Asked by Laila solis

the volume v of a gas at a constant temperature varies inversely with the pressure p. when the volume is 100 cubic inches the pressure is 25 pounds per square inch. What is the pressure when the volume is 125 cubic inches?

30••
20
25
40


The length of a violin string varies inversely as the frequency of its vibrations. A violin string 10 inches long vibrates at a frequency of 512 cycles per second. Find the frequency of an 8-inch string.

409.6
512
640••
612

Answered by R_scott
1st one needs work

p v = k ... as volume goes up , pressure goes ?
Answered by Laila solis
Okay so I believe that the first one is 30 pounds per square inches I did my work and I got 31.25

And
2 . 409.6 cycles per second


Let me know if I’m correct
Answered by henry2,
1. (100/125 ) * 25 =

2. 10/8 * 512 = 640 cps.


Answered by idek
1. B 50
2. C 20
3. B 25
4. B 20 pounds per square inch
5. C 640 cycles per second
Answered by huskie
idek is correct!
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