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3 years ago

Pluto has a radius of 1.15 x 106 m

Physics

1 answer:

Nikitich [7]3 years ago

5 0

Answer:

$g=0.66\ m/s^2$

Explanation:

We have,

The radius of Pluto is $1.15\times 10^6\ m$

Mass of Pluto is $1.31\times 10^{22}\ kg$

It is required to find the acceleration of gravity on its surface. The formula used to find the acceleration is given by :

$g=\dfrac{Gm}{r^2}\\\\g=\dfrac{6.67\times 10^{-11}\times 1.31\times 10^{22}}{(1.15\times 10^6)^2}\\\\g=0.66\ m/s^2$

So, the acceleration due to gravity on Pluto is $0.66\ m/s^2$ .

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Anna11 [10]

Answer:

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b. 111.5 m

Explanation:

a. The minimum number of turns per unit length (N/L) can be found using the following equation:

$B = \frac{\mu_{0}NI}{L}$

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b. The total length of wire is the following:

$N = 2143 turns/m*L = 2143 turns/m*46.0 \cdot 10^{-2} m = 986 turns$

Since each turn has length 2πr of wire, the total length is:

$L_{T} = N*2\pi r = 986 turn*2*\pi*1.80 \cdot 10^{-2} m = 111.5 m$

Therefore, the total length of wire required is 111.5 m.

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