A glass rod that has been charged to +12.0 nC touches a metal sphere. Afterward, the rod’s charge is +8.0 nC. In both cases the fractional uncertainty is 1%. a. What kind of charged particle was transferred between the rod and the sphere, and in which direction? That is, did it move from the rod to the sphere or from the sphere to the rod? b. How many charged particles were transferred? Give full explanations

a. Draw the electric field lines around a system that consists of two equal negative charges.  b. Calculate the electric force that exists between two objects that are 7.3 × 10 –2 m apart and carry charges of 4.5 × 10 –6 C and –7.2 × 10 –6 C. Is this force attractive or repulsive? c. Write two or three sentences to explain the effect on the electric force between two charged objects if the amount of charge on one of the objects is doubled at the same time as the distance between the objects is doubled.

Red blood cells can often be charged. Consider two red blood cells with the following charges: -17.6 pc and +49.8 pC. The red blood cells are 3.31 cm apart. (1 pC = 1 × 10-12 C.) ..(a)..What.is.the magnitude of the force on each red blood cell? Enter a number. alculate the force of a charged particle on another charged particle? N Are the red blood cells attracted or repulsed by each other? attracted repulsed (b) The red blood cells come into contact with each other and then are separated by 3.31 cm. What magnitude of force does each of the red blood cells now experience? What is the net charge of the system? Assuming the cells are identical, how much charge will each have after contact? N Are the red blood cells attracted or repulsed by each other? attracted repulsed

Pls help I’m about to cry

Consider two charge Q1 = -2 x 10-6 [C] and Q2 = 4 x 10-0 [C] separated by a distance r = 0.05 [m). a. What is the magnitude of the electric force between two charges? F = [N] b. The electric force between the two charges is c. Suppose that the magnitude of the electric force between two charges is equal to: 43.2 [N]. What will be the magnitude of this force if the distance between the two charges is doubled while the charges are kept the same. F = [N]

(a)    6.33  106 electrons and 7.71  106 protons 1.2688e-12What is the charge of an electron? What is the charge of a proton? C(b)    215 electrons and 111 protons 5.216e-17What is the charge of an electron? What is the charge of a proton? C   It said that those answers were wrong. I don't know where its wrong. it looks right in your work.

Which of the following pairs of particles will REPEL each other? Choose all that apply. a. 2 protons b. A proton & a -873 ?C charge c. A negative ion & a +390 ?C charge d. An electron and a negative ion e. An electron & a neutrino f. A neutron & a neutrino g. A positive ion & a negative ion h. A +752 ?C charge & a +786 ?C charg

A dust particle has an excess electrical charge of -5.5 μC and a mass of (1* 10^-5 kg) The dust particle is suspended at rest at a distance of 5 cm above a small electrically charged plate.   a. sketch situation b. draw a fore diagram for the dust particle c. determine the electrical charge of the plate d.  Does the answer make sense? How do you know

1. Ernest Rutherford's gold foil experiment led to the discovery of the atomic nucleus. In the experiment, alpha particles were fired at a thin gold foil. Suppose that an alpha particle (charge +2e, mass 6.64 x 10-27 kg) is fired at a gold nucleus (charge +79e) with a kinetic energy of 5.0 MeV. a. Convert the kinetic energy of the alpha particle to joules. b. In order for the alpha particle to be deflected, it must experience an electrostatic repulsion from the gold nucleus that does work to remove it's kinetic energy and change its direction. Determine the distance at which this occurs. (hint- use conservation of energy) C. The radius of a gold atom is 166pm. Does the alpha particle have be "inside" the atom to be deflected?

What is the magnitude of the electric field at a point midway between a -5.9 uC and a +8.2 uC charge 8.8 cm apart? Assume no other charges are nearby. Express your answer using two significant figures: E= (what value) in (what units)? What is the direction of the electric field? Toward the positive charge  Toward the negative charge   P.S. I know nothing about this but I have a good idea are some quick google help. I feel like I understand the concept but I want to verify the work before I'm able to help a friend with this problem. It would be helpful if you can list all the steps- I can reverse engineer with no issues.