Charge Q is distributed uniformly along a semicircle of radius 0.5a. Which formula below gives the correct magnitude of the force on a particle of charge q located at the center of the circle? Select one: d a. 1 F = 4πε, πa? 8qQ O b. 1 F = 4 T E, 3 na? C. 1 F = 4 TT E, na? qQ d. 1 F = 4πε, πa3/2 qQ е. 1 F = 7qQ 4 T E. па?
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- A line of positive charge is formed into a semicircle of radius R = 75.0 cm, as shown in the figure below. The charge per unit length along the semicircle is given by the expression 1 = 1, cos(0). The total charge on the semicircle is 12.0 µC. Calculate the total force on a charge of 5.00 µC placed at the center of curvature. y R. magnitude N. direction downward vTwo charges +2 μC and +7 μC are placed along the xx axis, with the first charge at the origin (x=0) and the second charge at x=+1. Find the magnitude and direction of the net force on a -10 nC charge when placed at the following locations below. a. halfway between the two charges:What is the magnitude of the force (in mN) and its direction (in -x or +x direction)? b. on the x axis at x=-0.5 m: What is the magnitude of the force (in mN) and its direction(in -x or +x direction)? c. at the coordinate (x,y)=(1 m,0.5 m) (half a meter above the +7 μC charge in a direction perpendicular to the line joining the two fixed charges): What is the magnitude of force (in mN) and the direction (in degrees) below -x axisRed 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
- Three point charges are fixed as shown in (Figure 1). Take q₁ = 20 μC, q2 = -30 μC, 93 = 40 μC, and d = 9.0 mm. The point charge of 3.6 μC is placed at the center of the triangle. Figure y Ko 0 X 93 91 d 92 ▼ Part A What is the magnitude of the force exerted on the charge at the center of the triangle? Express your answer with the appropriate units. |F|net Submit Part B = 0 = 346 Submit O HÅ Value What is the direction of the force exerted on the charge at the center of the triangle? Express your answer in degrees, measured counterclockwise from the positive x-axis. Request Answer ✔ Correct Previous Answers Units P Pearson Wwwwww ?(Figure 1) shows five electric charges. Four charges with the magnitude of the charge 2.0 nC form a square with the size a = 2.0 cm. Positive charge with the magnitude of q = 2.0 nC is placed in the center of the square. Figure My Research Fo. -2.0 nC -2.0 nC y a 9 2.0 nC + a + 2.0 nC ▼ What is the magnitude of the force on the 2.0 nC charge in the middle of the figure due to the four other charges? Express your answer with the appropriate units. Fon q = Submit Part B O 0 = HÅ Value Request Answer Units ? What is the direction of the force on the 2.0 nC charge in the middle of the figure due to the four other charges? Express your answer in degrees to two significant figures. 15. ΑΣΦ wwww. 2 Review | Constants | Periodic Table ? counterclockwise from the positive x-axisA charged metal sphere of radius Rs and a charged, flat metal disk of radius Rp are connected by a long conducting wire. The sphere has a charge Qs (assume it is uniformly distributed on its surface). What is Qp, the charge on the disk (assume it is uniformly distributed on its surface)? Give your answer in nC to at least three digits to avoid being counted off due to rounding. Rs = 0.40 m, Rp = 0.33 m, Qs = 29.3 nC Sphere Qs, Rs 2D Disk QD, RD
- a. 1. For each of the following charge distributions, find the net electric force on charge 1, due to the other charges. Is it 425.55N or 50.20N or something else? 2.0 x 105 C 0.24 m 4.0 x 105 C -6.0 x 105 C 92 0.14 mCharges q1, 92 and 93 are arranged in the x-axis. Charge q3 = 14 nC and is at the origin. Charge q2 = 3.8 nC and is at x = 9 cm. Charge q1 is at x = 5 cm. Solve for q1 (magnitude and sign) if the net force on q3 is zero. Express your answer in nC.Four identical charged particles (g = +10.2 µC) are located on the corners of a rectangle as shown in the figure below. The dimensions of the rectangle are L = 65.4 cm and W = 15.1 cm. W L b. (a) Calculate the magnitude of the total electric force exerted on the charge at the lower left corner by the other three charges. 44 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. N
- Charges q1, 92 and q3 are arranged in the x-axis. Charge q3 = 14 nC and is at the origin. Charge q2 = -3.5 nC and is at x = 2 cm. Charge q1 is at x =2. Solve for q1 (magnitude and sign) if the net force on q3 is zero. Express your answer in nC.esc Point charges q1 = 55μC and q2 = Hint a. What is the force on a third charge 93 = Force on q3 is 40μC are placed 0.8 m apart. N, in Select an answer b. Where can q3 be placed so that the net force on it is zero? If q3 is placed Select an answer Question Help: Message instructor Submit Question 15μC placed midway between 9₁ and 92? m from q1, the net force on it will be zero. at a distance of с Course Chat MacBook E Search or type URLTwo point charges are placed on the x-axis as follows: Charge q1=+4.00nC is located 0.20m,and charge q2=+5.00nC is at x=-0.30m. a.Draw a sketch of te setting discussed in the question above. Make sure to label all points discussed. b. What are the magnitude and direction of the total force exerted by these two charges on a negative point charge q3=-6.00nC that is placed at the origin?