The diagram shows the field lines near the poles, X and Y
of two magnets
Based on the field lines, what are the poles of the
magnets?
OX: north
Y south
O X. south
north
Xi north
north
o x south
Y south

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.