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diamong [38]
3 years ago
5

A 15m long wire is placed horizontally on the surface of a liquid and is gently pulled up with the force of 60N to keep the wire

in equilibrium.what is the surface tension of the liquid?​
Physics
1 answer:
Ksivusya [100]3 years ago
5 0

Answer:

2 N/m

Explanation:

Given that

The length of a wire, l = 15 m

Force on the wire, F = 60 N

Surface tension on the liquid, S = ?

The formula to solve this problem is given as

F = S * 2 L, where

F = force on the liquid

S = surface tension of the liquid

L= length of the wire

On substituting the values of each, we have

60 = S * (2 * 15)

S = 60 / 30

S = 2 N/m

Thus, we can say then, that the surface tension of the liquid is 2 N/m

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Complete Question

How many turns are in its secondary coil, if its input voltage is 120 V and the primary coil has 210 turns.

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Answer:

The value  is  N_s  =  21 \  turns

Explanation:

From the equation we are told that

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From the transformer equation

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A certain superconducting magnet in the form of a solenoid of length 0.72 m can generate a magnetic field of 3.5 T in its core w
ira [324]

Answer:

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Explanation:

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Answer:

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