Q2. The magnitude of the electric force between two protons is 2.30 3 10226 N. How far apart are they? (a) 0.100 m (b) 0.0220 m. (c) 3.10 m (d) 0.005 70 m. (e) 0.480 m
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- 3. A 3.2 µC charge is placed so that it is 0.3 m above a -4.5 µC charge. (a) What is the magnitude of the force on the 3.2 µC charge? A) 0.048 N B) 0.13 N C) 0.16N D) 0.432 N E) 1.44 N (b) (c) What is the potential energy of the two charges, if PE = 0 (as E) 1.44 N usual)? A) 0.048 N B) 0.13 N C) 0.16N D) 0.432 N If released, the 3.2 µC will move A) upward↑ B) downward ↓ (d) As the charges move in the direction you indicated in the previous part, the potential energy of the charges A) increases B) decreases +3.2µC 0.3m -4.5µC3. A hydrogen atom contains a single electron that moves in a circular orbit about a single proton. Assume the proton is stationary, and the electron has a speed of 6.6 x 105 m/s. Find the radius between the stationary proton and the electron orbit within the hydrogen atom. m9. At the corners of a rectangle, as shown in the figure, four charges are locatedidentical points (q = +10.0 mC). The dimensions of the rectangle are L = 60.0 cm and W = 15.0cm. Calculate (a) the magnitude and (b) the direction of the total electric force exerted by the other threeloads on the load in the lower left corner.
- Find the magnitude of the electric force on the 2.0 uC (microcoulomb) charge. A. 0.15 N B. 0.20 N C. 0.25 N D. 0.35 N116,973 electrons are removed from two identical spheres. Two equally positive charged spheres are then separated so that the repulsive force on each sphere has a magnitude of 3.02 x 10-15 newtons. What is the distance between the spheres in meters? Use k = 9.0 x 109 N m2/C29
- Problem 7 An electron is placed in a uniform electric field of 0.15 N/C. Assume that the velocity of the electron is zero at t= 0. What is the velocity of the electron at t = 1 milliseconds? A) 5.3 × 10^7 m/s B) 8.8× 10^6 m/s C) 5.2× 10^7 m/s D) 2.6 × 10^7m/sE) 7.6 × 10^7 m/sQ3. Two protons in an atomic nucleus are typically sepa- rated by a distance of 2.3*10^-15 m. The electric repulsive force between the protons is huge, but the attractive nuclear force is even stronger and keeps the nucleus from bursting apart. What is the magnitude of the electric force between two protons separated by 2.3*10^-15 m (if you know that the charge of proton = 1.6*10-19)?36. What is the amount of energy stored in the 40 μF with a charged of 225 μC? A. 6.3281 x10 -6 J C. 63.281 x10 -4 J B. 63.281 x10 -5 J D. 632.81 x10 -6J
- 4. Electric fields of varying magnitudes are directed either inward or outward at right angles on the faces of a cube, as shown in the figure. What is the strength and direction of the field on the face F? 15.0 N/C A 25.0 N/C B 20.0 N/CE 10.0 NIC D 20.0 N/C A. The field on the face F is 60.0 N/C out of the face of the cube. B. The field on the face F is 60.0 N/C into the face of the cube. C. The field on the face F is 60.0 N/C into the face of the cube. D. None of the above1) An electron is released from rest in a weak electric field given by -2.9 x 10-10 N/C Ĵ. After the electron has traveled a vertical distance of 1.9 µm, what is its speed? (Do not neglect the gravitational force on the electron.) mm/s Submit You currently have 2 submissions for this question. Only 10 submission are allowed. You can make 8 more submissions for this question.2.4c)