The sun is a medium-size star with average luminosity and temperature. which statement describes the relationship between two stars if their apparent magnitude is the same? a. the luminosities must be the same. b. the luminosities and distances can both be different. c. the distances from us must be the same. d. the luminosities and distances must be the same.

Apparent magnitude of a star is indicative of the brightness of that star from a specific distance. Two stars can have the same apparent magnitude from the Earth if both of them have same luminosity and if both of them are situated at the same distance from Earth. When the two stars are present at different distances from the Earth, the apparent magnitude can be same if the luminosity varies, for example a star close to the Earth with a relatively lower luminosity may appear as bright as a star with a high luminosity present relatively far away.

Correct B

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.