2. (a) A -12 nC charge and a 5 nC charge are located on the x-axis at x=-1 cm and x=5 cm respectively. i.At what distance (in cm) directly above the 5nC charge is the electric potential equal to zero? 08.97 01.07 05.80 04.13 02.75 02.39 ii.What is the electric field (in N/C) at this location (given as a magnitude and the proper polar angle)? Magnitude 01.76e+05 047100 O1.14e+05 O21100 081100 054100 Angle 0172 0242 0374 O99.7 O44.7 O115 iii.How far to the left of the -12nC charge does the electric potential equal -27V? 02.37 07.74 05.01 O2.07 O0.926 O3.56 iv. What is the magnitude (in N/C) of the electric field at this location? 011.6 017.3 04.51 O10.1 O37.7 O24.4 (b) Two very small metal point-like spheres with masses 6 g and 10 g are tied together by a 4 cm long massless string and are at rest on a frictionless surface. Each is charged to 5 UC. i.What is the energy (in J) of this system? 02.19 04.89 05.63 08.44 O11.9 O18.3 ii.What is the tension (in N) in the string? 0297 0211 0458 0122 054.8 0141 iii.The string is cut. What is the speed (in m/s) of each sphere when they are far apart? (HINT: You will need to use TWO conservation laws here. One of them is Energy Conservation, think back to Physics I for the other). Speed of m1 O34.2 O13.4 0112 O29.8 O72.2 O51.3 Speed of m2 O20.5 043.3 067.0 08.01 O30.8 O17.9
2. (a) A -12 nC charge and a 5 nC charge are located on the x-axis at x=-1 cm and x=5 cm respectively. i.At what distance (in cm) directly above the 5nC charge is the electric potential equal to zero? 08.97 01.07 05.80 04.13 02.75 02.39 ii.What is the electric field (in N/C) at this location (given as a magnitude and the proper polar angle)? Magnitude 01.76e+05 047100 O1.14e+05 O21100 081100 054100 Angle 0172 0242 0374 O99.7 O44.7 O115 iii.How far to the left of the -12nC charge does the electric potential equal -27V? 02.37 07.74 05.01 O2.07 O0.926 O3.56 iv. What is the magnitude (in N/C) of the electric field at this location? 011.6 017.3 04.51 O10.1 O37.7 O24.4 (b) Two very small metal point-like spheres with masses 6 g and 10 g are tied together by a 4 cm long massless string and are at rest on a frictionless surface. Each is charged to 5 UC. i.What is the energy (in J) of this system? 02.19 04.89 05.63 08.44 O11.9 O18.3 ii.What is the tension (in N) in the string? 0297 0211 0458 0122 054.8 0141 iii.The string is cut. What is the speed (in m/s) of each sphere when they are far apart? (HINT: You will need to use TWO conservation laws here. One of them is Energy Conservation, think back to Physics I for the other). Speed of m1 O34.2 O13.4 0112 O29.8 O72.2 O51.3 Speed of m2 O20.5 043.3 067.0 08.01 O30.8 O17.9
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter20: Electric Potential And Capacitance
Section: Chapter Questions
Problem 32P
Related questions
Question
Transcribed Image Text:2.
(a) A -12 nC charge and a 5 nC charge are located on the x-axis at x=-1 cm and x=5 cm respectively.
i.At what distance (in cm) directly above the 5nC charge is the electric potential equal to zero?
08.97 01.07 05.80 04.13 02.75 02.39
ii.What is the electric field (in N/C) at this location (given as a magnitude and the proper polar angle)?
Magnitude
01.76e+05 047100 O1.14e+05 O21100 081100 054100
Angle
0172 0242 0374 O99.7 O44.7 O115
iii.How far to the left of the -12nC charge does the electric potential equal -27V?
02.37 07.74 05.01 O2.07 O0.926 O3.56
iv. What is the magnitude (in N/C) of the electric field at this location?
011.6 017.3 04.51 O10.1 O37.7 O24.4
(b) Two very small metal point-like spheres with masses 6 g and 10 g are tied together by a 4 cm long massless string and are at rest on a frictionless surface. Each is charged to 5 UC.
i.What is the energy (in J) of this system?
02.19 04.89 05.63 08.44 O11.9 O18.3
ii.What is the tension (in N) in the string?
0297 0211 0458 0122 054.8 0141
iii.The string is cut. What is the speed (in m/s) of each sphere when they are far apart? (HINT: You will need to use TWO conservation laws here. One of them is Energy Conservation, think back to Physics I for the other).
Speed of m1
O34.2 O13.4 0112 O29.8 O72.2 O51.3
Speed of m2
O20.5 043.3 067.0 08.01 O30.8 O17.9
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