An astronaut in her space suit has a mass of 87.0 kg. her tether loses its attachment to her spacecraft while she is on a spacewalk. initially at rest (with respect to her spacecraft) she throws her oxygen tank, which has a mass of 12.0 kg, away from her spacecraft with a speed of 8.00 m/s to propel her back towards it. (a) determine the maximum distance she can be from the craft and still return withn 2.00 min( the amount of time the air in her helmet remains breathable). (b) explain in terms of newton's laws of motion why this strategy works.

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.