What is the resultant magnitude and direction of the force on a 5.9 µC charge situated on the y-axis, 5.3 cm from the point of origin, due to a pair of 4.3 µC charges located on the x-axis at opposite sides of the point of origin, each at distance of 4.4 cm from the point of origin? a. 17.2 N b. 74.0 N c. 73.0 N d. 76.0 N e. 61.4 N The surfaces of a lipid bi-layer forming the membrane around a cell with a radius of 1.8 µm has a residual charge qr = 10.6x10-15 C on outside of the bi-layer, and the same amount of negative charge on the inside. What is the force in pN (x10-12 N) on a singly-charged positive ion (q=1.6 ×10-19 C) located on the outer surface of this membrane? Hint: Use F = q E = q (0/e) with o = qr/A = qr/ (4π r²) and ε = 8.85 x 10-12 F.m-1.

What is the resultant magnitude and direction of the force on a 5.9 µC charge situated on the y-axis, 5.3 cm from the point of origin, due to a pair of 4.3 µC charges located on the x-axis at opposite sides of the point of origin, each at distance of 4.4 cm from the point of origin? a. 17.2 N b. 74.0 N c. 73.0 N d. 76.0 N e. 61.4 N The surfaces of a lipid bi-layer forming the membrane around a cell with a radius of 1.8 µm has a residual charge qr = 10.6x10-15 C on outside of the bi-layer, and the same amount of negative charge on the inside. What is the force in pN (x10-12 N) on a singly-charged positive ion (q=1.6 ×10-19 C) located on the outer surface of this membrane? Hint: Use F = q E = q (0/e) with o = qr/A = qr/ (4π r²) and ε = 8.85 x 10-12 F.m-1.

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ISBN:9781305952300

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Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

What is the resultant magnitude and direction of the force on a 5.9 µC charge situated on the y-axis, 5.3 cm from the
point of origin, due to a pair of 4.3 µC charges located on the x-axis at opposite sides of the point of origin, each at
distance of 4.4 cm from the point of origin?
a. 17.2 N
b. 74.0 N
c. 73.0 N
d. 76.0 N
e. 61.4 N
The surfaces of a lipid bi-layer forming the membrane around a cell with a radius of 1.8 µm has a residual charge qr =
10.6x10-15 C on outside of the bi-layer, and the same amount of negative charge on the inside. What is the force in
pN (x10-12 N) on a singly-charged positive ion (q =1.6 ×10-1⁹ C) located on the outer surface of this membrane? Hint:
Use F = q E = q (o/e) with o = qr/A = qr/ (4π r²) and = 8.85 x 10-12 F.m-1.
Answer:

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