Friction slows things down. For example when you are putting on breaks in a car the friction causes the car to stop because you are putting pressure on the shoe and drum.
Friction goes against applied force works against it causing the object motion to slow down.<span />
Energy production depends on metabolic pathway and ATP yield, with fats having the highest ATP yield with ketone bodies,followed by Carbohydrates then proteins.
Energy produced by one glucose molecule yields final ATP of 5-7 through glycolysis and 17-25 through citric cycle.
Proteins energy prooduction is considered to be more healthy because unlike fats and carbohydrates they are not stored but used up immediately by the body.
I hope this is will help
Target Heart Rate: is the maximum number of times your heart should beat per minute during exercise.
A) is for RHR (Resting Heart Rate) it is when you wake up.
D) You can't purchase your heart rate at a target store
C) is the correct answer because B) your target heart rate can be for ANY activity.
