Fast? ?
which statement is true about the electromagnetic spectrum?
a. the visible spectrum includes radio waves, light and gamma rays.
b. same wave lengths of light corresponding to different colors.
c. it contains a spectrum of visible light plus a wide array of nonvisible forms of radiation.
d. the waves travel at a speed of 2.998 *10^5 m/s

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

The two required components for a generator

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?