When water is boiled at a pressure of 2.00 atm, the heat of vaporization is 2.20×106J/kg and the boiling point is 120∘C. At this pressure, 1.00 kg of water has a volume of 1.00×10−3m3, and 1.00 kg of steam has a volume of 0.824m3.(a) Compute the work done when 1.00 kg of steam is formed at this temperature. (b) Compute the increase in internal energy of the water.

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.