Answer:
(a) E=λ/(2\pi e0 r)
(b) E = 0
Explanation:
(a) We can use the Gaussian's Law to calculate the electric field at any distance r from the axis. By using a cylindrical Gaussian surface we have:
where λ is the total charge per unit length inside the Gaussian surface. In this case we have that the Electric field vector is perpendicular to the r vector. Hence:
(b) outside of the outer cylinder there is no net charge inside the Gaussian surface, because charge of the inner radius cancel out with the inner surface of the cylindrical conductor.
Hence, we have that E is zero.
hope this helps!!
C. Radiation Hope this helps and You're welcome. :3
speed of sound wave depends on elasticity of medium and density of medium
it is given by formula
now if wave travel through solid then its speed is maximum while if it travel from gas then its speed is minimum
so initially its speed is given as 4000 m/s and suddenly decrease to 1500 m/s
so here we can say that its medium will change from solid to liquid
<em>so sound will encounter with water </em>
From the term itself extrasolar, this refers to the planet that revolves around a star outside from our own solar system. And the evidence that would show an existence of an extrasolar planet is a low-mass object as indicated in the Doppler-shifted stellar spectrum and physics calculation. The answer is option A.
Your bedroom door squeaks when you open or close it. You drive your boat through waves. These are correct. Have a great day!