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Phoenix [80]
3 years ago
12

At any given time in space, how much of the moon is lit by the sun? PLEASE ANSWER QUICKLY!!!

Physics
1 answer:
nikklg [1K]3 years ago
3 0

Answer: 50%

Explanation: The sun and the moon go around Earth and The sun is way bigger than the moon so 50% of the sun lights up the moon at night

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Answer:

12.25m/s

Explanation:

d=v_ot+\dfrac{1}{2}at^2

Since the initial velocity of the dropped rock is 0, you can write this as:

d=\dfrac{1}{2}(9.8)(3)^2=44.1m

Now, you can set up the equation for the thrown rock:

44.1=v_o(2)+\dfrac{1}{2}(9.8)(2)^2 \\\\\\44.1=2v_o+19.6 \\\\\\2v_o=24.5 \\\\\\v_o=12.25m/s

Hope this helps!

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Index fossils are used to determine the relative ages of rock and fossils and are also used to
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Index fossils are used to determine the relative ages of rock and fossils and are also used to define the boundaries between geologic periods.

<u>Option: A</u>

<u>Explanation:</u>

The fossils which are recognized as fossils guides or indicator fossils are used to classify and recognize geological or faunal periods, termed as index fossils. It must be of short vertical reach, wide geographic distribution and swift patterns in evolution. It helps to assess the rock layers ' age and helps to date other fossils found close and around them. For an instance, Ammonites were abundant in the Mesozoic period between 245 to 65 mya, they have not been found after the Cretaceous era, as they became endangered during the K-T extinction (65 mya).

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