Answer:
The earliest documented mention of the spherical Earth concept dates from around the 5th century BC, when it was mentioned by ancient Greek philosophers.[1][2] In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of the Earth as a physical fact and calculated the Earth's circumference. This knowledge was gradually adopted throughout the Old World during Late Antiquity and the Middle Ages.[3][4][5][6] A practical demonstration of Earth's sphericity was achieved by Ferdinand Magellan and Juan Sebastián Elcano's circumnavigation (1519–1522).[7]
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The most frequent you can do an activity for a workout should be every other day. It is unsafe to exercise (especially for weightlifting) everyday, because our muscles need time to rest and grow. Overworking them may cause injuries, and decreased growth.
Answer:
Yes
Explanation:
The density of the object does not change when it is broken in more pieces, therefore Maria will be able to find the density of the material.
In fact, by breaking the object, then she can take only one piece, and by measuring the mass of this piece and its volume she will be able to calculate the density of the material by using the formula:
where
m is the mass of the piece
V is its volume
d is the density
And the density will be the same for every piece, since they are made by the same material, and the density depends only on the properties of the material itself.
I think the best answer that could be fit to this question and according to the statement that the balloon is moving west so it means that the wind was blowing from east to west in the equator, since the moving of the balloon only affects on the wind pressure that could blown it.