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maxonik [38]
3 years ago
5

According to the theory of plate tectonics, what drives the motion of the continents?

Physics
2 answers:
Alex3 years ago
7 0
I’m deciding between E or D.. because for E it’s saying it’s changing ocean currents, but I’m thinking does that mean the earths precipitation or their climate. Best go with E, hope this helps
UkoKoshka [18]3 years ago
4 0

Answer:

B.moving magma in the mantle

Explanation:

The continents have moved over millions of years. This is due to global convection in the earth's mantle. Since new material continuously comes out of the mantle below the oceanic crust. Thus, a force is created that pushes the areas occupied by the continents, displacing them.

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Before sled starts to move it has a potential energy due to the elevation...and then that potential energy converted to kinetic energy due to presence of a velocity...the sled will continue to move if their is no resesive force...but however friction force is presence that cause the sled to stop....

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2 years ago
Lightning is an example of what kind of electricity
ki77a [65]

the answer would be DISCHARGE

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3 years ago
Read 2 more answers
Which particle is most likely to interact with your hand? Select one: a. Alpha particle b. Beta particle c. Gamma particle d. Ne
IgorLugansk [536]

Answer:

The correct option is a

Explanation:

The alpha particle has the lowest penetrating power of the trio of alpha, beta and gamma particles and can be stopped by a sheet of paper and hence cannot penetrate a human skin. Beta particle has a higher penetrating power than alpha particle (some of it penetrates the human skin and some do not) while the gamma particle has the highest penetrating power (with all of it penetrating the human skin).

From the above description, it can be deduced that the alpha particle will stay and interact with the hand (because of its low penetrating power) as the remaining particles move through the skin.

4 0
3 years ago
The balance between incoming solar energy and out going energy radiated into space is called...
marin [14]
Based on the physics principle of conservation of energy, this radiation budget represents the accounting of the balance between incoming radiation, which is almost entirely solar radiation, and outgoing radiation, which is partly reflected solar radiation and partly radiation emitted from the Earth system, including the atmosphere.
5 0
3 years ago
When an excited electron falls from n = 3 to n = 2, a red radiation in the Balmer series emitted. What is the frequency of this
vichka [17]

Answer:

The frequency of this photon is 4.57\times10^{14}\ Hz

(D) is correct option.

Explanation:

Given that,

Excited states,

n=3

n=2

We need to calculate the wavelength

Using formula for energy

E=13.6(\dfrac{1}{n^2}-\dfrac{1}{m^2})

E=13.6(\dfrac{1}{4}-\dfrac{1}{9})

E=1.888\ eV

E=1.888\times1.6\times10^{-19}\ J

E=3.0208\times10^{-19}\ J

We need to calculate the frequency

Using formula of frequency

E=hf

f=\dfrac{E}{h}

Where, E =energy

f=\dfrac{3.0208\times10^{-19}}{6.63\times10^{-34}}

f=4.57\times10^{14}\ Hz

Hence, The frequency of this photon is 4.57\times10^{14}\ Hz

4 0
2 years ago
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