jkm2500 0 #1 June 6, 2006 Summer school is so much fun... I am working on homework. Here are some of the problems. Let's see what ya gotThe primary purpose of the Armed Forces is to prepare for and to prevail in combat should the need arise. Quote Share this post Link to post Share on other sites
davedlg 0 #2 June 6, 2006 You expect us to do your homework for you?? Oh well. The answers are 8.16ms, 3.07x10^4 N, and 1.3x10^-9 N. Now ya just gotta figure out where those came from. Quote Share this post Link to post Share on other sites
jkm2500 0 #3 June 6, 2006 QuoteYou expect us to do your homework for you?? No, more like making sure that I have the right answers. This one of the hardest things to grasp that I have ever done.The primary purpose of the Armed Forces is to prepare for and to prevail in combat should the need arise. Quote Share this post Link to post Share on other sites
jkm2500 0 #4 June 6, 2006 How did you get #18. This is my method, and I am getting a different answer. F=G((m1*m2)/r^2) Where G=6.673*10^-11 m1=7.2kg m2=.38kg radius is measured from the center of both spheres. so combine the radii, and then square. Which = (.11m + .028m)^2 = .019 Overall max force that I get is 9.59*10^-9N IS this correct, or am I waaaaayyyyy off?The primary purpose of the Armed Forces is to prepare for and to prevail in combat should the need arise. Quote Share this post Link to post Share on other sites
davedlg 0 #5 June 6, 2006 9.59x10^-9 is right. I'm not sure where my other answer came from. Quote Share this post Link to post Share on other sites
pBASEtobe 0 #6 June 6, 2006 QuoteThe answers are 8.16ms, 3.07x10^4 N, and 1.3x10^-9 N Wait a minute, can't you use averages here? If so... #4 F=ma and a=v/t F=ma: a=490,000/5= 98,000 m/s^2 a=v/t: t=4000/98,000=0.0408 sec.= 40.8ms #14 F=ma and a=v/t a=v/t: a=220/0.0065=33846.2 m/s^2 F=ma: F=41*33846.2= 1.39E6 N Quote Share this post Link to post Share on other sites
SarahC07 0 #7 June 6, 2006 how well would this approach work with my finance class? Quote Share this post Link to post Share on other sites
jkm2500 0 #8 June 6, 2006 Quotehow well would this approach work with my finance class? I dont know, but I think that there are a lot of talented people on here who like to do stuff like this for fun. I can't think of any good reason for this physics stuff. But, there are people who love it. Finance is probably the same way. Give it a try, see what happens. Hopefully, this actually helps my grade.The primary purpose of the Armed Forces is to prepare for and to prevail in combat should the need arise. Quote Share this post Link to post Share on other sites
genoyamamoto 0 #9 June 6, 2006 Here you go. Gotta go... plaything needs to spank me Feel the hate... Photos here Quote Share this post Link to post Share on other sites
