What begins when the exercise intensity demands ATP production at a higher rate than the energy systems can supply it? A
Lactic acid
OB.
Muscle fatigue
Ос.
The ATP-PC system
OD
VO2 max

The substances that are necessary for producing of certain hormones and that store and transport vitamins

How many atoms of nitrogen are in the chemical formula ni(w on

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s