Physics, 06.11.2019 02:31 walkereddie580
A1.20-m string of weight 0.0121 n is tied to the ceiling at its upper end, and the lower end supports a weight w. neglect the very small variation in tension along the length of the string that is produced by the weight of the string. when you pluck the string slightly, the waves traveling up the string obey the equation y(x, t)=(8.50mm)cos(172rad⋅m−1x−2730rad⋅ s−1t)
assume that the tension of the string is constant and equal to w.
a. how much time does it take a pulse to travel the full length of the string?
b. what is the weight w?
c. how many wavelengths are on the string at any instant of time?
Answers: 1
Physics, 22.06.2019 00:30
Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?
Answers: 1
Physics, 22.06.2019 22:30
Compare the patterns of the two waves shown in the image. which statement is true about these waves?
Answers: 1
A1.20-m string of weight 0.0121 n is tied to the ceiling at its upper end, and the lower end support...
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