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  1. ...½mv² = 0.22 - ½kx² - 4.2*(0.020 - x) differentiate w/r/t x ½m * 2v * dv/dx = -kx + 4.2 we want the point where dv/dx = 0...

    1 Answers · Science & Mathematics · 18/10/2019

  2. ... have n and ΔE. For a diatomic gas, Cv = (5/2)R and R = 8.314 J/mol·K So you can compute the temperature...

    1 Answers · Science & Mathematics · 24/09/2019

  3. current flows through, not across first get total R 20 parallel with 35 = 20•35/55 = 12.73 in series with 15 that is 27.73 ...

    2 Answers · Science & Mathematics · 19/09/2019

  4. The resistance between A and B is 1/R = 1/30 + 1/40. That should be all the hint you need.

    2 Answers · Science & Mathematics · 18/09/2019

  5. I = (E1-E2)/(r1+r2+R) = (2-1)/(0.1+0.2+2.7) = 1/3 A V1 = E1-r1*I = 2-0.1/3 = 1.967 V V2 = E2-r2*I = 1-0.2/3 = 0.933 V

    1 Answers · Science & Mathematics · 18/09/2019

  6. .... The potential is constant within the shell -- that is, for r < R_shell. Shell 1 has the largest...

    1 Answers · Science & Mathematics · 18/09/2019

  7. we must use r^2 v= constant. r is the radius and v is the velocity. first condition...4*4=1. This remains a constant. In the second segment r=1. velocity =1 m/s. In the third segment (1/4)^2 v=1. v=16 m/s...

    3 Answers · Science & Mathematics · 15/09/2019

  8. V = kq/r so r = kq/V = 8.98755179e9 * 1e-5/1e4 = 8.98755179e9 * 1e-5/1e4 = = 8.98755179e9...

    3 Answers · Science & Mathematics · 15/09/2019

  9. 2. The angle is given w/r/t horizontal, so Ax = A*cos45.0º Ay = A*sin45....

    1 Answers · Science & Mathematics · 15/09/2019

  10. ... energy between two charges, in Joules U = kQ₁Q₂/r Q₁ and Q₂ are the charges in coulombs...

    1 Answers · Science & Mathematics · 14/09/2019

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