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Physics, 22.06.2019 04:00
What is the final velocity of the initial velocity of 25 and -50?
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Physics, 22.06.2019 05:40
Two polarizers are oriented at 40โ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?
Answers: 2
Physics, 22.06.2019 15:00
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14ฯฯต0. d)the ball will oscillate along the z axis between z=d and z=โd in simple harmonic motion. what will be the angular frequency ฯ of these oscillations? use the approximation dโชa to simplify your calculation; that is, assume that d2+a2โa2. express your answer in terms of given charges, dimensions, and constants
Answers: 2
Physics, 22.06.2019 21:00
What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
Answers: 1
Aboat is cruising in a straight line at a constant speed of 2.6 m/s when it is shifted into neutral....
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