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=14ÏÏĩ0. d)the ball will oscillate along the z axis between z=d and z=âd in simple harmonic motion. what will be the angular frequency Ï of these oscillations? use the approximation dâŠa to simplify your calculation; that is, assume that d2+a2âa2. express your answer in terms of given charges, dimensions, and constants
Answers: 2
Physics, 22.06.2019 15:50
An object with initial temperature 130 â f is submerged in large tank of water whose temperature is 50 â f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = â 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
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Physics, 22.06.2019 21:10
Aspecified volume of space contains an electric field for which the magnitude is given by e=e0cos(Ït). suppose that e0 = 20 v/m and Ï = 1.0 Ã 107 sâ1. part a what is the maximum displacement current through a 0.80 m2 cross-sectional area of this volume? express your answer with the appropriate units. idisp,max i d i s p , m a x = nothing nothing request answer part b how would this area have to be oriented relative to the electric field to get this maximum displacement current?
Answers: 2
Physics, 22.06.2019 23:30
The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength
Answers: 2
Which parts of the body act as levers? a. muscles b. joints c. bones d. veins...
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