When you push downward on earth to make a pole vault, does earth exert an equal source on the pole?

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid