Assume that all four h-r diagrams below represent a star in different stages of its life, after it starts to fuse hydrogen in its core. rank the hr diagrams based on when each stage occurs, from first to last.

a. star in the sequence
b. a little outside
c. more outside
d. then below the line

Plss anybody know how to do this? ? i need the answers from a through d

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd question 6 options: 3000 joules 30 joules 320 joules 3200 joules