W A diffraction grating of width 4.00 cm has been ruled
with 3 000 grooves/cm. (a) What is the resolving power of
this grating in the first three orders? (b) If two monochromatic waves incident on this grating have a mean
wavelength of 400 nm, what is their wavelength separation
if they are just resolved in the third order?

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i. e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i. e. include the distance traveled to the first encounter)

The energy produced as a result of this flow of electrons from atom to atom is called

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2