Samantha is coaching a college volleyball team. according to research conducted by james maas and rebecca robbins (2010), which would be the most optimal time for samantha to hold practice?

The answer is between 5 and 7 pm. According to Dr. James B. Maas and Rebecca S. Robbins, that time slot is the best time for athletic activity because it improves the depth of sleep of students at night (In their research, they stated that the optimal amount of sleep time is 8 to 10 hours for a teenager). They also found out that between the 6th and 8th hour of sleep, the brain gets in a state that enhances muscle memory significantly, which combined with better overall sleep, will result in better athletic performance.

i am a priest who cares deeply about the church. i have been called here to explain my views on indulgences and other proposed reforms. i would like to explain why my views are consistent with the bible and are correct.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals