Four different objects are placed on a number line at 0. The chart describes the motion of each object.

x

Y

Object

Motion

w

3 units left, then 3 units right

6 units right, then 18 units right

8 units left, then 24 units right

16 units right, then 8 units left

Using the information in the chart, the distance and displacement of each object can be determined. Which objec

distance that is three times as great as its displacement?

Ow

X

>

N

Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.