Which best explains who is correct?
Lexy is correct because angle R is between the incident wave, n = 0, and a diffracted wave.
Lexy is correct because angle R includes the diffracted wave at n = 1.
Jin is correct because angle S is measured from the barrier and includes n = 2, the wave that has the most diffraction.
Jin is correct because angle S is between the dimmest order bands, n = 1 and n = 2.

28. evolution

29. environment, survive, offspring  

explanation:

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.

momentum of soft ball three times less than baskey ball