Waves: Destructive Interference During destructive interference, are the wave pulses are bouncing off of each other, or passing through?

(I'm not allowed to put an actual link in, so it's just a picture of the link.)

Un jugador de beisbol batea un foul recto en el aire. la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher

What is the angular momentum of the bar about the axle?

What effects result when there is an impact between earth and an asteroid? check all that apply. a. massive flooding. b. extinction of many life forms. c.major earthquakes change in average global temperature. d. giant dust cloud