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3 years ago

Help please! Which of earth's layers is responsible for creating the earth's magnetic field?

Chemistry

2 answers:

vesna_86 [32]3 years ago

8 0

Answer:

The outer core.

Explanation:

There is liquid metal, like iron, which creates electric currents going through the ground. When the Earth rotates on it's axis, it creates a magnetic field.

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KatRina [158]3 years ago

7 0

Answer:

inner core

Explanation:

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List and describe the four layers of the Earth.

ella [17]

Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust

4 0

3 years ago

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Helium is the lightest noble gas and the second most abundant element (after hydrogen) in the universe. The mass of a helium−4 a

dmitriy555 [2]

<u>Answer:</u> The fraction of atom's mass contributed by nucleus is 0.99

<u>Explanation:</u>

Nucleons are defined as the sub-atomic particles which are present in the nucleus of an atom. Nucleons are protons and neutrons.

The isotopic symbol of Helium-4 atom is $_2^4\textrm{He}$

Number of electrons = 2

Number of protons = 2

Number of neutrons = 4 - 2 = 2

We are given:

Mass of He-4 atom = $6.64648\times 10^{-24}g$

Mass of 1 electron = $9.10939\times 10^{-28}g$

Calculating the mass contributed by the nucleus = $m_{He}-2(m_e)$

Mass of the nucleus of He-4 atom = $6.64648\times 10^{-24}-(2\times (9.10939\times 10^{-28}))=(6.64648-0.0018219)\times 10^{-24}=6.64466\times 10^{-24}$

To calculate the fraction of atom's mass contributed by the nucleus, we use the equation:

$\text{Fraction of atom's mass contributed by nucleus}=\frac{\text{Mass of nucleus}}{\text{Mass of atom}}$

Putting values in above equation, we get:

$\text{Fraction of atom's mass contributed by nucleus}=\frac{6.64466\times 10^{-24}g}{6.64648\times 10^{-24}g}=0.99$

Hence, the fraction of atom's mass contributed by nucleus is 0.99

8 0

3 years ago

What is the product(s) of the reaction below?

Lesechka [4]

Answer:

is b

Explanation:

es la b porque estpy estudiando lo mismo

7 0

3 years ago

How many ligaments in e kne

Makovka662 [10]

4.
Medial collateral ligament, which runs along inside of the knee.
Lateral collateral ligament, which runs along the outside of the knee.
Ligament, which runs in the middle part of the knee.
Posterior cruciate ligament, which works together with the Anterior cruciate ligament.

7 0

3 years ago

You have 500,000 atoms of a radioactive substance. After 2 half-lives have past, how many atoms remain?

Aleonysh [2.5K]

Answer:

125000

Explanation:

Because it is halved and halved again.

3 0

2 years ago

Read 2 more answers