According to the laws of thermal radiation, hotter objects emit photons with .
a) a lower average frequency
b) a shorter average wavelength
c) a higher average speed
d) a lower average energy

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)