a light year is the distance light will travel in a year which is a long long way light travels 186000 miles a second 300000 kilometers per second so a light second is 186000 miles 300000 kilometers
Best Answer: The ATP-PC system is use for around 10 seconds of an event, the ATP is use for 4-6 seconds before the creatine phosphate (CP) provides energy for a further 5 - 10 seconds. Weight lifting is the best example of a sport using the ATP-PC system.
ATP is the âmost widely distributed high-energy compound within the human body.â It is used to build molecules, contract muscles and generate electrical impulses in the nerves. All fuel sources, grown naturally, like fruits and vegetables produce ATP which in turn powers virtually every activity of the cell and organism[6].