ࡱ> ONzakW7{y3T( h( F/ 0|DArialgsRomandd vׯ0"DVerdanasRomandd vׯ0" DTimes New Romandd vׯ00DWingdingsRomandd vׯ0@DSymbolgsRomandd vׯ0 A .  @n?" dd@  @@`` 4,3*   ()5      !"&') + ,-/1,r$kW7{y3Ti 0AA@8ʚ;ʚ;g4UdUd(ׯ0zppp@ <4dddd0vS0du <4BdBd0T0d0___PPT10 N___PPT90(  Work, Energy & Power QuizUMechanical Energy Work Power Conservation of Mechanical Energy Mechanical Efficiency 0UT91. Which of the following is a form of mechanical energy?$:'Ra) thermal energy b) solar energy c) translation kinetic energy d) chemical energySR X2. How much work is done to rise from a seat if the 45.0 kg person raises herself 35 cm?$Y IW )a) 15.75 J b) 154.5 J c) 1575 J d) 1545 JW3. How much energy does it take to stop a 5 kg projectile that is travelling at 65 m/s?.X ES+a) 162.5 J b) 325 J c) 10.56 kJ d) 21.2 kJ 64. Which of the following forces is NOT conservative? .7( oa) rigid lever and fulcrum b) friction of a level surface c) ideal spring d) tension in an ideal pendulum wire   L5. Which of the following is NOT an equation for computing mechanical power?$M;0a) P = M w b) P = W t c) P = DE / t d) P = F . v1  {6. What is the instantaneous power of a knee that exerts a 150 N force against a 35 cm lever that is rotating at 120 deg/s?*|  Z *a) 110 W b) 6300 W c) 11.00 kW d) 18.00 kW `7. How high must a 10 kg projectile be raised to achieve a velocity of 5 m/s when it is dropped?*a$$V$I*a) 0.500 m b) 0.509 m c) 2.55 m d) 1.274 mAnswerspc (translational kinetic) b (45 x 9.81 x 0.35) c (1/2 x 5 x 652) b (friction is non-conservative) b (P = W / t; P `" W t) a (150 x 0.35 x 120 x p/180) d (y = v2 /2 g = 52 /[2 x 9.81]) o>&   0` !3̙` Q.<ffff3` 3333fff` 3K=̙fff` 3fffff` ff3ff3` aNR>ff` 3fY33` 3f3f>?" dd@&?oAd(@n<)o<6=nA+7%Z', n?" dd@   @@``PR   = 7 ,`(p>> XP(    <ܔ #" `j  T Click to edit Master title style! !$  0ߔ "Pe  RClick to edit Master text styles Second level Third level Fourth level Fifth level!     SrB  # BCE6FGIIQU*VWX @`@$ G"  D0  `B  s *Dg "00  0 "^`  B*   0$ "^   D*   0 "^   D*   dA"޽h ?Light horizontal"` 3f3f___PPT10i. "+D=' = @B + Profile 0 (    <? #" `p ? T Click to edit Master title style! !  0? "p`  ? W#Click to edit Master subtitle style$ $  0