Recent content by SuPaFly43218

Ack! Silly me! My calculator was set up incorrectly! I fixed it! Thank you for helping me understand that I was doing it correctly though!

Sorry, I meant 3.16 x 10e20. Still isn't correct though.

Bump please!

Homework Statement If a proton and an electron are released when they are 8.00×10e-10 m apart (typical atomic distances), find the initial acceleration of each of them. Homework Equations F=ma F=kq1q2/re2 F=kee2/r2 The Attempt at a Solution Since r=8x10e-10, I solved for the...

NVM, figured them all out!

Well, i figured out the work done on the carton by the rope because the angle of the rope is NOT 30 degrees, it is parallel, thus 0degrees. Still can't figure out the gravity one though..

Homework Statement A 128 N carton is pulled up a frictionless baggage ramp inclined at 30.0 degrees above the horizontal by a rope exerting a 72.0 N pull parallel to the ramp's surface. If the carton travels 5.20 m along the surface of the ramp, calculate the work done on it by the rope...

Nvm, i figured it out. Thank you for your help LowlyPion, your help is much appreciated.

Thank you, our physics book and teacher never explained that to us. Just to get this right, you said that (Force) F = mu x m (mass) x g (gravity)?

Right, i got the answer... but what is the formula a= (mu x g). I have never seen this formula before. Is this derived from something else??

Bump! This is very important!

Homework Statement You have been called to testify as an expert witness in a trial involving an automobile accident. The speed limit on the highway where the accident occurred was 40 mph. The driver of the car slammed on his brakes, locking his wheels, and left skid marks as the car skidded to...

I am also trying to figure this out. The answer so happens to be 51.2 mph, but I have NO idea how to figure this out. PLEASE HELP!