3 years ago

4.6 billion years ago the earth is created from what

Physics

1 answer:

Lina20 [59]3 years ago

6 0

I'm not positive but if I'm reading the question right it would be the big bang sorry if I'm wrong

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New alleles arising from mutations in a population will

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Increase in frequency over time until they reach fixation, replacing the ancestral allele in the population

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3 years ago

Imagine that you pushed a box, applying a force of 60 newtons, over a distance of 4 meters. How much would you have done?

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You would have done 240 joules of work on the box.

Work = (force) x (distance)

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Mars can have bigger mountains than the Earth because it has a smaller mass and surface gravity.

Katarina [22]

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Work out the following a) Find β = v/c for a person walking at 3 mile/hr and a truck moving at 65 mile/hr. (b) Find γ-1, where γ

balu736 [363]

Explanation:

It is given that,

Speed of the person, v = 3 mile/hr = 1.34 m/s

Speed of the truck, v' = 65 mile/hr = 29.05 m/s

(a) Since, $\beta =\dfrac{v}{c}$

For the person, $\beta =\dfrac{1.34}{3\times 10^8}=4.47\times 10^{-9}$

For the truck, $\beta =\dfrac{29.05}{3\times 10^8}=9.68\times 10^{-8}$

(b) The relativistic factor is given by :

$\gamma=\dfrac{1}{\sqrt{1-\beta^2}}$

For very small velocity, $\beta$

$\gamma=(1-\beta ^2)^{-1/2}\approx 1+\dfrac{1}{2}\beta ^2$

$\gamma-1=\dfrac{\beta^2}{2}$

For the person :

$\gamma-1=\dfrac{(4.47\times 10^{-9})^2}{2}=9.99\times 10^{-18}$

For the person :

$\gamma-1=\dfrac{(9.68\times 10^{-8})^2}{2}=4.68\times 10^{-15}$

Hence, this is the required solution.

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3 years ago

A bug starts at point A, crawls 8.0 cm east, then 5.0 cm south, 3.0 west, and 4.0 cm north to point B.

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https://brainly.ph/question/2753392

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