If light excites atomic hydrogen from its lowest energy level to the n = 12 level, what is the energy of the photons of this light?
A) 13.5 eV
B) 32.2 eV
C) 13.6 eV
D) 0.0944 eV
E) 1.13 eV
Question 2
A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the momentum during the collision are correct? (There could be more than one correct choice.)
A) The momentum of the truck is conserved.
B) The momentum of the car is conserved.
C) The car and the truck must undergo the same change in speed.
D) The momentum of the car and the momentum of the truck are each conserved.
E) The momentum of the car-truck system is conserved, but the momentum of each one separately is not conserved.
A light-coloured cane toad
Light palpation of abdomen
Effect of the activation energy barrier.
Upper-Level Maps
Energy passes among trophic levels
Energy Transfer