Label each of these as either tranverse or longitudinal. And either mechanical, or electromagnetic. 1. microwave radiation

2.sound through air

3.vibrations of an ear drum

4. sound through water

5.radiant heat

6. radio broadcasts

7.visible light

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

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?