If you take any pitch on the keyboard, the next occurrence of the same letter name going towards the left (down) will vibrate:

Select one:
A. Twice as slow
B. Twice as fast
C. At 256 Hz plus the harmonic of the first pitch
D. At twice the speed minus the square root of the first pitch.

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?