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3 years ago

When two forces act in the same direction, they are ________________________ together.

Physics

1 answer:

lesya [120]3 years ago

5 0

Answer:

Add

Explanation:

When two forces are acting in the same direction then there magnitude are added to each other

Let the first force is $F_1$ and second force is $F_2$ and when they act in same direction then their equivalent will be equal to

$F=F_1+F_2$

When they cat in opposite direction then their equivalent will be $F=F_1-F_2$

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Aluminum wire 1.00 mm in radius is to be used to construct a solenoid 15.0 mm in radius so that the magnitude of the magnetic fi

Leto [7]

To solve this problem we will proceed to use the equations given for the calculation of the resistance, in order to find the radius of the cable. Once the length is found we can find the number of turns of the solenoid and finally the net length of it

The resistance of the wire is

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$\rho$ = Resistivity

L = Length

A = Cross-sectional Area

That can be also expressed as,

$R = \frac{\rho L}{\pi r^2}$

Rearranging the equation for the length of the wire we have

$L= \frac{R\pi r^2}{\rho}$

$L= \frac{3\Omega \pi(1*10^{-3})}{2.655*10^{-8}\Omega \cdot m}$

$L = 354.8m$

The number of turns of the solenoid is

$N = \frac{L}{2\pi r} \rightarrow$ Denominator is equal to the circumference of the loop

$N = \frac{354.8}{2\pi(15*10^{-3})}$

$N = 3766$

Finally the Length of he solenoid is

$l = N (\phi)$

Where \phi is the diameter of wire

$l = N (2r)$

$l = (3766)(2*(1*10^{-3}))$

$l = 7.532m$

Therefore the length of the solenoid is 7.532m

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4 years ago

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Answer:

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