Recent content by wilson_chem90

Homework Statement Look back at the Example in the Using Coulombs Law-Comparative Analysis section. Calculate the magnitude of F2 if both changes occurred simultaneously-that is, if the distance between the charges doubled and the size of once tripled, while the size of the other doubled...

sorry i forgot to cancel r1, its actually F2 = 6F1/4

ohh okay, sorry i thought it mean't something else. Do i ended up setting F1/F2 = (q1q2/r1^2) / ((3q1)(2q1)/2r1^2) I rearranged it to be F2 = 6F1/4r1 (after cancellations and rearranging) Im not sure if i rearranged it correctly...

nice! thank you for your help

well for example, the question number is 70, and the nuclear reaction is part a, and this question is part b. So I'm guessing they're linked together. And once i find the other energy amount, i just divide it by the TNT energy level to find the amount of grams in TNT

so what do i do with the nuclei? do i divide them by the amount of energy during the reaction?

oh okay thank you very much

so does that mean i divide it by 2?

Homework Statement Mirrors left behind the Moon have been used to measure the distance between Earth and the Moon accurately. If the time required for a pulse of light to reach the Moon and return to Earth is 2.562 s, calculate the distance between Earth and the Moon in kilometers...

okay, well there was a question before this one that was linked to this one, and it involved a U-235 reaction and the answer for the energy released was 4.79 x 10^-10 J. would that be it?

Homework Statement Nuclear energy changes are significantly greater than chemical changes. The detonation of 1.00 g of the explosive trinitrotoluene (TNT) releases 2.760 kJ. How many grams of TNT would be needed to match the energy released be one gram of U-235? (HINT: 1.00 g of U-235 contains...

Homework Statement Look back at the Example in the Using Coulombs Law-Comparative Analysis section. Calculate the magnitude of F2 if both changes occurred simultaneously-that is, if the distance between the charges doubled and the size of once tripled, while the size of the other doubled...

thanks

i couldn't do the laTeX image, but its 235/92 U + 1/0 n = 141/56 Ba + 92/63 Kr + 3 1/0 n

Homework Statement Another possible form of the fission of U-235 is: \begin{array}{cc}235&92\[\tex] U + \begin{array}{cc}1&0\[\tex] n [tex]/rightarrow [tex]\begin{array}{cc}141&56\[\tex] Ba + [tex]\begin{array}{cc}92&36\[\tex] Kr + 3 [tex]\begin{array}{cc}1&0\ n a) Given the masses of the...