if a ball has a mass of 3kg and velocity of 1m/s , and the second ball has of 9kg and a velocity of -1m/s. what is the momentum of the first ball?

From the perspective of an employee that effective channeling of work related information and concerns

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?

Atoms seldom exist as independent particles in nature a) as single particles, most atoms have low potential energy b) their electronegativity is much lower when they combine with other atoms c) atoms are more stable when they combine with other atoms d) neutral particles are rare