Recent content by knight4life

yeah I have .1414 also, I got the .5657 from the problem I had written beneath it. I figured out what I was doing wrong. I was not taking the resultant of AC and AB like you earlier suggested. I tried it this way, and I got the correct result. Thank you for all of your help.

for AC and AB i did (6.674E-11)(4)(4)/.1^2 =1.068E-7 for AD i used (6.674E-11)(4)(4)/.5657^2 = 1.89E-9 I believe these are the correct values, now this is where I run into problems.

yes I did do it that way, and no I am pretty sure I used the same amount of significant figures as the book did.

Homework Statement Each mass is 4kg find the magnitude and direction of the net gravtitational force on mass A due to the other masses. each side of the square is 10cm http://img13.imageshack.us/img13/3815/1012447.jpg I am having trouble with (b) the square Homework Equations F =...

In FL its never cold, and when it is cold for us, all of the other states call it warm.

No, I redid my calculations, without taking the square root and I got the correct answer.

I did (955)^2/ 2*.43m then too square root to get 1029.8 m/s2 should i not have taken the square root of 1060494.186?

Homework Statement A rifle shoots a 4.20 g bullet out of its barrel. The bullet has a muzzle velocity of 955 m/s just as it leaves the barrel. Assuming a constant horizontal acceleration over a distance of 43.0 cm starting from rest, with no friction between the bullet and the barrel...

Thank you very much. I was trying to figure out using kinematics, and getting very angry. I also was assuming that she wanted the acceleration of the vehicle, not that of the friction force.

I don't know, I cannot seem to get that value again.

Homework Statement The driver of a 1750 kg car traveling on a horizontal road at 110 km/h suddenly applies the brakes. Due to a slippery pavement, the friction of the road on the tires of the car, which is what slows down the car, is 25% of the weight of the car. Homework...