Physics, 03.01.2020 00:31 jetblackcap
A1.80-m string of weight 0.0123n 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 equationy(x, t)=(8.50mm)cos(172rad? m^(? 1)x? 2730rad? s^(? 1)t)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? d) what is the equation for waves traveling down the string? a) y(x, t)=(8.50mm)cos(172rad? m? 1x? 2730rad? s? 1t)b) y(x, t)=(8.50mm)cos(172rad? m? 1x+2730rad? s? 1t)c) y(x, t)=(10.5mm)cos(172rad? m? 1x+2730rad? s? 1t)d) y(x, t)=(10.5mm)cos(172rad? m? 1x? 2730rad? s? 1t)
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Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.
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A1.80-m string of weight 0.0123n is tied to the ceiling at its upper end, and the lower end supports...
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