What is the ratio of the average velocity of hydrogen molecules to that of neon atoms at the same temperature and pressure?

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?