Middle c on a piano vibrates at 262 hz. the sound waves produced by this string have a wavelength in air of 1.30 m. what is the speed of the sound waves?

So velocity = 262 x 1.3 = 340.6 m/s

You've given us the wavelength and the frequency of the waves.

The only thing left for us to calculate is the speed of the waves.

Speed = (wavelength) x (frequency) = (1.3 m) x (256 / sec) = 332.8 m/s

This may or not be the accepted value for the speed of sound in air, but

it's consistent with the data you gave us.

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

sure im new too!

explanation: