Why can’t I see the video to see the answer I think those might be a glitch
Explanation:
Given that,
The x-component is 8 m/s east and y-component is 14.5 m/s North.
(a) As both x and y components are perpendicular to each other. Their resultant is given by :
![R=\sqrt{x^2+y^2} \\\\R=\sqrt{(8)^2+(14.5)^2} \\\\R=16.56\ m/s](https://tex.z-dn.net/?f=R%3D%5Csqrt%7Bx%5E2%2By%5E2%7D%20%5C%5C%5C%5CR%3D%5Csqrt%7B%288%29%5E2%2B%2814.5%29%5E2%7D%20%5C%5C%5C%5CR%3D16.56%5C%20m%2Fs)
(b) Let
is the resultant vector. So,
![\tan\theta=\dfrac{y}{x}\\\\\theta=\tan^{-1}(\dfrac{y}{x})\\\\\theta=\tan^{-1}(\dfrac{14.5}{8})\\\\\theta=61.11^{\circ}](https://tex.z-dn.net/?f=%5Ctan%5Ctheta%3D%5Cdfrac%7By%7D%7Bx%7D%5C%5C%5C%5C%5Ctheta%3D%5Ctan%5E%7B-1%7D%28%5Cdfrac%7By%7D%7Bx%7D%29%5C%5C%5C%5C%5Ctheta%3D%5Ctan%5E%7B-1%7D%28%5Cdfrac%7B14.5%7D%7B8%7D%29%5C%5C%5C%5C%5Ctheta%3D61.11%5E%7B%5Ccirc%7D)
Hence, the resultant is 16.56 m/s and the angle of the resultant vector is 61.11 degrees.
Answer:
The speed of the wave is ![f_{1}2L](https://tex.z-dn.net/?f=f_%7B1%7D2L)
Explanation:
Given that,
Frequency = f
String length = l
We need to drive a formula of the speed of the wave
Using formula of fundamental frequency
![f=\dfrac{v}{\lambda}](https://tex.z-dn.net/?f=f%3D%5Cdfrac%7Bv%7D%7B%5Clambda%7D)
We know that,
![\lambda=2L](https://tex.z-dn.net/?f=%5Clambda%3D2L)
![f=\dfrac{v}{2L}](https://tex.z-dn.net/?f=f%3D%5Cdfrac%7Bv%7D%7B2L%7D)
Where, v = speed of wave
= wavelength of the wave
f = frequency
The speed of the wave is
![v=f_{1}2L](https://tex.z-dn.net/?f=v%3Df_%7B1%7D2L)
Hence, The speed of the wave is ![f_{1}2L](https://tex.z-dn.net/?f=f_%7B1%7D2L)
Answer:
Compound.
Explanation:
A compound is a substance formed when two or more elements are chemically joined. Water, salt, and sugar are examples of compounds. When the elements are joined, the atoms lose their individual properties and have different properties from the elements they are composed of.