More Density Graphi Questions
1 answer:
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Answer:
V = 49.05 [m/s]
Explanation:
We can easily find the result using kinematics equations, first, we will find the distance traveled during the 5 seconds.
where:
Yo = initial position = 0
y = final position [m]
Vo = initial velocity = 0
t = time = 5 [s]
g = gravity aceleration = 9.81 [m/s^2]
The initial speed is zero, as the body drops without imparting an initial speed. Therefore:
y = 0 + (0*5) + (0.5*9.81*5^2)
y = 122.625[m]
Now using the following equation we can find the speed it reaches during the 5 seconds.
The frequency of the 10th harmonic is 800 Hz
Explanation:
The frequency of the nth-harmonic for the standing waves in a string is given by the equation
where
is the fundamental frequency of the string
In this problem, we are given the frequency of the 3rd harmonic:
Which can be rewritten in terms of the fundamental frequency
So we find :
Now that we have the fundamental frequency, we can find the frequency of the 10th harmonic, with n = 10 :
Learn more about waves:
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