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This is the hypertext markup language version of the file http://central.spps.org/uploads/78_hrw_0506.rtf. Google automatically generates html versions of documents as we crawl the web. AP Physics    Chapters 7 & 8 reexamine Sheet    1.| Which of the following is NOT a pay unit for clip?| A)| erg| | B)| ft?lb| | C)| watt| | D)| newton? bar| | E)| joule| |     2.| A boy holds a 40-N weight at arms length for 10 s. His arm is 1.5 m higher up the ground. The work done by the persuasiveness of the boy on the weight while he is holding it is:| A)| 0| | B)| 6.1 J| | C)| 40 J| | D)| 60 J| | E)| 90 J| |     3.| An object moves in a circle at immutable expedite. The work done by the centripetal army is delusive because:| A)| the displacement for each revolution is zero| | B)| the average force for each revolution is zero| | C)| there is no scratch| | D)| the magnitude of the acceleration is zero| | E)| the centripetal f orce is honorable to the velocity| |     4.

| The work done by gravity during the billet of products of a projectile is:| A)| positive| | B)| interdict| | C)| zero| | D)| depends for its sign on on the direction of the y axis| | E)| depends for its sign on the direction of both the x and y axes| |     5.| Aline berate to the shortstop is caught at the same height as it was in the first place hit. Over its entire flight the work done by gravity and the work done by air resistance, respectively, ar:| A)| zero; positive| | B)| zero; damaging| | C)| positive; negative| | D)| negative; positive| | E)| negative; negative| |     6.| A cleav e (including load) weighs 5000 N. It is pull! ed on level snow by a go after team exerting a horizontal force on it. The coefficient of energizing friction between sled and snow is 0.05. How a great deal work is done by the dog team draw the sledge 1000 m at constant speed?| A)| 2.5 ? 104 J| | B)| 2.5 ? 105 J| | C)|...If you want to get a in force(p) essay, order it on our website: OrderEssay.net

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