A small block of mass m and charge Q is placed on an insulated, frictionless, inclined plane of angle 8 as in the figure below. electric field is applied parallel to the incline. Q m Ⓡ (a) Find an expression for the magnitude of the electric field that enables the block to remain at rest. (Use any variable or symbol stated above along with the following as necessary: g for the acceleration due gravity.) E = (b) If m = 5.76 g, Q = -6.72 μC, and 8 = 26.9°, determine the magnitude and the direction of the electric field that enables the block to remain at rest on the incline. N/C magnitude direction ---Select--- Read It Need Help?

Why is C the answer?I need help figuring out this problem.

A uniformly charged rod of length L and total charge Q lies along the x axis as shown in in the figure below. (Use the following as necessary: Q, L, d, and ke.) Ey= P d Ⓡ (a) Find the components of the electric field at the point P on the y axis a distance d from the origin. Ex= Eyz (b) What are the approximate values of the field components when d >> L? Ex L Explain why you would expect these results. This answer has not been graded yet. Need Help? Read It

Three charges are at the corners of an equilateral triangle, as shown in the figure below. Calculate the electric field at a point midway between the two charges on the x-axis. (Let q1 = 2.50 ?C,q2 = 6.00 ?C,and q3 = −2.50 ?C.)

In the ever popular game from the future, Electrodisc, players can score double points by pushing a disc into another disc with the electric field generated by a third disc. The discs are by regulation 1 kg. All discs have the same shape and are made of the same conducting material. In the figure below, disc 1 is held in place, and disc 2 is held stationary 4.1 m from disc 1 by a player. The player then releases disc 2. 10 m. F12 What is the initial magnitude of the acceleration imposed on the second disc? The charge on the first disc is 1.7 mC. The charge on the second disc is 1.7 mC. The charge on the third disc is neutral. m/s² Later, discs 2 and 3 touch and charge is exchanged. How much charge is exchanged once the charges on each disc reach an equilibrium? mC After charge is exchanged, what is the direction of the force on disc 3 due to disc 2? O toward the left O toward the right O upward O downward

Either all parts or none, asap plxxx

Find the x and y components of the electric field produced by 91 and 92 in the figure shown below at point A and point B. (Take q₁ = 2.16 μC and q2 = -1.09 μC.) y, m 3 2 1 B 914 Point A Ex= Ey= Point B Ex = Ey = I 1 2 3 4 -x, m

Recall Coulomb's Law, which says that  |?|=?|?1?2|?2|F|=k|Q1Q2|r2 , where |F| is the size of the electrical force, the Qi are charges, r is the distance between the charges, and k is a constant.  The units of k can be written as Ma Lb Tc Qd.  What is b?