30 POINTS TO WHOEVER CAN FIGURE IT OUT!!When is the sun directly overhead at the equator?

A.
summer solstice
B.
winter solstice
C.
summer and winter solstices
D.
vernal and autumnal equinoxes

Plz mark brainliest 30 points1) 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?

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse