More waves!

Today we used the equations V=fλ which is wave speed equals frequency (in Hertz) times lambda (wavelength). We looked at a stretch of string connected to a wave driver and a pulley.By increasing the frequency, you directly increase the velocity, but frequency and wavelength have an indirect relationship meaning as one goes up, the other goes down. We were also able to count the nodes that were unmoving and the antinodes which were vibrating up and down, but the amount of wavelengths is less than both because it is the distance from one spot to another of the same equilibrium. 

An object's "natural frequency" is the frequency an object wants to vibrate at and resonance is the overall adding of wave energies. Sound is a longitudinal wave that needs a medium (what it travels through), without a medium, it cannot exist! The speed of sound is relatively constant. The equation for this is Vs=331m/s+Tc(0.6). 331m/s stands for the speed of sound at zero degrees celsius and Tc is temperature in celsius. Temperature is average kinetic energy, or energy in motion. The speed of sound in the air at room temperature in Hawaii would be approximately 346m/s. Here's how to do it:
Vs=331m/s+Tc(0.6)
85 degrees Fahrenheit=~24.4 degrees Celsius
Vs=331m/s+24.4(0.6)
So the answer comes out to 331+14.64=345.64 or 346m/s!
We also calculated percent error which is ltest-acceptl / accept. So if our experimented speed of sound product was 328 we can set it up like this
l328-346l / 346 = 0.052 so move it over two decimal places and you get ~5% percent error!