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ludmilkaskok [199]

3 years ago

4

In the future, astronomers discover a solid moon around a planet orbiting one of the nearest stars. This moon has a diameter of

1948 km and a mass of 1.6 × 1022 kg. What is its density?

1 answer:

svetoff [14.1K]3 years ago

7 0

Answer:

The density is 4134.37 kg/m³.

Explanation:

Given that,

Diameter = 1948 km

Mass $m=1.6\times10^{22}\ kg$

We need to calculate the volume of moon

$V= \dfrac{4}{3}\pi\times r^3$

$V=\dfrac{4}{3}\times\pi\times(974\times10^{3})^3$

$V=3.870\times10^{18}\ m^3$

We need to calculate the density

$\rho=\dfrac{m}{V}$

Where, m = mass

V = volume

Put the value into the formula

$\rho=\dfrac{1.6\times10^{22}}{3.870\times10^{18}}$

$\rho=4134.37\ kg/m^3$

Hence, The density is 4134.37 kg/m³.

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V125BC [204]

Answer with Explanation:

We are given that

Resistance,R=130 ohm

Potential difference, V=30 V

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