A. work force B. work energy C. work load D. effective work done 相关知识点: 试题来源: 解析 B。解析:做功的英语表达是 work energy。A 选项 work force 是劳动力;C 选项 work load 是工作量;D 选项 effective work done 是有效功。反馈...
The destruction of the window is the work that is being done. Note a subtle difference between the potential energy discussed earlier, and this example of kinetic energy. In the previous example, the person releasing the bowling ball had to exert no effort to release the ball- in fact, she...
∆KE=½mvf2TheWork-EnergyTheoremstatesthattheworkdoneonanobjectisequaltoitschangeinkineticenergy:W=∆KEEquipmentSetup:Inthisexperiment,youwilluseaHalf-Atwoodmachinetoinvestigatetherelationshipbetweenworkandkineticenergy.AHalf-Atwoodmachineisshownbelow:astringconnectstwoobjects(oneobjectisonasurfacewhiletheother...
restorers?patienceandpeaceofmindare 6 (especial)preciousinasocietywhereeverythingis changingsofast. Atouchingpartofthedocumentaryis 7 spiritofcraftsmanship(工匠)intherestorers. 8 (year)ofrepeatedboringworkrequires,notonlyskill,butalsofaithandspirit.Mastersin theForbiddenCityhasprovedwrongmanypeople?sideasabou...
Then you could determine how much energy was required for the turn itself by: Eturn = Etotal - Eheat - Ekinetic - Estrain - Eetc Do this for ANY proposed turning mechanism and you will find that Eturn = 0 and so there is no energy required for the turn itself. And you have ...
物 present us with opportunities赋予(人生)以意义 give meaning to your life /work赋予人性的一面 人性化 give a Human face toGive and take 舍与得 奉献(invest)与索取 (take)invest time/energy in helping others,take meani...
Installing energy - efficient insulation materials D. Using high - power consuming lighting in all areas 相关知识点: 试题来源: 解析 C。解析:本题考查建筑节能减排措施。安装节能隔热材料是有效的措施。选项A使用单层玻璃窗不利于节能;选项B不对墙壁做隔热处理不符合节能要求;选项D在所有区域使用高耗能照明...
2 (a) State what is meant by work done.---[1](b) A beach ball is released from a balcony at the top of a tall building. The ball falls vertically from rest and reaches a constant (terminal) velocity. The gravitational potential energy of the ball decreases by 60J as it f...
what would comewould what would your previ what wouldandnb what you nerve know what you really feel what you should know what you think is not what you think this i what you tried so not what you wish what youth is used to what whats michael whats m whats done by night a whats for...
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