Ch 5 Electric charges and fields Begin Date: 6/12/2022 11:59:00 PM -- Due Date: 6/19/2022 11:59:00 PM End Date: 8/5/2022 11:59:00 PM (4%) Problem 21: In the figure, the point charges are located at the corners of an equilateral triangle 21 cm on a side. ga - - p . - qc qb 4 50% Part (a) Find the magnitude of the electric field, in newtons per coulomb, at the center of the triangular configuration of charges, given that qa = 2.2 nC, qb = -5.1 nC, and qc = 1.7 nc. A 50% Part (b) Find the direction of the electric field in degrees below the right-pointing horizontal (the positive x-axis). Grade Summary 0 = Deductions 0% Potential 100% sin() cos() tan( 7 8 9 HOME Submissions cotan() asin( acos() E TA 5 6 Attempts remaining: 35 (0% per attempt) atan() acotan( ) sinh( 2 3 detailed view cosh() tanh() cotanh() END O Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint I give up