6. Ming and Wong are playing a game of table tennis in the recreation car of a train: Each boy hits the
with a speed of 20 m/s.
a) If the train is traveling at 30 m/s, describe the speed of the ball as seen by an
observer standing on the ground behind the railroad crossing guardrail.
b) How would Ming and Wong describe the ball's speed?

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

Could someone . i have tried to solve myself but my calculation is off

Find the equation for the plane through upper p 0 left parenthesis negative 4 comma negative 8 comma negative 5 right parenthesis perpendicular to the following line. xequalsnegative 4 minus t, yequalsnegative 8 plus 2 t, zequals3 t, minusinfinityless thantless thaninfinity