Physics
posted by Catherine .
An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?

Physics 
bobpursley
What is 28080?

Physics 
shaniqua
while running at 7mph directly toward patrick, lisa passes a basketball to him. patrick is stationary when he receives the ball, which is moving at a speed of 49 mph. how fast did lisa throw the ball?
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