For the diagram below, a siren is going off in the distance to the left. The diagram shows the diffraction of the siren's sound wave around the wall. If you were behind the wall (position labeled "X") what would you hear? wall spurd waves for source to the left, moving to the right. X O A. You would hear the siren, but the pitch would sound higher. O B. You would hear the siren and think it was located at the opening in the wall. O C. You would not hear anything because there is no sound wave at that position. O D. You would not hear anything, because the wall would block the sound of the siren.​

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.