A thin semicircular rod like the one in problem 4 is broken into two halves. The top half has a total charge +Q uniformly distributed along it, and the bottom half has a total charge-Q uniformly distributed along it. On the diagram, indicate the direction of the net electric force on a positive test charge placed in turn at points A, B, and C. Explain how you determined your answers.

Draw the free body diagram for the charge C showing the superposition of forces FC= FA + FB.   Calculate the net force (magnitude and direction) on the charge labeled C at the far right.

The diagram below shows a positive point charge placed near a neutral metal cube. The location marked with a × can be ignored. a. Draw the charge distribution within the metal cube and reduce it to an “effective point charge model, as shown in class.b. Is the positive point charge attracted to, repelled by, or unaffected by the metal cube? Please explain using a neat vector diagram to support your arguments.c. In a second identical experiment, the positive point charge +q is replaced by a negative point charge −q. Does a negative point charge interact differently with the metal cube as compared to the positive point charge? Briefly explain your reasoning.

For problems 6-11, make sure to include pictures, Free Body Diagrams, and force charts. 6. What is the magnitude of the net electric force on charge A in the figure to the right? = Assume that q₁ = 1.5 nC and 9₂ What is the direction of the net 4.8 nC. electric force on charge A? Answer: F= 4.1×10¯5 N to the right A 9₁ A + 1 cm B -9₁ 1 cm 92 C(+

The point charges in the figure have the following values: q1 = +2.1µC, q2 = +6.3µC. q3 = -0.89µC. Suppose that the magnitude of the net electrostatic force exerted on the point charge qa in the figure is 0.01 N. (Figure 1) Part A Find the distance d. Express your answer using two significant figures. Templates Symtols undo redo teset keyboard shortcuts Help d= 0.34 Im Submit Prevlous Anewere Request Answer X Incorrect; Try Again; 5 attempts remaining Part B What is the direction of the net force exerted on q2 the figure? Express your answer using two significant figures. Tempiates Symbols undo redo keyboard shortcuts help Figure 1 of 1 e = 94.8 counterclockwise from right direction Submit Prevlous Answers Requeet Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback 91 43

A small sphere with a mass of 0.450 gram is suspended by a non-conducting silk thread as shown. The sphere is subject to an electric field of 3000 N/C directed to the left and the sphere swings out 8° from the vertical as shown below. Follow the steps below to determine the magnitude of the charge on the sphere. A. e = 8° 1. Label all the forces acting on the small sphere on the diagram on the left. 2. Using the forces on your diagram determine the charge (magnitude and quality (+ or - )) on the ball.

please answer all parts of the question, if it says to explain, use words

A negatively-charged object creates an electric field which can be measured at various locations in the region about it. An electric field vector is drawn for point X. Use your understanding of the electric field - distance relationship to draw E vectors for points A - E. (The length of the arrow should be indicative of the relative strength of the E vector.)