Visible light passes through a diffraction grating that has 900 slits/cm and the interference pattern is observed on a screen that is 2.76 m from the grating. you may want to review (pages 1197 - 1201) . for related problem-solving tips and strategies, you may want to view a video tutor solution of width of a grating spectrum. part a is the angular position of the first-order spectrum small enough for sinθ≈θ to be a good approximation? is the angular position of the first-order spectrum small enough for to be a good approximation? yes no request answer

their crystal patterns have been disrupted by stress

answer: the potential energy decreases from 379 j to 243 j

explanation:

for the law of conservation of energy, the total energy in a system must be conserved. the total energy of the system is given by the sum of kinetic (k) and potential (u) energy:

e = k + u

the total energy is e=675 j, and this does not change.

initially, the kinetic energy is k=296 j, so the potential energy is

at the end, the kinetic energy is k=432 j, so the potential energy is

so, we see that the potential energy has decreased from 379 j to 243 j.