Mohon bantuannya

<p>a. Amplitudo adalah simpangan terjauh dari titik kesetimbangan&nbsp;</p><p>&nbsp; &nbsp; &nbsp;A = 20/2 = 10 cm</p><p>&nbsp;</p><p>b. Panjang gelombang (𝞴)</p><p>&nbsp; &nbsp; &nbsp;n = 4,5</p><p>&nbsp; &nbsp; &nbsp;4,5𝞴 = 150&nbsp;</p><p>&nbsp; &nbsp; &nbsp;𝞴 = 150/4,5</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 33,33 cm = 100/3 cm</p><p>&nbsp;</p><p>c. frekuensi (f)</p><p>&nbsp; &nbsp; &nbsp;t = 0,25 = 1/4 sekon</p><p>&nbsp; &nbsp; &nbsp;n = 4,5 = 9/2</p><p>&nbsp; &nbsp; &nbsp;f = n/t</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = (9/2)/(1/4)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = (9/2) x 4</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = 18 Hertz</p><p>&nbsp;</p><p>d. Cepat rambat gelombang (V)</p><p>&nbsp; &nbsp; &nbsp;V = 𝞴 x f</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 100/3 x 18</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 600 cm/s</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</p><p>&nbsp;</p>