necessary to remove an electron at thetop of the occupied states from the metal;
In state-of-the-art vacuum systems, pressures as low as 1.00* 10-9 Pa are being attained. Calculate the number of molecules in a 1.80-m3 vessel at this pressure and a temperature of 26.0°C.
Electrons leave the cathode of a TV tube at essentially zero speed and are accelerated toward the front by 10,000 V potential. At what speed do they strike the screen? Express this value as a fraction of the speed of light.
A diverging lens (f = -11 cm) is located 20.0 cm to the left of a converging lens (f =34.0 cm). A 3.00-cm-tall object stands to the left of the diverging lens, accurately at its focal point. Decide the distance of the final image relative to the conv..
What stage of the scientific method would someone be at if they make a prediction that drinking alcohol will make people more violent throughout a sporting event.
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.66 V, What emf and current are induced in the square coil
A ball is thrown straight upward and returns to the thrower's hand after 2.70 s in the air. A second ballis thrown at an angle of 29.0° with the horizontal. At what speed must the second ball be thrown so that itreaches the same height as the one thr..
A helium-neon laser with wavelength 632.8 nm produces a beam of diameter 1.75 mm and delivers 2.00 x 1018 photons/s. What is the power output of this laser
Your little sister (mass 25.0 kg) is sitting in her little red wagon (mass 8.65kg ) at rest. You begin pulling her forward, Calculate the impulse you imparted to the wagon and its passenger
An unknown number of moles of an ideal monoatomic gas expand reversibly from Vi = 2.30 m3 to Vf = 3.10 m3, at a constant pressure of 1.99 atm, Find the number of moles of gas
A 75-kg man is riding in a 75-kg cart at 1.0 m/s. He jumps off in such a way as to land on the ground with no horizontal velocity
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