a student learns that the sun is classified as a medium-size star and that many stars are much bigger and brighter. however, the student observes that other stars look very dim, even through a telescope. why do other stars look much dimmer than the sun?

The third hammer 8 pounds

Answershe should not have multiplied the sulfur atoms by the subscript 4

Lexy is correct because angle r is between the incident wave,  n  = 0, and a diffracted wave.

Each student aligns the edge of the object with the left edge of the ruler as shown above. all four students read the ruler with a measurement of 4.6 cm. which statement describes the data they collect? i believe the answer is: the data have poor precision and poor accuracy because of a systematic error.