Recent content by beastysk8er

Homework Statement Two adjacent sources each emit frequency 800 hz in air (340 m/s). how far would source 1 have to be moved so an observer in front of the sources would hear no sound? .321 .213 .123 or .312. Homework Equations f' = f/(1+ vsource/vsnd) The Attempt at a Solution i...

Homework Statement A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the ball? Homework Equations change in momentum = mv2 - mv1 The Attempt at a Solution Do you take 24 as negative or...