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In a cloud chamber experiment, a proton enters a uniform 0.260T magnetic field directed perpendicular to its motion. You measure the proton's path on a photograph and find that it follows a circular arc of radius 6.50cm. How fast was the proton moving?
A string is wound around a metal wheel that is free to spin on a frictionless pivot. A hanging mass is connected to the other end of the string, What is the initial velocity of the hanging mass
In an old house, the heating system uses radiators, which arehollow metal devices through which hot water or steam circulates.In one room the radiator has a dark color (emissitivity = 0.891).It has a temperature of 66.1 oC.
Water flows from a fire truck through a hose that is 10.7 cm in diameter and has a nozzle that is 2 cm in diameter. what is the gauge pressure in the truck
A thin 11-cm-long solenoid has a total of 440 turns of wire and carries a current of 1.9A, Calculate the field inside the solenoid near the center
A swimming pool is 50 m long by 23 m wide and is less deep at one end than at the other. The depth at the shallow end is 1.18 m, and the depth at the deep end is 3.95 m. The slope is continuous (smooth) from one end to the other. What is the differen..
A major league pitcher can throw a baseball in excess of 41 m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches a catcher who is 17m away from the point of release.
Calculate the the electrical repulsion that each bag exerts on the other. Imagine two 2.0{\rm g} bags of protons, one at the earth's north pole and the other at the south pole.
A person walks in the following pattern: 9.8 km north, then 9.8 kmwest, and finally 3.0 km south. Constructthe vector diagram that represents this motion and from it judge how far and in what direction a bird would fly in a straight line from the ..
A ship moves 10.2km dueeast, and then 5.9km due north. What are the magnitude and the direction of the resultant displacement vector
Assume that electron-hole pairs are injected into n-type GaAs (Eg = 1.42 eV, mc = O.O7m0, mv= 0.5m0,) at a rate R = 1O^23 per cm3 per second. The thermal equilibrium concentration of electrons is n0 = 10^16 cm^3. If the recombination coefficient r..
atom X moves to the right at .99c and atom Y moves to the left at .99c according to an observer
We wish to coat a piece of glass (n=1.5) with a thin film (n=1.42) so that a maximum amount of light will be transmitted, what is the minimum thickness of the film in millimeters
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