Recent content by AntonySpeech

Ok, thanks. So that'd leave only questions 1 and 3. :)

Oh, now I understand. So, that'd mean that the answer should be: 156,562.5J (Kinetic Energy in the first position) - 40,000J (Kinetic energy in 2nd position) = 116,562.5 (what unit should I use? Joules?)

So for #1 the next step should be 287,510.44J x .14 then divide the answer by 1.3 billion? For #2 I don't have the distance, so how would I fill that spot, or how do I acquire the distance?

But how do I apply the efficiency to the answer in #1, like what is the next step to solve the problem? And in #2, I don't really understand what you're telling us to do, I'd really love it if you could please be more descriptive, or give us a list of processes to realize it. Much thanks for...

In problem #1 here's what we did: Kinetic Energy = 800KG x (26.81m/s)² = 287,510.44J, but we have no idea how to relate this to the gasoline or to the efficiency (since we haven't seen efficiency in class, and our teacher gives us problems above our level, so that's why we're coming here.)...

Homework Statement 1. An automobile has a mass of 800 kg and is considered that the efficiency is 14%. (This is 14% of the energy in the fuel is delivered to the wheels). Find the quantity of gasoline used to accelerate the car from rest to 60 miles/h. Note: In this problem, one gallon of...