An isotonic contraction can be concentric, which is where the muscle shortens as the fibres contract or eccentric, where the fibres contract as the muscle lengthens. When a muscle contracts with no resulting movement, it is an isometric contraction. Page: 1  1. 2  2. 3  3. 4  4. 5  5. 6  Back.
how much propane will i use i will be building an ig pool and ig spa 7ft spa i will be heating the spa with a 400k btu propane heater i would like to heat the pool a couple of time per year for special events local code limits the size of a propane tank to 125 gallons anything bigger will require a permit from the fire dept
For our solar pool project, we wanted to calculate the Gallons Per Minute (GPM) Flow Rate that our 12 Volt pump was producing. As well, we found out what the... For our solar pool project, we wanted to calculate the Gallons Per Minute (GPM) Flow Rate that our 12 Volt pump was producing. As well, we found out what the temperature of the first gallon would be coming directly from the solar water heater. To Calculate GPM, we used the following formula.. (Number of gallons filled / Time in seconds to fill gallon) x 60 So in our case, we end up with the following equation= 1 gallon / 23 seconds = 0.0434, 0.0434 x 60 = 2.604, or roughly 2.6 GPM The pump produced 2.6 GPM of 113F water to our pool from the solar water heater, in the first gallon.