A small block of mass m and charge Q is placed on an insulated, frictionless, inclined plane of angle as in the figure below. An electric field is applied parallel to the incline. Q m E = (a) Find an expression for the magnitude of the electric field that enables the block to remain at rest. (Use any variable or symbol stated above along with the following as necessary: g for the acceleration due gravity. Note that the charge of Q is unknown.) i (b) If m= 5.41 g, Q = -7.49 μC, and 0 = 26.3°, determine the magnitude and the direction of the electric field that enables the block to remain at rest on the incline. magnitude N/C direction ---Select---

University Physics Volume 2
18th Edition
ISBN:9781938168161
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Chapter7: Electric Potential
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Problem 101AP: Earth has a net charge that produces an electric field of approximately 150 N/C downward at its...
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A small block of mass m and charge Q is placed on an insulated, frictionless, inclined plane of angle as in the figure below. An electric field is applied parallel to the incline.
Q
m
E =
(a) Find an expression for the magnitude of the electric field that enables the block to remain at rest. (Use any variable or symbol stated above along with the following
as necessary: g for the acceleration due gravity. Note that the charge of Q is unknown.)
i
(b) If m = 5.41 g, Q = -7.49 μC, and 0 = 26.3°, determine the magnitude and the direction of the electric field that enables the block to remain at rest on the incline.
magnitude
N/C
direction
---Select---
Transcribed Image Text:A small block of mass m and charge Q is placed on an insulated, frictionless, inclined plane of angle as in the figure below. An electric field is applied parallel to the incline. Q m E = (a) Find an expression for the magnitude of the electric field that enables the block to remain at rest. (Use any variable or symbol stated above along with the following as necessary: g for the acceleration due gravity. Note that the charge of Q is unknown.) i (b) If m = 5.41 g, Q = -7.49 μC, and 0 = 26.3°, determine the magnitude and the direction of the electric field that enables the block to remain at rest on the incline. magnitude N/C direction ---Select---
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