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Earth's atmosphere is constantly bombarded by cosmic ray protons that originate somewhere in space. If the protons all passed through the atmosphere, assume that each square meter of Earth's surface would intercept protons at the average rate of 1400 protons per second. What would be the electric current intercepted by the total surface area of the planet?
You are at the controls of a particle accelerator, sending a beam of 2.70×107 protons (mass ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unk..
take a ride on the physics phantasm the newest frictionless roller coaster at six phlags. the ride starts off from rest
One generator uses a magnetic field of 0.15 T and has a coil area per turn of 0.045 m2. What magnetic field should be used in the second generator
An electron is moving at 3.43 x 106 m/s. What is the uncertainty in the velocity of the electron if you want to know its location to within 17 mm
A circular pond of radius 12 m has a layer of ice 0.25 m thick. On a spring day, the temperature of the water below the ice is 4.0°C, What is the rate of heat transfer through the ice
two steel wires of the same length one with radius r and the other with radius 2r are connected together end to end and
q1. two identical 30 rm g particles each carry 3.0 rm mu c of charge. one is held fixed and the other is placed 1.0 rm
q1. a rectangular block of ice 13 m on each side and 1.4 m thick floats in sea water. the density of the sea water is
Point charges located at 3, 8, and 11 cm along the x - axis are represented in the figure (at 3cm +q, 8cm -2q, 11cm +q). What is the magnitude of the force on the charge
A 10.8 kg object oscillates at the end of a vertical spring that has a spring constant of 2.05 104 N/m. By what percentage does the amplitude of the oscillation decrease in each cycle
How many protons hit the target. How much energy is delivered to the target each second if the protons each have a kinetic energy of 30 MeV and lose all of their energy in the target.
An uncharged capacitor and a resistor are connected in series to a source of EMF. If ? = 4.38 V, C = 20.1 ?F, and R = 111 ?, Calculate the maximum charge on the capacitor
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