2) A dust particle has 1.00 x 10^16 protons and a net charge of 0.300 pico Coulomb. a) How many fever electrons are there than protons? b) If you paired them up, what fraction of the protons would have no electrons?
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2) A dust particle has 1.00 x 10^16 protons and a net charge of 0.300 pico Coulomb.
a) How many fever electrons are there than protons?
b) If you paired them up, what fraction of the protons would have no electrons?
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- 2- An Electron is emitted by heating a cathode and is accelerated by the potential difference of V volts between the anode and a cathode. The electron emerges out from the anode with velocity 45109311.4 m/s. Find velocity of the electron when it comes out of the parallel plates. Use x = 17 m and y = 0.05 m.3. Two infinite sheets of equal and opposite charge are placed facing each other with a distance of 1.50 m separating them. The positive sheet is on the left and the negative sheet is on the right. If a lone point charge of -5.00 µC with a mass of 3.15 x 10-7 kg is at the midpoint between the plates and is released from rest, it reaches the positive sheet with a speed of 1200 m/s. a) Through what electric potential difference did the point charge move?You have a sample of lithium metal that is electrically neutral. What is the approximate ratio of the mass of each positively charged particle in your lithium sample to each negatively charged particle in your lithium sample? O About 3:1 O About 14000:1 O About 7:1 O About 1000:1 O About 1.0e19:1 O About 1:1
- What will happen if two protons close to each other were released from rest? A. They will attract B. They will move in opposite directions and stop C. They will move in opposite directions and continue moving forever. D. They will move towards each other and stop. a O bListen A metal ball has - 3 Coulomb of charge. If it receives 0.50*10^20 number of electrons, what will be the resultant charge of the ball? Your Answer: C Answer units Type here to search a 957 AM 2/11/2022 Osc go delete home end an ed %$4 4. %23 num 2 3. 6. 8. + backspace %3D Icok W R T. Y U 7. 8. tab home an ea G H 4. 6. enter caps lock 4. prt sc * shift 2. 3.Q 4 please
- only 7 and 8Use the following constants if necessary. Coulomb constant, k = 8.987 x 10° N m2 /C. Vacuum permitivity, eo = 8.854 x 10 12 F/m. Magnitude of the Charge of one electron, e =-1.60217662 x 10-19 C. Mass of one electron, m, = 9.10938356 x 10-31 kg. Unless specified otherwise, each symbol carries their usual meaning. For example, uC means micro coulomb. Y R. Suppose you have 5 point charges q to q, distributed along a semi-circle maintaining equal distance. The charge q6 is on the center of the circle which is also the origin of given coordinate system. The radius of the semi-circle is R = 34 cm and the magnitude of the charges are as follows : 91 = = 19 µC, q2 = q4 = 32 µC and q = q6 = -25 µC. a) Find the vector that points from q to g6 and call it F1,6- b) Calculate the coulomb force on g6 due to q in unit vector notation and call it F16 c) Find the vector that points from q3 to g6 and call it F3,6- d) Calculate the coulomb force on q6 due to g in unit vector notation and call it F36. e)…Coulomb’s law tells us that the electrostatic force between two charged objects can be calculated by: ?= ??1?2/?^2Where k is a constant with a value of 8.99x109 Nm2/C2; ?1 and ?2 are the charges of the two particles (1.602x10-19 C), and r is the distance between the two particles. The force is attractive if the charges of the two particles is opposite (one’s positive and one’s negative) and repulsive if the charges have the same charge (both positive or both negative). Calculate the electrostatic force on proton #1 from the other two protons.Will the gravitational force between the protons be attractive or repulsive? What about the electrostatic force? Which has the larger magnitude, the electrostatic force or the gravitational force? Can the electrostatic and gravitational forces alone create a stable Lithium nucleus?
- The ratio of the electrostatic force to the gravitational force is different between two electrons and two protons. Why? I. The magnitude of the fundamental charge of an electron is different from a proton. II. Electrons and protons have different masses. III. False. The ratio is the same A. III only B. Both I and II only C. II only D. I onlyCH19 P3 A bare nucleus has 8.0 positive charges and a mass of 5.31?−26 -kg. Include units for all answers. (a) Calculate its kinetic energy in Joules at 14.014.0% of the speed of light. (b) What is this in electron volts? (c) What voltage would be needed to obtain this energy?The distance, r, between the proton and electron in the hydrogen atom is about 10^-10m. i) Calculate the electrostatic force between the electron and proton. ii) Determine the value of the potential energy U of the electron in the hydrogen atom. Express your result in electron-volts (eV). Recall 1 eV = 1.6 × 10^−19 J. iii) Determine the value of the kinetic energy of the electron. Express your result in eV. Please answer all parts.