What's More Directions: Study the table below and answer the following questions in your Science activity notebook. Table 1. Number of Protons and Electrons in Materials X, Y, and Z Materials Number of Protons Number of Electrons 32 30 Y 22 28 18 18 1. Which material's in the table could attract a negatively charged object? 2. Which material/s in the table could attract an uncharged object? 3. Which material/s in the table could attract each other?

Take gravitational constant g =10 m/s2Note that in all the questions be careful about the unit conversions.

Answer the following questions and for figure check the attached image 1.What is the limitation of Coulomb’s law? If you have a single charge in the entire universe, can you measure the electric field of this charge at any point? 2. What is the importance of Gauss’s law? Show that Coulomb’s can be a special case of Gauss’s law. 3. Figure shows the arrangements of electric field lines. If an electronis released at point B, what would happen to this electron and why?Explain. If you move the electron from B to A, what would happento its potential energy? Explain. 4. Figure shows two charged particles that are separated by distance X on an axis. The charges are held fixed. Where should a third charge, q, be placed on the axis such that the net force on q is zero? Explain. Can you determine its distance?

Problem Solving. Show your pertinent solution and BOX your final answer.1. What is the electric potential at a distance of 3.5 × 10-11 m from a proton?2. Find the magnitude of a p m away from it. What is the electricpotential at this distance?3. A 4.5 C charge requires an 8.0 J to move it from point X to Y, where the potentialdifference is 1.5 V. Calculate (a) the potential difference between points X and Y. (b) thepotential at point Y.4. The charge of a point charge is 2.50 x 10 -11 C. Find the distance from the point chargewhere the electric potential is calculated as a) 90.0 V b) 30.0 V

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In May you used 1500 kilowatt-hours of energy for electricity. a. Calculate the total electrical energy use in joules. b. Calculate your average power use in watts. c. Assume that your power supplier generates electricity by burning oil. Note that 1 liter of oil releases 12 million joules of energy. How much oil is needed to generate the electricity you use? Giv your answer in both liters and gallons. a. The total electrical energy use was joules. (Type an integer or a decimal.)

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.

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