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Question: Two students with vibrating 440-Hz tuning forks walk away from each other with equal speeds. How fast must they walk so that they each hear a frequency of 438 Hz from the other fork?
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 190 MeV, and the relative biological effectiveness (RBE) of this type of radiation is 16. How many nuclei are in the beam
Starting from rest, a basketball rolls from the top to the bottom of a hill, reaching a translational speed of 5.2 m/s. Ignore frictional losses. What is the translational speed of the frozen juice can when it reaches the bottom
In 1916 Milikan used measurements of the kinetic energy of photoelectrons to detemine plancks constant
A stone thrown horizontally from the top of a 26.0-m tower hits the ground at a point 21.0 m from the base of the tower. Find the speed at which the stone was thrown
A bungee jumper (m = 66.00 kg) tied to a 48.00 m cord, leaps off a 78.00 m tall bridge. What size impulse is exerted on the bungee jumper while the cord stretches
A 5 kg block slides down an inclined ramp at approximately constant velocity. The ramp angle is 23 degrees counter clockwise from the horizontal. What is the value of the force on the block due to friction between the block and the ramp? Show work..
Gayle runs at a speed of 4m/s and dives on a sled, initially at rest on the top of a frictionless snow covered hill. After she has descended a vertical distance of 5m, her brother.
You have a 1.3m long copper wire. You want to make an N-turn current loop that generates a 1.0mT magnetic field at the center when the current is 1.2A. What will be the diameter of your coil
A rocket moves upward from rest with an acceleration of 29.4 m/s2 for 4 seconds. It then runs out of fuel and continues to move upward. Neglecting any air resistance, how high will it rise?
A 6.50*10^4 kg space probe is traveling at a speed of 10000 m/s through deep space. What is the final speed of the probe
What is the minimum energy needed to create a electron-positronpair when the photon collides with an electron? I know what to do when it collides with a nucleus, I can not figureout what to do about an electron.
A photon of wavelength 0.14795 nm, traveling due east, is scattered by an electron initially at rest. What is the velocity of the scattered electron
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