When a 191 N bag of nails hangs motionlessfrom a single vertical strand of rope, how
much tension is exerted in the strand?
Answer in units of N.
Answers
At the place where the rope meets the bag, the upward force
of the rope must be exactly the same as the downward force of
the load of nails. If the net force at that point were not zero, then
that point would be accelerating either upward or downward. So
the upward force of the rope at that point is 191 N.
I can't tell you about the tension higher up in the rope. If the rope
itself has any mass, then points higher up must support not only
the bag of nails but also the weight of the section of rope that is
below the point.
If the rope has no mass, then the tension is 191 N everywhere along it.
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Answers
The angle of refraction of light ray in the corn oil is 20°.
What is angle of Refraction?
Angle of refraction is the angle the refracted light ray makes with the normal to the oil-air interface.
Given data:
Angle of incidence = 30°
Analysis:
The refractive index of oil is 1.47.
Using the formula for refractive index(n) =
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sin r =
sin r = 0.3401
r = arc sin(0.3401)
r = 19.88° which is approximately 20°
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Answer:
its 20 degrese
Explanation:
Answers
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Answers
Answer:
True
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Answers
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The reason why we ought to have the earth connection is because the earth connection helps to prevent the casing from turning into a live wire.
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Answers
Answer:
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Answers
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