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a "wien" velocity filter uses an electric field and a magnetic field that are at right angles to each other. If there is no deflection of a beam of protons passing through the filter when the magnitudes of the fields are 6000V/m and .0001 T what is the energy of the proton beam? Give your answer in MeV.
A 150 MW laser pulse is focused with a lens to a diameter of 1.39 %u03BCm. What is the laser beam's electric field amplitude at the focal point
two blocks are connected by a rope passing through a pulley. one block is on a table and has a mass of 1kg the other is
When resting, a person has a metabolic rate of about 3.0 105 joules per hour. The person is submerged neck-deep into a tub containing 1.12 103 kg of water at 22.10° C. find the water temperature after half an hour
A harmonic wave in a wire has amplitude 7.07 mm, wavelength 2.61 m, and frequency 254 Hz. What is the propagation speed of the wave
The Hall effect can be used to determine the density of mobile electrons in a conductor. Find the density of mobile electrons in the material
A car is traveling along a straight road at a velocity of +31.0 m/s when its engine cuts out. For the next ten seconds, the car slows down, and its average acceleration is a1.
q1. black holes are suspected while a visible star is being noticeably pulled by an invisible partner that is more
q1. what temperature change would reason a 0.20 enhance in the volume of a quantity of water that was at first at 20
Given the strategic decisions in the case, Classify three leadership actions that the industry would need to be consider to implement the decisions. Explain why these are critical to implementing the strategic decision.
The surfaces of the lens have radii of curvature 27.1 cm (located on the object side of the lens), determine the index of refraction
A 9.58 m × 14.9 m house is built on a 14.2-cm-thick concrete slab. What is the heat-loss rate through the slab
An alpha particle has twice the charge of a beta particle. Why does the former deflect less than the later when passing between electrically charged plates, What particles make up the nucleus of an atom
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