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melamori03 [73]
3 years ago
12

When 2 forces are applied in opposite directions, how do you calculate the net force?

Physics
1 answer:
Effectus [21]3 years ago
3 0
You find the net force by subtracting.
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6)An electric field of 6 N/C points in the positive X direction. What is the electric flux through a surface that is 4 m2, if it
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Answer:

Flux is 21 Nm^2/C.

Explanation:

Electric field, E = 6 N/C along X axis

Electric filed vector, E = 6 i N/C

Area, A = 4 square meter

Area vector

\overrightarrow{A} = 4 (cos30 \widehat{i} + sin 30 \widehat{j})\\\\\overrightarrow{A} = 3.5 \widehat{i} + 2 \widehat{j}\\

The flux is given by

\phi= \overrightarrow{E}.\overrightarrow{A}\\\\\phi = 6 \widehat{i} .  \left (3.5 \widehat{i} + 2 \widehat{j}  \right )\\\\\phi = 21 Nm^2/C

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