EnergyismeasuredinJoules(J)soNmmustbethesame unitasJ. Thismeanswecansaythat WD=100J Notethatthemassofthecrateisnotrequiredtoanswerthe question.Themasswouldberequiredifweneededtocalculatethe workdonebyliftingthecratebutnotbypushingit. Example: Howfarmusta5Nforcepulla50gtoycarif30Jofenergyare transferred?
Power is defined as Energy generated per unit time or work put into the system or output from the system per unit time. Work is Force vector dotted with distance vector. Instantaneous power is then F vector dotted with velocity vector. The premise is that the power is constant for the proc...
Work can be defined as the energy dissipated to apply a force to a body. An example of this is work that is done when pushing a crate on a surface...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a quest...
4.1.21Work & Energy 4.1.22Power & Efficiency 4.1.23Conservation of Energy 4.1.24End of Topic Test - Work, Energy & Power 4.1.25Exam-Style Question - Forces 4.2Materials 4.2.1Density 4.2.2Bulk Properties of Solids 4.2.3Energy in Materials 4.2.4Young Modulus 4.2.5End ...
新考向3 跨学科试题新素材新能源Energy is the ability to do work. Solar energy comes from the Sun. There is also energy that comes from wind and water.But do you know that energy can come from people, too? When you pedal a bike, you produce energy. You use your legs to push the pe...
The kinetic energy gained by the ball is equal to the work done on it. Therefore, the ball gains 50J of kinetic energy. Since the question asks for the amount of kinetic energy gained from the player, the correct answer is 0.5J. Rate this question: 8. The diagram shows a box be...
Question 1 Define the following terms:energy,work, andpower. Reveal answer Question 2 For a given amount of electric current, which resistor will dissipate the greatest amount of power: a small value (low-resistance) resistor, or a high value (high-resistance) resistor? Explain your answer. ...
T hat will cause our planet to get warmer. (3) Solar power and wind power. (4) Because sunlight isn't always available. (5) Wind is a natural, clean, and inerpensive source of energy. (6)Scientist and inventors are working hard to creat sonable answer can be accepted.) ...
Work is one way to transfer energy into or out of a system. The work-energy theorem says that the amount of work done on a system by forces that are...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer ...
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。(x+2)^2Energy is the ability to do work. Sol