Two stars of the same size are observed. Star A has a peak wavelength of 3000 Angstroms, while Star B has a peak wavelength of 6000 Angstroms. Which statement is true?

a. Star A is 3000K; Star B is 6000K; Star B is twice as luminous as Star A
b. Star A is 3000K; Star B is 6000K; star B is 16x as luminous as star A
c. Star A is 10,000K; Star B is 5000K; Both stars have the same luminosity because they are the same size
d. Star A is 10,000K; Star B is 5000K; Star A is 16x as luminous as Star B
e. Star A is 10,000K; Star B is 30,000K; Star B is 9x as luminous as Star A

According to the phase diagram for water, how is the state of water determined? proceed up a vertical line at any given temperature read the phase at the intersection of any given temperature and pressure at a given pressure, proceed horizontally to the s-l or l-g line

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?