Ayuda es para ahora :((

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.