Answer:
the awnser is momentum i did this before
Explanation:
Answer:
![\Delta V=\lambda *ln(r_{2}/r_{1}) /\ (2\pi*\epsilon_{o})](https://tex.z-dn.net/?f=%5CDelta%20V%3D%5Clambda%20%2Aln%28r_%7B2%7D%2Fr_%7B1%7D%29%20%2F%5C%20%282%5Cpi%2A%5Cepsilon_%7Bo%7D%29)
Explanation:
Using the Gauss Law, we obtain the electric Field for a uniform large line of charge:
![2\pi r L*E=\lambda *L/\epsilon_{o}](https://tex.z-dn.net/?f=2%5Cpi%20r%20L%2AE%3D%5Clambda%20%2AL%2F%5Cepsilon_%7Bo%7D)
![E=\lambda /\(2 \pi* r *\epsilon_{o})](https://tex.z-dn.net/?f=E%3D%5Clambda%20%2F%5C%282%20%5Cpi%2A%20r%20%2A%5Cepsilon_%7Bo%7D%29)
We calculate the potential difference from the electric field:
![\Delta V=-\int\limits^{r_{1}}_{r_{2}} E \, dr =-\int\limits^{r_{1}}_{r_{2}} \lambda dr/ (2\pi*r*\epsilon_{o})=\lambda *ln(r_{2}/r_{1}) /\ (2\pi*\epsilon_{o})](https://tex.z-dn.net/?f=%5CDelta%20V%3D-%5Cint%5Climits%5E%7Br_%7B1%7D%7D_%7Br_%7B2%7D%7D%20E%20%5C%2C%20dr%20%3D-%5Cint%5Climits%5E%7Br_%7B1%7D%7D_%7Br_%7B2%7D%7D%20%5Clambda%20dr%2F%20%282%5Cpi%2Ar%2A%5Cepsilon_%7Bo%7D%29%3D%5Clambda%20%2Aln%28r_%7B2%7D%2Fr_%7B1%7D%29%20%2F%5C%20%282%5Cpi%2A%5Cepsilon_%7Bo%7D%29)
Answer:
L = 2.83 J.s
Explanation:
The formula for the angular momentum of the stone is given as follows:
L = mvr
where,
L = angular momentum of the stone = ?
m = mass of the stone = 0.1 kg
v = linear velocity of the stone = rω
r = radius of circular path = 1.5 m
ω = angular speed of the stone = (2 rev/s)(2π rad/1 rev) = 4π rad/s
Therefore,
L = mvr = m(rω)r
L = mr²ω
using values, we get:
L = (0.1 kg)(1.5 m)²(4π rad/s)
<u>L = 2.83 J.s</u>
The answer to your question is the Origin
Answer: The correct answer is option(d).
Explanation:
The light given by the combination of the all the seven colors is white color.
Generally white light splits into the band of seven colors when passed through the prism which is known as spectrum.
When the Anna shines a beam of light that includes all the wavelengths of visible light onto the wall she will observe the white light on the wall of the darken room.
Hence, the correct option is (d).