Recent content by jammhawk

I'm still really confused about this one. Any help would be appreciated.

Homework Statement Two containers contain molecules at different temperatures as shown. They are allowed to exchange heat between them, but not with outside. Which of the following statements is most accurate? a) Container #1 looses Internal energy, container #2 gains internal energy b)...

Homework Statement A 100 N force is applied with the help of the brakes of a 2000 kg car while the car is movign at 2.6 m/s speed. Two seconds later, the velocity of the car is Homework Equations a= F/m v= vinitial - at The Attempt at a Solution a=100 N/2000 kg a=.05 v=2.6m/s...

i know... and I would like to thank you for the best help available!

actually i found all these online through yahoo. our professor gives us an assignment just sets us free. i wish he was more hands on

Homework Statement A 2 kg fan-cart is in linear motion; it experiences 4 N forward force due to the fan. Assume that the 2kg fan-cart rolls under fan's force, between the weels and track there is 1N frictional force. 1. its acceleration 2. its velocity 3 second after start 3. its...

so displacement = 16 meters total time = 2 seconds average velocity = 16 m/2s 8 m/s right?

ok so all answers are good so far. now how do i use the displacement of answer d (16) to find the average velocity?

And if those are true... displacement = .5(a)(t^2) + vinitial(t) + dinitial D = .5(2)(2^2) + 6(2) + 0 D = 4 + 12 + 0 D = 16 d. 16?

Basically in my head i said. Aceleration = 2 m/s/s Velocity = x m/s so maybe V= at

I have no clue what I am doing! I'm confused about all of this. Ok. I got b. 6 m/s c. 10 m/s but i have no clue how i got it. and its probably wrong

Can someone help me with a velocity formula? I keep looking for formulas but I can't really understand it.

Attempt a. a = F/m a = 4N/2kg a=4kg*m/ss/2kg a=2m/s/s Is that right?

Homework Statement A 2kg fan-cart is in linear motion (straight line on a very long track); it experiences 4N forward force due to the fan. Find the following assuming it is at rest initially: a. The acceleration: b. Its velocity 3 seconds after it starts c. Its velocity 5 seconds...

so does X = 120 grams?