Four 10 nC point charges are located in the z = 0 plane at the corners of a 8 cm square side centered at the origin. A fifth charge of 10nC is placed 8 cm fromdistance from other loads. Calculate the magnitude of the force perceived by the fifth charge because of the other four. Answer must be : 400 µN.

(a) A small amber bead with a mass of 14.4 g and a charge of -0.65 μC is suspended in equilibrium above the center of a large, horizontal sheet of glass that has a uniform charge density on its surface. Find the charge per unit area on the glass sheet (in μC/m²). μC/m² (b) What If? What are the magnitude and direction of the acceleration of the piece of amber if its charge is doubled? (Enter the magnitude in m/s².) magnitude m/s² direction -Select---

Tthree point charges, Q1 = 18.4 µC, Q2 -33.6 μC, and Q3 = 87.3 μC are positioned at three corners of a square as shown in the figure. A fourth point charge is located at the open corner at point A with a charge of QA = 15.5 μC. The square has height y of 40.1 cm and width x of 40.1 cm. Q, + Calculate the magnitude F of the net force on the charge at point A. 71.1 F = Incorrect y x A + Q3 N

11:09 d G . O 图“自 Ritesh Sah 2. A uniform rod oflength L lies on the x-axis as shown. The rod has a net charge of Q that is uniformly spread alongits length. Q=+5.00e-9 C L= 5.00 meters A uniformly charged rod of length L on the x-axis. Point P is at (5,2) meters on the x,y plane. Use the methods shown in class to: • Calculate the magnitude/size of the electric field at point P due to the rod. Calculate the Trig Angle, measured counter-clockwise from the +x-axis in degrees, of the electric field at point P due to the rod.

A 8.08-nC charge is located 1.79 m from a 4.02-nC point charge. (a) Find the magnitude of the electrostatic force that one charge exerts on the other. (b) Is the force attractive or repulsive? attractive repulsive

What is the magnitude of the force a +30 μC charge exerts on a +2.9 mC charge 48 cmcm away? Express your answer to two significant figures and include the appropriate units.

A positive charge q, = 3.00 µC on a frictionless horizontal surface is attached to a spring of force constant k as in the figure shown below. When a charge of q, = -8.950 µC is placed 9.50 cm away from the positive charge, the spring stretches by 5.00 mm, reducing the distance between charges to d = 9.00 cm. Find the value of k. ww 92 N/m Need Help? Read It

A +200 μC charge is placed at the origin and a -300 μC is placed 1 m to the right ofit. (a) What is the magnitude and direction of the E⃗ midway between the twocharges and (b) 30 cm to the right of the negative charge?

help asap (not in scientific notation)

The drawing shows an equilateral triangle, each side of whichhas a length of 2.00 cm. Point charges are fi xed to each corner, as shown. The4.00 ?C charge experiences a net force due to the charges qA and qB. This netforce points vertically downward and has a magnitude of 405 N. Determinethe magnitudes and algebraic signs of the charges qA and qB.