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(6%) Problem 4. To start a car engine, the car battery moves N=4.75 x 1021 electrons through the starter motor. & 50% Part (a) Write an expression for the magnitude of charge moved, Q, in terms of N and the fundamental charge e? Grade Sumn
(6%) Problem 9: Three charges are located as shown in the figure, with values q=4.8 x 10-16 C.92 -1.1 × 10-16 C, 43-5.75 × 10-16 C. The charges are separated by dj = 3.6 × 106 m and d₂ = 4.4 x 10-6 m. sin() cos() cotan() asin() atan() acotan() cosh() tan() acos() sinh() cotanh() tanh() ODegrees O Radians Submit a 50% Part (a) What is the force of q2 on q7 in the x direction, F? Give your answer in newtons, and recall k=8.988 x 10° N m²/C². Hint X ( E t VC (1) Feedback: 7 4 1 0 8 5 6 2 3 9 MOMIL d, I give up! deduction per feedback. 9₁ d₁ Otheexpertt Grade Summar Deductions Potential Submissions Attempts remain (3% per attempt detailed view Hints: 4% deduction per hint. Hints remaining: 2 & 50% Part (b) What is the force of q3 on qy in the y direction, F,? Give your answer in newtons.
(6%) Problem 10: Two Styrofoam balls have the same charge. Each ball has an excess of N= 10 protons. The balls are initially separated by a distand -2.9 m. The Coulomb constant is k=8.988 × 10⁹ Nm²/C². th & 50% Part (a) Write an expression for the charge on one of the balls, Q, in terms of the charge on a proton e and the number of excess protons N. 9-1 a j P Submit c m t Hint VCPACKSPACE 4 5 6 1 2 3 0 9 Feedback I give up! Feedback: + HOME END CLEAR Hints: 4% deduction per hint. Hints remaining: 2 & 50% Part (b) What is the magnitude of the force between the balls, F, in newtons? deduction per feedback. Grade Summar Deductions Potential Submissions Attempts remain (3% per attempt detailed view
6) Problem 17: A charged particle (q=5.5 x 10-10 C) experiences a force of F=4.75i-2.2j N in an electric field. A 50% Part (a) Write an expression for the electric field vector E to which the charge is subject, in terms the force F. 9.52 Grade Summary Deductions Potential 05 100%