2. Your friend says that when he measured how much electricity was
provided by a battery, it was less than the potential energy in the battery.
He concluded that the transformation violated the Law of Conservation of
Energy. Do you agree? Explain, using the ideas of the Conservation of
Energy (answer in 3-4 sentences or a solid paragraph, or more).

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength