Deanna explains to wesley the different types of nitrogen in the nitrogen cycle. choose the sentences that she includes in her explanation. select all that apply. a. bacteria fix nitrogen from ammonia gas. b. nitrates in soil are taken up by plant roots. c. nitrifying bacteria convert ammonia to nitrates. d. herbivores eat plants to fix nitrogen gas from the air. e. nitrogen is found as a metal in the soil after it is fixed by bacteria.

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?