With what velocity must a 0.53 kg softball be moving to equal the momentum of a 0.31 kg baseball
moving at 21 m/s?

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

answer( sicar );