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Qusetion: Calculate the kinetic energy of alpha particles that bend with a radius of R = 0.63m in a magnetic field of B = 0.5T. Assume that the alpha particles are doubly charged helium atoms with atomic masses of 4u; 1u has a mass of 931.5MeV/c2.
Calculate the power of the corrective lens required by a hyperopic eye whose near point is at 100.0 cm
A firecracker is tossed straight up into the air. It explodes into three pieces of identical mass just as it reaches the highest point. Evaluate how fast is the third piece moving
A proton is suspended in a vacuum between two oppositely charged horizontal parallel plates. what is the charge of the larger sphere
You tie a cord to a pail of water, and you swing the pail in a vertical circle of radius 0.800 meter. Find what minimum speed must you give the pail
consider the daughter of radon 222 through alpha decay. a sample which initially contained 10 moles of this daughter
High voltage power lines are a familiar sight throughout the country. Find the resistance of ten kilometers of this wire
In a large centrifuge used for training astronauts and pilots, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. Determine how long is the arm of the centrifuge
A sinusoidal wave traveling in the positive x-direction has a wavelength of 11 cm, a frequency of 13 Hz, and an amplitude of 19 cm. The part of the wave that is at the origin at t = 0 has a vertical displacement of 6 cm.
Smaller mammals use proportionately more energy than larger mammals; that is, it takes more energy per gram to power a mouse than a human. A typical mouse has a mass of 20 g and, at rest, needs to consume 3.0 Cal each day for basic body processes.
at very low signal frequencies will the maximum values of i current through the resistor and v voltage across the
A parallel- plate,air-gap capacitor has a capacitance of 28 pF. The platesare separated by 1.2mm. (1 pF = 1 x 10-12F, 1 mm = 1 x10-3m) What is the area of each plate? What is the charge on each plate if the potential difference is 75V?
A 10.0 kg black is released from point A. The track is frictionless except for the portion among points B and C, which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2250N/m, and compresses the spring 0.300 ..
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