A 7-kg crate is being pulled along a rough surface with a coefficient of kinetic friction of . The pulling force is 36.5 N and is directed 31.6 degrees about the horizontal. If the pulling direction is considered positive, the crate's acceleration is m/s^ 2

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Determine the maximum r-value of the polar equation r =3+3 cos 0

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?