Star a has a magnitude of 2. star b has a magnitude of 5. what is the brightness ratio? a. 6.3 : 1 b. 15.8 : 1 c. 5 : 2 d. 2 : 5

In what layer of the sun is energy transfers between atoms

A60-tooth gear is connected to a 72-tooth gear. if the smaller gear turns 12 times, how many turns does the larger gear make?

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.