Recent content by iRamie

Help please i need to hand in a report tomorrow :(

Homework Statement I am in grade 11 physics and we are learning efficiency, Eout/Ein.. stuff like that. I just have a few questions about cars: How is efficiency defined in cars and why is it so low in cars? What/How are we improving efficiency? The Attempt at a Solution I think that it...

Okay so can i say Friction will cause more applied force as a result it causes less efficiency. Is there anything else? Because it asks for 2 Major Factors.

Im in grade 11 btw so its introductory mechanics lol We have a lab in which there is a ramp with one end on the floor and the other end is on top of a few textbooks. Therefore, it has a slope, and an object is lifted using the ramp and the force is measured using a Newton scale. So in this...

It has a slope? The efficiency can't be 100%? Some work has to be lost right?

No like i mean, in a situation where there is an inclined plane (RAMP). And you are pushing an object up there. In that situation what makes it less than 100%

Homework Statement We have a lab in which there is a ramp with one end on the floor and the other end is on top of a few textbooks. Therefore, it has a slope, and an object is lifted using the ramp. What can we do to this set-up to increase the efficiency, OTHER THAN INCREASING THE HEIGHT...

Homework Statement List a couple factors that make efficiency less than 100%. Homework Equations Efficiency = Eout / Ein Eout = mgh Ein = Work = FD The Attempt at a Solution IDK :\

Homework Statement We have to find the efficiency of a ramp for a lab. We are given an inclined plane, a wooden block and a few masses. We are also given a Newton spring scale. Homework Equations efficiency = (Eout/Ein)*100% Eg = mgh Work = FD The Attempt at a Solution Is the...

Exactly, so isn't it considered a force when your car is moving to the left? You are accelerating (change in direction) so there has to be a net force

When you sit in the passenger seat, why do you feel pushed up when you make a left turn? Explain using Newton's laws of motion.My Guess: Newtons third law states there is a reaction for every action. So when you turn left the opposite reaction would be you turning right? IDK LOL :|

The only force is the friction force because it is sliding there is no other force.

Nope, that's all the question says. It says "Pop Can", and there is a correct answer for it which is 1 metre.

Homework Statement A pop can is sliding across a table and then eventually comes to a stop. If it's initial velocity is 2m/s and the coefficient of kinetic friction between the two surfaces is 0.20, how far will it travel across the table. Vi=2m/s Vf=0m/s CoeffKineticFriction = 0.2 Homework...

Thank you, that is what i needed! Now i got to explain that -.-.