Select all that apply. The spectrum of Star S is compared to a reference hydrogen spectrum. What can be concluded about Star S? Star S has radial motion.
Star S has transverse motion.
Star S is moving toward Earth.
Star S is moving away from Earth.

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.

You have 80 g of 60oc water and 80 g or 10oc water. what is the final temperature when the two are mixed? explain.

What radiation has a higher frequency than visible light