PLEASE HELP!! Which of the following describes the overall ability of your cardiovascular and respiratory systems to function well in vigorous exercise?
A. aerobic capacity
B. anaerobic fluency
C. anaerobic capacity
D. aerobic fluency

The four giant gas points that are made primarily of lightweight elements are

Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .

Aplane travels 1000 miles in 5 hours .what is the planes average speed?