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Question:

What is the Mechanical Efficiency of this problem?

A crane moved a 200 kg hot tub from the ground to the top of the hotel, 53m above the groundIf the crane used 200,000 J of energy, how efficient was the crane?What is the Mechanical Efficiency of the crane and please show how you got the answer? Thanks.

Answer:

think of you are able to stand a splash historic previous? The preliminary weapons inspections by making use of the UN began in 1991, presently after the Gulf conflictSaddam had outfitted up an arsenal of chemical weapons and had used them before to kill an predicted 20,000 people, alongside with 5000 Iraqi KurdsHe used the two mustard gas and tabun, a nerve agentAs previous due as 1999, Iraq rejected yet yet another UN selection (1284) and, after different warnings of armed forces intervention, Saddam ejected the inspectors from his u s a purely before their departure, they had destroyed 40 8 long variety missiles, 14 prevalent warheads, 30 chemical warheads, 40,000 chemical munitions and 690 a lot of chemical brokersthere grew to become into no good monitoring from 1999 on - or perhaps the supervisor weapons Inspector, Scott Ritter, admitted that even regardless of the undeniable fact that the inspectors had placed and destroyed lots of the laboratories, production equipment and chemical brokers discovered - he ought to no longer determine they had eradicated Saddam's WMD arsenal thoroughly - alongside with VX nerve brokerswhile Saddam wasn't expelling the inspectors from the rustic, he grew to become into denying them get admission to to quite a few homes and diverse areasit relatively is the state of affairs on the time while the alternative to attack Iraq grew to become into positioned to a voteforget approximately approximately any rhetoric approximately Bush lied - given Saddam's historic previous and the findings of the inspection communities - HOW could you have VOTED?
energy used in lifting the weight is E mgh 200x9.8x53 103880 joules input is 200000 J efficiency is 103880/200000 52% .
HERE`S YOUR SIGN Wise Guy !! Watch and see what your beloved Liberals said about WMDs` during Slick Willies` term and President Bush`s ! What a bunch of 2 faced HypocritesSee , a Liberal will give you a thumbs down when you show him/her facts ! I mean these are the Liberal Dimokratz all saying on VIDEO about their surety of WMDs` in Iraq , of course this is while Bill Clinton is presidentIt shows Nancy Pelosi saying she knows for a fact that Saddam has WMDs`Now they blame no WMDs` on Bush when they were betting their lives on it under Clinton Unbelievable Lying Hypocrties .
Bush no longer needs to use faulty (false?) intelNow that the war is so far advanced, he can rely on calling people who dare to not support it anti-american, traitors, defeatists, ad nauseumNow, let's lay blame in the right placeWe the people and our representatives were gullible enough to fall for the Iraq is going to nuke us tomorrow fear campaignThere actually was plenty of contrary reporting even in the mediaI fell for the false reports of CURRENT WMD's (not past stocks as the idiot neo-cons keep harping on) and so-called negotiations for uranium to produce nukesI should have remembered the dismal performance of the SCUD missiles in the Iraq war 1 and drawn a more logical conclusion.
They depend on a sustainable conflict in Iraq - Because the US not winning in Iraq has nothing to do with the government in Iraq or even the Iraqi people or insurgents or WMD The US not winning in Iraq has to do with the fact that it is designed to stay that way , didn't people read the headlines that state the US is not leaving for 10 years ? Well if everything was going well why would they have to stay for 10 years ? The answer is - They wouldn't Politicians running for President are saying we are not leaving Iraq until 2013 ! Why so long ? Ask yourself - its not chess .

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