A particle of charge +13.2 µC and mass 7.64 x 10^-5 kg is released from rest in a region where there is a constant electric field of +397 N/C. What is the displacement of the particle after a time of 3.14 x 10^-2 s?
Please explain the solution, thanks!
2007-09-18 05:40:32 · 4 answers · asked by free f 1 in Science & Mathematics ➔ Physics
"N/C" means "Newtons per Coulomb," so when they say the field strength is "+397 N/C", that mean that each Coulomb of charge that you put into that field, will experience a force of 397 Newtons.
So, how much force (how many Newtons) will a charge of +13.2 µC feel?
(umm...hint: multiply the Newtons per Coulomb times the number of Coulombs).
So now you know the force F that the charged particle feels. You also know the mass m of the particle, because that's given to you in the problem.
So now you can use the famous equation "F=ma" to figure out "a", the acceleration of the particle.
And finally, you can use the other famous equation "s = at²/2", to figure out the displacement "s" after time "t".
2007-09-18 05:55:05 · answer #1 · answered by RickB 7 · 0⤊ 0⤋
the galaxies rotate at speeds inconsistent with their obvious mass is due to the fact that we do see it all. I am regarding it as being the theoretical Dark Matter. There are very robust proofs that shows that darkish subject exist. One the is the inconsistent pace of and obvious mass. darkish subject makes up approximately seventy five% to eighty% of the problem within the Universe...
2016-09-05 18:21:25 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Do your own homework! Lazy...
2007-09-18 05:47:57 · answer #3 · answered by Bam Bam Obama 3 · 0⤊ 0⤋
http://answers.yahoo.com/question/index;_ylt=Ag0_zkvSIbZYB4ivUL3hYyEjzKIX;_ylv=3?qid=20070905000404AATYUhh
2007-09-18 05:51:46 · answer #4 · answered by 4 · 0⤊ 0⤋