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sertanlavr [38]
3 years ago
14

Do frictional forces act in the same direction or in the opposite direction to the applied force?

Physics
1 answer:
Evgesh-ka [11]3 years ago
3 0

Frictional forces act in the direction opposite to the MOTION. That direction could be the same OR opposite to applied force.

-- If you push a loaded heavy wagon from behind, trying to get it going faster, friction is acting against you, opposite to your force.

-- If you push a loaded rolling heavy wagon from in front, trying to make it slow down, friction is acting with you, in the same direction as your force.

-- Opposite to the motion both times.

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Answer:

None.

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Consider two parallel plate capacitors. The plates on Capacitor B have half the area as the plates on Capacitor A, and the plate
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Answer:

CB = 4.45 x 10⁻⁹ F = 4.45 nF

Explanation:

The capacitance of a parallel plate capacitor is given by the following formula:

C = ε₀A/d

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C = Capacitance

ε₀ = Permeability of free space

A = Area of plates

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FOR CAPACITOR A:

C = CA = 17.8 nF = 17.8 x 10⁻⁹ F

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CA = ε₀A₁/d₁ = 17.8 x 10⁻⁹ F   ----------------- equation 1

FOR CAPACITOR B:

C = CB = ?

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CB = (1/4)(ε₀A₁/d₁)

using equation 1:

CB = (1/4)(17.8 X 10⁻⁹ F)

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The solution is C. 12.7 N.
7 0
3 years ago
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