An 80 kg man stands in an elevator. What force does the floor of the elevator exert on the man ifa) the elevator is stationary? b) the elevator accelerates upward at 2 m/s2? c) the elevator rises...
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A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below). (a) What is his average velocity for the first 4 s? m/s (b) What is his instantaneous velocity at ...
A golfball with an initial speed of 50 m/s lands exactly 240 m downrange on a level course. a) Neglecting air friction, what two projection angles would achieve this result? b) What is the maximum...
I need 2 or 3 paragraphs on the below topic and replies to two peer posts. Peer post replies should be directed at the peer. There is no question that the Earth is warmer than it was just a few...
this is a website to use for an infographic https://www.canva.comt. my topic is whales Upload a PDF or PNG of your infographic ONLY here. Submit your short essay and your reference list to the...
I confuse the terms Ionic and covalent bonding and I am preparing for my final high school year. i know that i have to compile my notes for my revision late in the...