Ageologist finds a section of rock that shows was ripple marks. what does it he pr send me or a ripple marks say about the area where the rock formed? a. the rock from rk s in a fast moving stream b. the rock formed under earths surface at very high temptress c. the rock formed from mollusk shells. d. the rock was blown out of a volcano

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?