David hops in his 600-kg dune buggy and travels 20 m/s to the east.  meanwhile, serap drives her 500-kg dune buggy at 30 m/s east and tries to catch david.

what is davids momentum?

what is serap's momentum

what is the total momentum of the entire system?

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.

Domain eukarya; kingdom plantae should be the answer.

Answerboth technicians (a) and (b);