This means that the battery is discharged down to 10.5 volts over a 20 hour period while the total actual amp-hours that it supplies are measured. Sometimes ratings at the 6 hour rate and 100 hour rate are also given for comparison and for different applications.
Pool meets are usually no more than 4 hours, but beach meets last about 7 hours. It depends how many events are in the meet. And then if it is a really big meet (like a tournament kind of) it can last days. Hope that helps.
We can't tell a parent or child exactly when they're going to learn to swim, Williams said. It's a learning experience in and around the water.. The Red Cross has a similar approach. Though its parent-and-baby classes start at age 6 months, it doesn't start teaching kids to swim solo until about age 5. But at Swimtastic Swim School instructors teach classes for babies 6 months to 2 years, with the goal that they swim 5 to 10 feet independently by the end of the advanced course.