I Review If the ball is discharged, will the period increase, decrease, or stay the same? Explain. Match the words in the left column to the appropriate blanks in the sentences on the right. Reset Help repel from Since the ball and the plate are both positive charged, they each other. As the gravity is directed downward, the influence of the electric field may be considered as fall acceleration for the ball. If the ball becomes discharged, the force of its interaction with the plate becomes zero and the free-fall acceleration for the ball becomes equal to g. According to the equation for the period of a pendulum, the decrease of the free-fall acceleration attract to of free- an increase the a decrease period. So, the period of the ball swing would

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I cant seem to figure this question out. No matter what formula I use I keep getting it wrong. Really need help finding the correct answer. Thanks Below is a transcript of the question incase its hard to see the picture    Two particles having charges of 0.550 nCnC and 13.8 nCnC are separated by a distance of 1.30 mm. PART A At what point along the line connecting the two charges is the net electric field due to the two charges equal to zero? Express your answer in meters. CORRECT ANSER IN BOX The electric field is zero at a point = 0.217 mm from 0.550 nCnC . PART B Where would the net electric field be zero if one of the charges were negative? Enter your answer as a distance in meters from the charge initially equal to 0.550 nCnC.

Determine the magnitude of the electric field at A. Express your answer to two significant figures and include the appropriate units. Use Coulomb's law to determine the magnitude of the electric field at points A and B in (Figure 1) due to the two positive charges (Q = 5.1 µC) shown. Suppose that a = 5.1 cm Ti HÁ E, = Value Units Submit Request Answer Part B Determine the angle between the direction of the electric field at point A and the positive x-direction. Express your answer using two significant figures. nν ΑΣ φ. OA = 0.83 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Figure < 1 of 1 Part C В Determine the magnitude of the electric field at point B. Express your answer to two significant figures and include the appropriate units. +Q• +Q ? 2a EB = Value Units Submit Request Answer P Pearson

Spheres A, B, and C are identical conductors. Spheres A and B are initially neutral. Sphere C initially has a charge of – 2q. a) For each of the steps show, 1. Determine any unknown charge (represented as a 2. Draw the distribution of charges on each sphere. You may assume that any spheres that are not in contact are far enough away to not interact with each other. in the figure). 1. A positively charged rod is held close to, but not touching, two identical A B C spherical 489 -29 conductors. 2. Sphere B is moved away A C from Sphere A. 48q -2q 3. Sphere B is brought in contact with Sphere C. A B 489 4. The positively charged rod is removed and A B C Sphere B is moved away from Sphere C. A C 5. Sphere B is removed. |