PHYS 115 Midterm: Phys115Exam2EquationSheet

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turquoisegnu128

31 Jan 2019

School

Department

Physics

Course

PHYS 115

Professor

All

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Document Summary

Angle of a vector from the x- axis. Work force at an angle to motion. Newton"s 2nd law for rotation. C x = a x + b x and. Coulomb"s force law e = 1. 60 10 19 c. If makes an angle with the +x direction. Ax toward the center of the g = 9. 81 m/s2 earth v = v. Electric field k = 8. 99 109 n m 2 / c2. = 8. 85 10 12 c2 n m 2. Electric potential and potential energy. Electric potential of a point charge (0 at ) Electric potential energy of 2 point charges. Energy density of an electric field. Electric field in a dielectric. Potential difference in a dielectric. C q(t) = c (1 e t ) q(t) = qe t e t . Rc circuit time constant = rc. 2 cv 2 = q 2 / 2c. P = iv = i 2 r =

Related Questions

Particle A of charge 3.00 × 10^–4 C is at the origin, particle B of charge –6.00 × 10^–4 C is at (4.00 m, 0), and particle C of charge 1.00 × 10^–4 C is at (0, 3.00 m). We wish to find the net electric force on C. (a) What is the x component of the electric force exerted by A on C? (b) What is the y component of the force exerted by A on C? (c) Find the magnitude of the force exerted by B on C. (d) Calculate the x component of the force exerted by B on C. (e) Calculate the y component of the force exerted by B on C. (f) Sum the two x components from parts (a) and (d) to obtain the resultant x component of the electric force acting on C. (g) Similarly, find the y component of the resultant force vector acting on C. (h) Find the magnitude and direction of the resultant electric force acting on C.