The pressure on their bone, center of mass and balance , the amount of energy they burn.
energy
Weightlifters are actually working out. Lifting the weights up and then lowering them does put a strain on their muscles, which will make them stronger.
The difference between actual quantity and standard quantity is called the material quantity variance.
A quantity is how much of somethere is, and a estimate is a complete or educated guess. If you know the actual quantity, then it isn't a guess. So i guess the difference is one is a guess and one is not.
item actual cost estimated cost unit quantity description
Accuracy
Actual sales (quantity ) = flexible budget sales (quantity ) , because the flexible budget is prepared based on the actual activity level (units sold ) to avoid misleading of compering the static budget sales and actual sales
The equilibrium quantity supplied is lower than the actual quantity supplied. The market price is below the equilibrium price.
There is no proof of either and "it" is an undefined quantity.
Price Variance
Pipette ?
Difference between BOQ cost and actual cost (after execution)
It's the similarity I think.