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lakkis [162]
3 years ago
5

There are free body diagrams in the picture, number (#). Which of the diagram(s) shows an object with a net force right?

Physics
2 answers:
zubka84 [21]3 years ago
7 0

Answer:

Figure (4)

Explanation:

In this case 4 free body diagrams are shown. In Figure (1), there is no normal force acting on the object. It will accelerate in downwards direction.

In figure (2), the box is balanced. All forces cancel out each other.

In figure (3), the box is not balanced. The horizontal forces cancel out each other while the downward force is greater than the greater than upward force. The object will accelerate in downward direction.

In figure (4), no normal force is acting. In this case, the force towards right is more than the force towards left. So, the object will move towards right.

Hence, the correct option is (c) " figure (4) only".

ryzh [129]3 years ago
6 0
4 only diagram net Force
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Answer:

0.00712 m

Explanation:

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The magnitude of force is given by Coulomb's law which states that, the magnitude of force acting between two charged particles separated by a distance is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.

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Plug in the given values and solve for 'd'. This gives,

1.00=\frac{9\times 10^9\times 75.0\times 10^{-9}\times 75.0\times 10^{-9} }{d^2}\\\\d^2=\frac{9\times 10^9\times 75.0\times 10^{-9}\times 75.0\times 10^{-9} }{1.00}\\\\d=\sqrt{\frac{9\times 10^9\times 75.0\times 10^{-9}\times 75.0\times 10^{-9} }{1.00}}\\\\d=0.00712\ m

Therefore, the distance between the charges is 0.00712 m.

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