: In order to push a pile of crates forward, a student applies a force. There is a friction
force that pushes backward on the crates with a magnitude half as much as the force
from the student. If the student pushes with a force of 300 N to the right, the net
force on the crates will be ---

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?