QUESTION ONE a) A furlong is 220 yards, a mile is 1760 yards or 1609 meters, and a fortnight is 14
days. In 1991, the Zambian athlete, Samuel Matete won an Olympic gold medal, in
Zurich, Switzerland, when he represented Zambia in the 400 m hurdles. His average
speed was 8.5 meters per second. Express his speed in
(i) kilometer per hour
(ii)mile per hour
(iii)furlong per fortnight.

​

What is the final velocity of the initial velocity of 25 and -50?

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.

Many science fiction movies and tv shows have detected using a nuclear weapon to destroy astroids what problems does plait see with this plan