Meg, Sandy, Chang, and Nathan used different methods to protect themselves from over-exposure to the sun. Their methods are listed below: Meg: Use a sun tanning or UV tanning booth instead of staying on the beach for long hours Sandy: Stop all outdoor activity and always stay indoors Chang: Apply sunscreen half an hour before going out and reapply every 2 hours Nathan: Use sunscreen with very low SPF once per day Who used the best method for daily activity?

Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

How hot is the suns corona? (integrated science)

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.