An astronaut in space walked away from the shuttle. She has to get back to the shuttle, but she can't reach it to grab and pull to get closer. How could you use Newton's third law to produce acceleration toward the shuttle?

She probably is carrying some heavy tools like a wrench or a screwdriver, because astronauts usually spacewalk in order to do repairs or build new stuff on the outside of the shuttle. She can throw one or more of these tools with as much force as she can in the direction away from the shuttle. Then because of Newton's Third Law (every action has an equal and opposite reaction), her body will move in the opposite direction -- towards the shuttle.

Explanation:

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

a would be the answer