Think about the electroscope that we used in the first lab. Hopefully, you noticed that the more charge was transferred to the electroscope, the higher the gold foil leaf was rising. Let's see if we can use that to verify Coulomb's law, while practicing working with various Excel commands and option. Recall that the entire body of the electroscope (not including the casing) is metallic - and thus the charge that you transfer to the ball will be uniformly spread throughout the electroscope. Basically, that means that q₁ q2 = ½ q, where q₁ is the charge on the metal plate, q2 is the charge on the gold foil, and q is the total charge transferred to the electroscope. Below is the data representing the charge transferred to the electroscope vs. the separation between the tip of the gold foil and the tip of the metallic plate. We will use this distance to represent r in Coulomb's law, although, strictly speaking, it's not quite correct as the charges we are using are not point charges. q [pc] 0.80 0.90 1.00 1.10 r [cm] 0.050 0.060 0.075 0.080 q [pc] 1.20 1.50 1.60 1.70 r [cm] 0.090 0.100 0.120 0.130 q [pc] 1.80 1.85 1.95 2.00 r [cm] 0.130 0.140 0.150 0.150 1. Transfer this data into Excel or Google sheets (make columns 1 and 2). Label the columns! 2. Convert cm to m, and pC to C (1 pC= 10-¹2 C) - do this using formulas in Excel, not by hand (columns 3 and 4). Calculate q₁ (column 5). Again, don't forget to label the columns (with units). 3. Use Excel formulas to calculate Coulomb force for each case (column 6). 4. Plot F vs.r (Chart 1, leave in Sheet 1). Remember to label the graph, and both axes with units. 5. What shape did you expect for your plot in #4? What shape did you get? 6. Calculate r² (column 5) and 1/r² (column 7). 7. Plot F vs. (1/r²) (Chart 2, leave in Sheet 1). Remember to label the graph, and both axes with units. 8. What shape did you expect for your plot in #7? What shape did you get? 12. Based on your answer to #11, calculate the Coulomb force. Show your work. 9. Plot q² vs. r² (Chart 3 - put in separate sheet). Remember to label the graph, and both axes with units. Your graph should be linear. Create a best-fit line, and display the equation and the R² value on the graph. 10. Make a second q² vs. r² (Chart 4 - put in separate sheet), this time make the line go through the origin. Again, create a best-fit line, and display the equation and the R2 value on the graph. 11. Think about the slope of the two lines in #9 and # 10. What does the slope represent? Think about the physics of this problem. Which of the two graphs is more appropriate, and why?

a)What is the magnitude of the electric field at a distance of 0.1 nm from a thorium nucleus? b)What is the magnitude of the force on an electron at that distance? c)Treating the electron classically, that is, as a point object that can move around the nucleus at reasonably slow speeds, what is the frequency of the electron's motion? d)Again treating the electron classically, how fast it it moving? e)What would the magnitude of the force be if the distance of the electron from the nucleus were doubled?

A charged plastic rod, when placed near a neutral, tiny, thin piece of paper, can pick up the paper. Which of the following is the best explanation for why this occurs? ANSWER O O O O O The piece of paper is a conductor, and charges of the opposite sign as the rod can move in the conductor closer to the rod. The paper actually had a slight charge to begin with, as nothing can exactly be neutral in nature. There are induced dipoles created in the paper from the presence of the nearby plastic rod. The described phenomenon is actually impossible, as a charged rod can't pick up a neutral piece of paper. I DON'T KNOW YET

I need the answers of a, c and g. Kindly solve it correctly. This questions are solved in wrong way previously. Follow the instructions given with the box.

Observe what happens and complete the generalization on the difference of charging by conduction and induction at the end of the activity.

Parallel conducting plates create nearly uniform fields that are used to accelerate and direct beams of electrons. Typically we would free the electrons from a surface by heating it up.  One way is to run a current  through a wire with resistance.  The power dissipated in the wire causes it to increase its temperature to the point that it can radiate that power away, mostly carried off as light.  The hot electrons escape the potential barrier at the surface and are "free" to use. Consider a source of electrons that is small, like a tiny hot filament.  The electrons are freed from the surface but the positive charge they leave behind holds them in a cloud near the filament.  Now we add another plate at voltage VV some distance dd away.  We put a little hole in that plate to enable the electrons to zip on through.  The experiment looks something like this. While they seem antiquated, the concept is still useful.  It is the basis of modern X-ray tubes, and until  only a few years ago all…

This is a challenging problem. Solve it on paper, writing out each step carefully. When doing calculations, do not round intermediate values. Note: If you have approached the problem in a principled way, do not abandon your approach if your numerical answer is not accepted; check your calculations! Four protons (each with mass 1.7 x 10.27 kg and charge 1.6 x 10-19 C) are initially held at the corners of a square that is 5.1 x 10 mon a side. They are then released from rest. What is the speed of each proton when the protons are very far apart? (You may assume that the final speed of each proton is small compared to the speed of light.) Ufinal= m/s

answer number 1

Needed to be solved 4 and 5 correclty in 1 hour and get the thumbs up please provide correct solution in box please exactly answer