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3 years ago

What element has fewer valence electrons than magnesium

Biology

1 answer:

Reptile [31]3 years ago

7 0

Any element in the first column of the periodic table. Hydrogen, lithium, sodium, and potassium are a few examples

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Which best completes the sentence? If something is made of cells then it A. is a living thing. B. might be a living thing. C. is

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C us the answer to the answer

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4 years ago

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Which organism has the most energy available?

svetlana [45]

Answer:

B.Plants

Explanation:

They are considered as autotrophs because they manufacture their own food and have the highest amount of energy.

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3 years ago

While studying for your physical anthropology midterm, your classmate tells you that the bones of Lucy, a famous australopitheci

ludmilkaskok [199]

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This specimen is also far too old for C-14 dating to be accurate, as well as for any other technique but palaeomagnetic dating.

Explanation:

The second part of the sentence is not accurate, since the remains were dated by uranium-lead dating. Carbon-14 dating measures ages in the tens of thousands of years, and uranium-lead dating measures in the millions to billions of years.

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3 years ago

Kepler's second law using Mercury , which has an orbital period of about 0.24 and a semimajor axis of about 0.387 . Explain your

krok68 [10]

As the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.

<h3>What is Kepler's second law?</h3>

Kepler's second law of planetary motion describes the speed of a planet traveling in an elliptical orbit around the Sun.

This law exaplains the speed of planets around the sun, the speed of the planet increases as it nears the sun and decreases as it recedes from the sun.

From the findings, the astronomical unit of the Mercury is 0.387 and the orbital period is 0.24 year.

$T \propto a^{3/2}$

$T = ka^{3/2}\\\\k = \frac{T}{a^{3/2}}$

From the equation above, as the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.

Learn more about orbital period here: brainly.com/question/22247460

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2 years ago

A biologist observes that ocean temperature decreases with increasing depth and concludes that deep sea creatures are superior a

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C or d
because of the passage you can find the answer

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3 years ago