Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief time—called pulsed lasers. they are used to ignite nuclear fusion, for example. such a laser may produce an electromagnetic wave with a maximum electric field strength of 1.52\times 10^{11}~\text{v/m}1.52×10 11 v/m for a time of 1.00 ns. what energy does it deliver on a 1.00~\mathrm{mm^2}1.00 mm 2 area?

Most short-period comets do not have randomly oriented orbits because

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c

What is part of a line has one endpoint and continues in one direction?