which of these could represent the third step of inquiry.
a) Andrew writes down what three loads of laundry look like before and after he washes them on the cold ,warm ,or hot setting.
b) Andrew predicts that the warm setting on the washing machine will get clothes the cleanest.
c) Andrew washes three separate loads of very dirty laundry; one on the cold setting, one on the warm setting, and one on the hot setting
d) Andrews wonders which temperature setting on the washing machine gets clothes the cleanest.

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

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.