At what height above the ground must a body of mass 20kg be situated in order to have potential energy equal in value to the Kin
1 answer:
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Answer:
The funda mental frequency of the original tube is 182Hz.
Explanation:
See the attachment for the calculation steps.
In order to calculate the fundamental frequency of the original closed tube we need to find the length of the tube which is equal to the sum of the lengths of the two new tubes.
For closed tubes
f = nv/4L (n = 1, 3, 5,...n)
f = nv/2L (n = 1, 2, 3,...n)
The details of calculation can be found below in the attachment.
Missing picture in the text. I've found it here:
https://www.flickr.com/photos/[email protected]/6791933847/in/photostream
Solution:
Circuit 1)
The three resistors are in series. So the equivalent resistance of the circuit is
So the current flowing through each resistor is the same, and it is given by Ohm's law:
And the voltage drop across each resistor is given by Ohm's law as well:
Circuit 2)
The three resistors are in parallel, so their equivalent resistance is given by
The voltage drop across each resistor is the same, and it is equal to the voltage of the battery:
while the current across each resistor is given by Ohm's law:
https://www.flickr.com/photos/[email protected]/6791933847/in/photostream
Solution:
Circuit 1)
The three resistors are in series. So the equivalent resistance of the circuit is
So the current flowing through each resistor is the same, and it is given by Ohm's law:
And the voltage drop across each resistor is given by Ohm's law as well:
Circuit 2)
The three resistors are in parallel, so their equivalent resistance is given by
The voltage drop across each resistor is the same, and it is equal to the voltage of the battery:
while the current across each resistor is given by Ohm's law: