Answer:
I think your soppose to multiply
Explanation:
Answer:
Energy stored in the capacitor will be ![1.835\times 10^{-6}J](https://tex.z-dn.net/?f=1.835%5Ctimes%2010%5E%7B-6%7DJ)
Explanation:
We have given edge length of capacitor = ![1.2\times 10^2cm=1.2m](https://tex.z-dn.net/?f=1.2%5Ctimes%2010%5E2cm%3D1.2m)
So area A = 1.2×1.2 = 1.44 ![m^2](https://tex.z-dn.net/?f=m%5E2)
Separation is given as d 1 mm = ![10^{-3}m](https://tex.z-dn.net/?f=10%5E%7B-3%7Dm)
We know that capacitance is given by ![C=\frac{\epsilon _0A}{d}=\frac{8.85\times 10^{-12}\times 1.44}{10^{-3}}=12.744\times 10^{-9}F](https://tex.z-dn.net/?f=C%3D%5Cfrac%7B%5Cepsilon%20_0A%7D%7Bd%7D%3D%5Cfrac%7B8.85%5Ctimes%2010%5E%7B-12%7D%5Ctimes%201.44%7D%7B10%5E%7B-3%7D%7D%3D12.744%5Ctimes%2010%5E%7B-9%7DF)
Voltage is given as V = 12 volt
We know that energy stored is given by ![E=\frac{1}{2}CV^2=\frac{1}{2}\times 12.744\times 10^{-9}\times 12^2=1.835\times 10^{-6}J](https://tex.z-dn.net/?f=E%3D%5Cfrac%7B1%7D%7B2%7DCV%5E2%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%2012.744%5Ctimes%2010%5E%7B-9%7D%5Ctimes%2012%5E2%3D1.835%5Ctimes%2010%5E%7B-6%7DJ)
Answer:
Its simple! B The ball accelerates upward!♡♡
Answer:
A. The wavelengths of the new sound waves are longer
Explanation:
This is the Doppler effect which can be best illustraded for the case of a siren of an ambulance approaching us having a greater frequency and getting lower in frequency and deeper as the ambulance passes us.
Since the wavelength is inversely proportional to the frequency it follows the wavelengths are longer when the frequency decreases lowering its pitch and getting deeper.