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max2010maxim [7]
3 years ago
8

What is the process of change in a crust due to the motion of hot material underneath?(answer)?

Physics
1 answer:
frutty [35]3 years ago
5 0
Im not exactly sure but I think the answer is techtonic plates collide
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If the current density in a wire or radius R is given by J-k+5,0F wire? R, what is the current in the wire?
Deffense [45]

Answer:

I = R^{2}(K+5)

Explanation:

Given :

J = k+5

Now selecting a thin ring in the wire of radius "r" and thickness dr.

Current through the thin ring is

dI = J X 2πrdr

dI = (K+5) x 2πrdr

Now integrating we get

I = \int_{0}^{R} = (K+5).2\pi rdr

I = (K+5) 2π\int_{0}^{R} rdr

I = (K+5) 2π \frac{R^{2}}{2}

I = R^{2}(K+5)

8 0
3 years ago
Summarize what you learned this week about the electromagnetic spectrum
svetoff [14.1K]

Answer:

I only really know the "How do we use these EM waves in our lives?" part srry

Explanation:

EM waves are used to make sure you cellphone, radio, TV, and etc. have service/ connection.

8 0
3 years ago
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How many electrons will a single atom of sulfur with no charge and no bonds have in its valence shell?
Svet_ta [14]

Answer:

There are 6 electrons in the outermost shell.

Explanation:

Sulphur is a non-mettalic element which is in the period 3 and group .6on the periodic table. It has an atomic number of 16 and a Mass number of 32. Atomic number tells you the number of electrons in an electrically neutral atom. It has the electronic configuration of 1s2 2s2 2p6 3s2 3p4.

The orbitals have a formula 2n^2 where n = 0, 1, 2, 3 etc.

In the shells, n = 1 so there are 2 electrons. For n = 2, 2*(2)^2 = 8 electrons. So, 16 - (8 + 2) = 6 electrons in the 3 shell (outermost shell)

Therefore from the electronic confriguration above, there are 6 electrons in the outermost shell.

6 0
3 years ago
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What happens to an object's mass as the object's acceleration increases but the force stays the same
Iteru [2.4K]

Answer:

the mass stays the same

Explanation:

the more mass the faster

6 0
3 years ago
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What is a similarity between heat energy and light energy?
lesantik [10]

Number two because the sun emits heat in the form of light to earth

5 0
2 years ago
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