Student Wt, No. 60 1. The following are five problem statements for you the corr
ID: 1388478 • Letter: S
Question
Student Wt, No. 60 1. The following are five problem statements for you the correct physi equation needed to solve the problem based on the given information. You must complete least four of the five problems. You are allowed to answer the fifth problem for extra credit. For each problem, one from the to Equations Problem Statements a. Two charges, qm +1.2OnC and qr -4.50m C, are separated by a distance riz 2.50 mm. Calculate the magnitude of the electrostatic force on due to q. b, E k ANSWER: b. A proton moves from position A to position B (15) in a uniform electric field. Assume that the only force acting on the proton is the force due to the uniform electric field. Calculate the proton's change in electric potential energy. ANSWER: (15) c. A charge of g +173 nC is enclosed by a Gaussian cube with sides 10.0 cm. Calculate the electric flux through the Gaussian ANSWER: (15) d. The speed of sound at normal atmospheric conditions is approximately 344 m/s. If range of audible wavelengths are 17mm 17m, calculate the range of frequencies which are audible. ANSWER: e. Calculate the electric field, E, at a point k. E," as (15) (2.00i -3.00) m if the electric potential is given by v 5.00 ry where V is in volts and x and y are the meters. ANSWER:Explanation / Answer
(a) magnitude of electrostatic force is given by the coulombs law Therefore Equation a will be the correct answer
F12 = kq1q2 / r12
(b) Equation i will be correct because work done by the electric field will be equal to change in potential energy
(c) Equation e will be correct because electric flux is given by integration of electric field vector over the area
(D) Equation n v = omega /k will appply here , where k is the wavelength of the wave
(e) Equation l will be applied because the electric field at any point is given the space derivative of the potential field