science
posted by luca .
1) The moon is about 250,000 miles away from the Earth. To the nearest centimetre, how far would it be from the Earth in our scale model?
2) In this mode, how far away from the Earth would the Sun be?

We can not do this without knowing the scale ratio between your model and the real thing.
Unless your scale is expressed in number of centimeters to real miles, you will have to do the conversion of miles to centimeters first. 
sry i will write whole questions:
Do you know how big the Sun is? The Sun is 400 times as big as the Moon and 400 times as far away.
The Moon: 2.5mm diameter
a) How big would the Sun be if the Moon were the size shown above?
b) The Sun is actually about 865,000 miles in diameter, so 1 cm of the model represents how many miles?
c) The Moon is about 250,000 miles away from the Earth. To the nearest centimetre, how far would it be from the Earth in our scale model?
d) In this model, how far away from the Earth would the Sun be?
I do not understand above questions of b), c) and d) . Thank you so much for your help 
Do you know how big the Sun is? The Sun is 400 times as big as the Moon and 400 times as far away.
The Moon: 2.5mm diameter
a) How big would the Sun be if the Moon were the size shown above?
b) The Sun is actually about 865,000 miles in diameter, so 1 cm of the model represents how many miles?
c) The Moon is about 250,000 miles away from the Earth. To the nearest centimetre, how far would it be from the Earth in our scale model?
d) In this model, how far away from the Earth would the Sun be? 
the sun is actually about 865,000 miles in diameter, so 1cm of the model represents how many miles?
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