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The upper ball shown in the figure to the right is released from rest, collides with the stationary lower ball, and sticks to it. The strings are both 80.0 cm long. The upper ball has a mass of 2.00 kg, and is pulled to the right such that the string makes an angle θo = 25.0o to the vertical. The lower ball has a mass of 1.50 kg. Find the frequency and maximum height of the motion following the collision.
The density of copper is 8.91 g/cm3, and its atomic mass is 63.5. Assuming each copper atom contributes one mobile electron to the metal, obtain the number density of free charges in the wire
For electrons in a metal, why is the density of states at the Fermi energy approximately equal to the density of free electrons divided by the Fermi energy
To measure the static friction coefficient between a 4.33-kg block and a vertical wall, the setup shown in the drawing is used. A spring (spring constant = 461 N/m) is attached to the block.
The TGV, France's high-speed train, pulls out of the Lyons station and is accelerating uniformly to its cruising speed. find the acceleration of the train and the tension in the strap
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A bedroom bureau with a mass of 57 kg,including drawers and clothing, rests on the floor. If the coefficient of static friction between the bureau and the floor is 0.45, what is the minimumhorizontal force a person must apply to start the bureaumov..
On December 27, 2004, astronomers observed the greatest flash of light ever recorded from outside the solar system. what was the average power output (in terms of P) of this magnetar
A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5 Newton. Find how much work does the string do on the boy
a ring has a radius r and charge q. the ring is shrunk to a new radius 12 r with no change in its charge. by what
Click on the Energy vs. Position button to see a plot of the kinetic, potential, thermal, and total energies as a function of the skater's position. Try Bar Graph to see the same information as a bar graph. For this tutorial, you should have the C..
A doctor, preparing to give a patient an injection, squirts a small amount of liquid straight upward from a syringe. What is the maximum height of the liquid above the syringe
A new spaceship that can travel at a speed of 0.900c. Mary, the astronaut,boards the spaceship to travel to Barnard's star, which is the second nearest star to our solar system after Alpha Centauri and is5.98 ly away.
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