Physics, 02.07.2019 21:30, ProAtWork7
1] two different colors of light (color 1 and color 2) are known to have the same speed when traveling in medium a. when they pass from medium a into medium b, they display the behavior shown below: both colors medium a color 1 medium b color 2 a (a) based upon this behavior, rank the following from fastest to slowest: (i) (ii) (iii) speed of both colors in medium a speed of color 1 in medium b speed of color 2 in medium b (b) is medium b dispersive with respect to light waves? explain your answer. 2] a transverse wave is traveling along a string. suppose that the mass density of the string becomes larger in one section of the string. as the wave enters this section of the string: (a) describe what happens to the speed of the wave. (b) describe what happens to the frequency of the wave. (c) describe what happens to the wavelength of the wave. (d) describe what happens to the period of the wave.
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Physics, 22.06.2019 23:30, selena827
You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?
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