Physics, 22.10.2019 01:00 kprincess16r
Which of the following is the most likely drift speed of the electrons in the filament of a light bulb?
10-8 m/s
10-4 m/s
10 m/s
104 m/s
108 m/s
Answers: 3
Physics, 22.06.2019 03:50
Two polarizers are oriented at 70ββ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?
Answers: 1
Physics, 22.06.2019 13:00
At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius Οa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature Οr of its path, both as observed by the nonrotating skydiver.
Answers: 3
Physics, 22.06.2019 23:30
An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=β2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.
Answers: 2
Which of the following is the most likely drift speed of the electrons in the filament of a light bu...
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