I thought I was suppose to add the two amplitudes to get the resultant amplitude but I wasn't sure if that was if they were right on top of each other. Doing this would make the ration 2:1 but I don't think that's right.
A nylon guitar string has a linear density of 9.0 g/m and is under a tension of 180.0 N. The fixed supports are L = 80.0 cm apart. The string is oscillating in the standing wave pattern shown in the figure. Calculate the speed of the traveling waves whose superposition gives this standing wave...
A sinusoidal wave of frequency 500 Hz has a speed of 350 m/s.
(a) How far apart are two points that differ in phase by Pi/3 rad?
I was thinking that I need to use the equation y= Asin(kx-wt+pi/3)
I found the wavelength=0.70m
used this to find k=8.98
solved for w by converting the...
String A is stretched between two clamps separated by distance L. String B, with the same linear density and under the same tension (i.e., having the same wave velocity) as String A, is stretched between two other clamps separated by distance 4L. Consider the first 8 harmonics of string B. For...
Two identical traveling waves, moving in the same direction, are out of phase by Pi/2 rad.
(a) What is the ratio of the amplitude of the resultant wave to that of the common amplitude of the waves
I'm having trouble with this problem because I feel like I'm not given enough information...
A physical pendulum consists of a meter stick that is pivoted at a small hole drilled through the stick a distance x from the 50. cm mark. The period of oscillation is observed to be 1.656 s. Find the distance x.
I know I have to find the moment of Inertia and I believe the equation for this...
The equation in my book is V(liq)/V(obj)=p(obj)/p(liq) and by the way I'm reading your explanation I feel like it's a proportion problem. However I'm not sure how to fit weight into a similar equation, unless there's something I'm forgetting. So the weight of n logs plus children is...
An iron ball is suspended by a thread of negligible mass from an upright cylinder that floats partially submerged in water. The cylinder has a height of 6.00 cm, a face area of 12.0 cm^2 on the top and bottom, and a density of 0.30 g/cm^3. 2.00 cm of its height is above the surface. What is the...
I already have the speed. 3.9m/s and I'm using the density of freshwater being 1.0e3 kg/m^3. I know I'm calculating something wrong I keep coming up with a huge number or a negative number for pressure which, can't be negative right? and needs to be less than 170 kPa.
A water pipe having a 2.5 cm inside diameter carries water into the basement of a house at a speed of 0.90 m/s and a pressure of 170 kPa. If the pipe tapers to 1.2 cm and rises to the second floor 7.6 m above the input point, what is the (a) speed, and (b) water pressure, at the second floor...
http://spock.physast.uga.edu/prtspool/bearhug_uga_printout_1163471689_22380_10.pdf
A rectangular block is gradually pushed faced-down into a liquid. The block has height d; on the bottom and top the face area is A=5.67 cm^2 . Also shown is a graph that shows the apparent weight W_app of the...
Okay so I took Dan's advice and added up children and logs to get a total force. What I did was I used D=M/V and solved for M to get the mass of the logs being 101.6kg. Then used F=mg to get the force which is 995.7N and added this to (356)(3)=1068N to get 2063.7N. I used the equation F=...