Answer:
Explanation:
We know that at pointed corner of a conductor , charge accumulate ie electric field is maximum . Ar pointed corner , radius of curvature will be least . That is why charge leakage is greatest at pointed corner of a charged conductor.
a ) Electric field will be 26.0 kN/C at the point where radius of curvature is greatest .
b ) So electric field will be 66 kN /C at the point where radius of curvature is smallest .
False. You don’t want to over work yourself :) start at a level you are comfortable with and continue with making it more and more harder. EX: you can run around your block and you feel tired but refreshed. Do it everyday until you feel like you can go further
the answer is b trust me its b
Answer:
The speed of the laser light in the cable,
Explanation:
It is given that,
Wavelength of Argon laser,
Refractive index, n = 1.46
Let is the speed of the laser light in the cable. The speed of light in a medium is given by :
or
So, the speed of the laser light is . Hence, this is the required solution.
Answer:
4.3 m/s² ( approx )
Explanation:
Velocity of local elevator with respect to express elevator initially is 2.1 mps
After 2.7 seconds , the gap between them is
2.7 x 2.1 = 5.67 m
The express elevator begins with acceleration . At the time of catching up
velocity of local with respect to express is - 9.5 m /s .That means velocity of
express with respect to local will be 9.5 m/s .
Relative velocity of express is 9.5 m/s
Absolute velocity of express is 9.5 + 2.1 = 11.6 m/s
Acceleration of express = change in velocity / time
= ( 11.6 -0)/ 2.7 = 4.3 m/s² ( approx )