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Consider a simple plane pendulum consisting of mass m attached to a string of length l. Using the Langrange's undetermined multiplier, find the tension of the pendulum string.
A 40g block of ice is cooled to -78 deg celcius and is then added to 560g of water in an 80g copper calorimeter at a temperature of 25 degrees celcius, determine how much ice is left
Phil is standing on a third floor balcony, 10m above the ground. Where does the ball hit the ground
In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.12 106 m/s. Find the centripetal acceleration of the electron
In discharging a capacitor what percentage of the initial potential remains after one time constant has passed? After two times constants? Three times constants
A small spherical lump of conductor, with a radius R = 0.1m, has a charge of 0.01 C placed on it. Compute the electrostatic potential energy of the system
A weightlifter has been given a barbell to lift. One end has a mass of 5.05 kg while the other end has a mass of 5.20 kg. The bar is 0.20 m long. (Consider the bar to be massless, and assume that the masses are thin disks, so that their centers of ma..
A telescope has an angular magnification of -30× and a barrel 1.02m long. What is the focal length of the eyepiece
A vessel whose walls are thermally insulated contains 2.10 of water and 0.450 of ice, all at the temperature of 0 . The outlet of a tube leading from a boiler in which water is boiling at atmospheric pressure is inserted into the water.
Two identical resistors of R0 = 30 ? are connected head-to-tail. Write an expression for the new length in terms of the old length L.
Two moles of an ideal gas are placed in a container whose volume is 9.1 multiply.gif 10-3 m3. What is the average translational kinetic energy of a molecule of the gas
What is the reactance of a 8.2×10?2?F capacitor connected to a 19kV (rms), 540Hz line? Determine the frequency and the peak value of the current
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 9350 m/s and protons move to the left at 1681 m/s. The particles are evenly spaced with 0.085..
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