A diffraction grating with 750 slits per mm is illuminated by light which gives a first-order diffraction angle of 34. 0 ∘.

What happens to the composition of an atom to cause it to become positively or negatively charged?

The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.

Which phases do not always fill their containers? select all that apply a. solid b. liquid c. gas