8x 4 = 32
7-4 = 3
3x3 =9
8-3=5
5x 3 = 15/2 = 7.5
32+9+7.5 =48.5 cm
Answer:
![60\sqrt{3 \\ }](https://tex.z-dn.net/?f=%2060%5Csqrt%7B3%20%5C%5C%20%7D%20)
Step-by-step explanation:
in a cube, the diagonal is the length of a side times square root of 3
The kitten gained 21 ounces. 2 pounds is equal to 32 ounces, 32 + 3 = 35 and 56 - 35 = 21 ounces
Answer:
t = 1.47 s
Step-by-step explanation:
y(x,t) = 0.6 sin (8 x – 24 t )
compare it with
y = A sin (k x - ω t)
now, A = 0.6
k = 8
ω = 24 rad/s
we know ω = 2πf
![f=\dfrac{24}{2\pi}](https://tex.z-dn.net/?f=f%3D%5Cdfrac%7B24%7D%7B2%5Cpi%7D)
![k=\dfrac{2\pi}{\lambda}\\\lambda = \dfrac{2\pi }{8}](https://tex.z-dn.net/?f=k%3D%5Cdfrac%7B2%5Cpi%7D%7B%5Clambda%7D%5C%5C%5Clambda%20%3D%20%5Cdfrac%7B2%5Cpi%20%7D%7B8%7D)
we know that
![v=\lambda f = \dfrac{2\pi }{8}\times \dfrac{24}{2\pi} = 3m/s](https://tex.z-dn.net/?f=v%3D%5Clambda%20f%20%3D%20%5Cdfrac%7B2%5Cpi%20%7D%7B8%7D%5Ctimes%20%5Cdfrac%7B24%7D%7B2%5Cpi%7D%20%3D%203m%2Fs)
time taken
t = distance/time
= 4.4 / 3
t = 1.47 s