Question
The equation of a wave is given by $y = 10 \sin \left(\frac{2\pi}{45} t + a\right)$. If the displacement is 5 cm at $t = 0$, then the total phase at $t = 7.5$ sec. is ...........
The equation of a wave is given by $y = 10 \sin \left(\frac{2\pi}{45} t + a\right)$. If the displacement is 5 cm at $t = 0$, then the total phase at $t = 7.5$ sec. is ...........