Allie was in the park playing on the equipment. She noticed that on the highest slide, she slides down es )
A)
without friction.
B)
with the slowest speed.
09
with the greatest speed.
D)
at about the same speed as the shortest slide.

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656(red) and 486 (blue). light from a hydrogen lamp illuminates a diffraction grating with 500 lines per mm, and the light is observed on a screen 1.50 behind the grating. what is the distance between the first-order red and blue fringes?