er radii, respectively, with a point charge at its center. The surface he surface charge density on the exterior surface is Part A What is the strength of the electric field at point 4 cm from the center? Express your answer to three significant figures and include the appropriate ▸ View Available Hint(s) E= Submit ▾ Part B Submit O Outward Inward The field is zero ▾ Part C μÀ What is the direction of the electric field at point 4 cm from the center? ▸ View Available Hint(s) Value E = Submit What is the strength of the electric field at point 8 cm from the center? Express your answer as an integer and include the appropriate units. ▸ View Available Hint(s) Units HA Value ? Units ?

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Chapter1: Units, Trigonometry. And Vectors
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A hollow metal sphere has 7 cm and 11 cm inner and outer radii, respectively, with a point charge at its center. The surface
charge density on the inside surface is -300 nC/m². The surface charge density on the exterior surface is
+300 nC/m²
▼
Part A
What is the strength of the electric field at point 4 cm from the center?
Express your answer to three significant figures and include the appropriate
► View Available Hint(s)
E =
Submit
Part B
O Outward
O Inward
Submit
O
Part C
E =
Value
The field is zero
μÀ
What is the direction of the electric field at point 4 cm from the center?
► View Available Hint(s)
Submit
0
←
What is the strength of the electric field at point 8 cm from the center?
Express your answer as an integer and include the appropriate units.
▸ View Available Hint(s)
HÅ
Units
Value
www
Units
?
www
?
Transcribed Image Text:A hollow metal sphere has 7 cm and 11 cm inner and outer radii, respectively, with a point charge at its center. The surface charge density on the inside surface is -300 nC/m². The surface charge density on the exterior surface is +300 nC/m² ▼ Part A What is the strength of the electric field at point 4 cm from the center? Express your answer to three significant figures and include the appropriate ► View Available Hint(s) E = Submit Part B O Outward O Inward Submit O Part C E = Value The field is zero μÀ What is the direction of the electric field at point 4 cm from the center? ► View Available Hint(s) Submit 0 ← What is the strength of the electric field at point 8 cm from the center? Express your answer as an integer and include the appropriate units. ▸ View Available Hint(s) HÅ Units Value www Units ? www ?
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