An automobile with an internal combustion engine converts the potential energy of gasoline (44 mj/kg) into the kinetic energy of the moving pistons. if the average internal combustion engine is 10 percent efficient and 1 kg of gasoline is combusted, how much potential energy is converted into energy to run the pistons?

4.4 MJ

Explanation:

We are given that an automobile with an internal combustion engine converts the potential energy of gasoline into kinetic energy of the moving piston.

1 kg of gasoline gives energy=44 MJ.

Average internal combustion engine =10 % efficient

We have to find how much potential energy is converted into energy to run the pistons.

10% of 44 =

Since 10% is efficient of internal combustion.

Therefore, 4.4 MJ potential energy is converted  into energy to run the pistons.

im sorry i dont know

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer