A tuba creates a 4th harmonic of frequency 116.5 Hz. What is the length of the pipe in the tuba? (Speed of sound = 343 m/s) (Unit = m)​

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.