Why don't blackbody radiators emit high-energy radiation when they absorb more and more energy?
A. The energy is lost by the atoms of the blackbody radiator to a
greater degree at higher energy levels.
B. Their atoms can only parcel out the emitted radiation in more
packages (photons) with low energy, not packages of high energy.
C. The higher energies are always absorbed by breaking bonds
between atoms rather than being radiated back.
D. The higher energies are always converted to internal kinetic energy
of the material rather than being radiated back.

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?

Explain why electric current cannot exist if a current doesn't have a voltage source.

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.