Answer:
B. interactive
Explanation:
newtons first law is inertia his second is acceleration and third is interactive.
The basic relationship between frequency, wavelength and speed of a wave is given by
![v=\lambda f](https://tex.z-dn.net/?f=v%3D%5Clambda%20f)
where
v is the wave speed
f is its frequency
![\lambda](https://tex.z-dn.net/?f=%5Clambda)
is its wavelength
Re-arranging the equation and using the data of the problem, we find the frequency of the wave:
Answer:
I would say D
Explanation:
The dependent variable is the thing that is measured when the independent variable is changed by us.
The independent variable would be the type of disinfectant so after you use the disinfectant you would measure the amount of bacteria meaning the answer would be D
I think it will go down like decrease minus or whatever you call it
Answer:
a=0.212 m/s²
Explanation:
Given that
q= 10⁻⁹ C
m = 5 x 10⁻⁹ kg
Magnetic filed ,B= 0.003 T
Speed ,V= 500 m/s
θ= 45°
Lets take acceleration of the mass is a m/s²
The force on the charge due to magnetic filed B
F= q V B sinθ
Also F= m a ( from Newton's law)
By balancing these above two forces
m a= q V B sinθ
![a=\dfrac{qVB\ sin\theta}{m}](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7BqVB%5C%20sin%5Ctheta%7D%7Bm%7D)
![a=\dfrac{10^{-9}\times 500\times 0.003\times\ sin45^{\circ}}{5\times 10^{-9}}\ m/s^2](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7B10%5E%7B-9%7D%5Ctimes%20500%5Ctimes%200.003%5Ctimes%5C%20sin45%5E%7B%5Ccirc%7D%7D%7B5%5Ctimes%2010%5E%7B-9%7D%7D%5C%20m%2Fs%5E2)
![a=\dfrac{10^{-9}\times 500\times 0.003\times\dfrac{1}{\sqrt2}}{5\times 10^{-9}}\ m/s^2](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7B10%5E%7B-9%7D%5Ctimes%20500%5Ctimes%200.003%5Ctimes%5Cdfrac%7B1%7D%7B%5Csqrt2%7D%7D%7B5%5Ctimes%2010%5E%7B-9%7D%7D%5C%20m%2Fs%5E2)
a=0.212 m/s²