Student in Need

Given the information which statements are true or false? We know that when we pluck a string on an instrument the resulting sound wave travels through the air at a speed of (about) 344 m/s. But the wave moving on the STRING itself doesn't have to travel...

I have to figure out if the following are true or false in order to solve an equation. But I am getting at least two wrong so I can't get the next one right. A)If you increase the tension in a string, the frequency of its fundamental vibration will get lo...

We're in class with a SIL decibel meter up front, and everyone is screaming at the top of their lungs, hooting and shouting and pounding on their desks, shooting off firecrackers, its Phys 1240 gone wild...and the meter is reading a reasonably steady soun...

A typical steel B-string in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.620 m. What is the wave velocity along the string? Find your answer in m/s. What is the formula to solve?

If the amplitude of a sound wave is quadrupled, by what factor will the intensity increase?

Two loudspeakers are 2.54 m apart. A person stands 3.04 m from one speaker and 3.50 m from the other. What is the lowest frequency at which destructive interference (sound cancellation) will occur at this point?

Your stereo is set to a sound intensity level (SIL) of 60 dB. I'd like to know what this means in terms of energy flow: what is the intensity of the sound wave this produces? Compute your answer in W/m2, but do not enter units. So in my problem it would b...

String instrument players can tune one string off of another - once you are happy with the tension and resulting pitch in one lower string, you put your finger down partway up the first string at the appropriate spot to make a higher pitch, one which shou...

Suppose that you and I are having a singing contest, and you produce a sound intensity (measured in W/ m2) about 32 times greater than mine. How many dB louder than me are you singing ? His is 30dB. For 79 times greater the answer is 19dB For 63 times gre...

A sailor strikes the side of her ship just below the waterline. She hears the echo of the sound reflected from the ocean floor directly below 2.00 s later. How deep is the ocean at this point? (Assume the velocity of sound in water is 1560 m/s, and enter...

Your niece is working on a unique science fair project - a clock built around a small mass vibrating on a little spring. Her prototype version is working ok, but it's running too slow. Given your experience in this course, you suggest to her that a stiffe...

How to you get to 1.378? Which is the answer> what calculations do you make? Your niece is working on a unique science fair project - a clock built around a small mass vibrating on a little spring. Her prototype version is working ok, but it's running too...

How are you getting 40%? Were does the 2.5 come from? I did this calculation on my calculator (the log part) and it came out to 25?

29.75m/s?