Which three characteristics make iron a good blackbody radiator? A. It emits several different wavelengths of EMR.
B. It does not emit EMR when hot.
C. It absorbs much of the EMR it receives.
D. It changes color when exposed to EMR that heats it.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.

If a balloon is taken outside on a very cold day, what will occur?