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

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?