C is the answer hope that helps you
A :-) F = ma
Given - m = 95 kg
a = 2.2 m/s^2
Solution -
F = ma
F = 95 x 2.2
F = 209
.:. The force is 209 N
When crest of one wave interferes with the trough of other wave, the amplitude of the resultant wave formed is less. Hence the type of interference is destructive interference.
Answer:
The length of the stick is 0.28 m.
The time the stick take to move is 0.97 ns.
Explanation:
Given that,
Relative speed of stick v= 0.96 c
Speed of light ![c= 2.99793\times10^{8}\ m/s](https://tex.z-dn.net/?f=c%3D%202.99793%5Ctimes10%5E%7B8%7D%5C%20m%2Fs)
Proper length of stick = 1 m
We need to calculate the length of the stick
Using formula of length
![\Delta l=\Delta l_{0}\sqrt{(1-\dfrac{v^2}{c^2})}](https://tex.z-dn.net/?f=%5CDelta%20l%3D%5CDelta%20l_%7B0%7D%5Csqrt%7B%281-%5Cdfrac%7Bv%5E2%7D%7Bc%5E2%7D%29%7D)
Put the value into the formula
![\Delta l=1\sqrt{1-\dfrac{(0.96)^2c^2}{c^2}}](https://tex.z-dn.net/?f=%5CDelta%20l%3D1%5Csqrt%7B1-%5Cdfrac%7B%280.96%29%5E2c%5E2%7D%7Bc%5E2%7D%7D)
![\Delta l=1\sqrt{1-(0.96)^2}](https://tex.z-dn.net/?f=%5CDelta%20l%3D1%5Csqrt%7B1-%280.96%29%5E2%7D)
![\Delta l=0.28\ m](https://tex.z-dn.net/?f=%5CDelta%20l%3D0.28%5C%20m)
We need to calculate the time the stick take to move
Using formula of time
![t=\dfrac{\Delta l}{v}](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7B%5CDelta%20l%7D%7Bv%7D)
Put the value into the formula
![t=\dfrac{0.28}{0.96\times(2.99793\times10^{8})}](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7B0.28%7D%7B0.96%5Ctimes%282.99793%5Ctimes10%5E%7B8%7D%29%7D)
![t=9.72\times10^{-10}\ sec](https://tex.z-dn.net/?f=t%3D9.72%5Ctimes10%5E%7B-10%7D%5C%20sec)
![t=0.97\ ns](https://tex.z-dn.net/?f=t%3D0.97%5C%20ns)
Hence, The length of the stick is 0.28 m.
The time the stick take to move is 0.97 ns.