During an observation, it was noticed that light travels as bundles containing certain amounts of energy. What does this evidence reveal about light?

A. It travels at a finite speed.

B. It demonstrates a behavior of particles.

C. It travels through the vacuum of space.

D. It demonstrates a behavior of forces.

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to