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3 years ago

B. What information did Wegener not have that would have strengthened his argument? (3

Physics

1 answer:

VMariaS [17]3 years ago

4 0

<h2>Movement of Continents</h2>

Explanation:

Alfred Wegener was a German astronomer who proposed the "continental drift" hypothesis in 1910.
Alfred Wegener was not able to explain the movements of the continent in how and in which way they are moved.
He failed in an attempt to explain with the use of tides made the theory undefinable fully.
Also, the major problem with Wegener's theory of Continental Drift was that there was no proper explanation of a mechanism.

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Answer:

0.0002 C.

Explanation:

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at certain times the demand for electric energy is low and electric energy is used to pump water to a reservoir 45 m above the g

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The mass of water that must be raised is $5.25\cdot 10^7 kg$

Explanation:

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$P_{out} = 0.70 P_{in}$

where $P_{in}$ is the power in input.

The power in input can be written as

$P_{in} = \frac{W}{t}$

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The work done in lifting the water is given by

$W=mgh$

where

m is the mass of water

$g=9.8 m/s^2$ is the acceleration of gravity

h = 45 m is the height at which the water is lifted

Combining the three equations together, we get:

$P_{out} = 0.70 \frac{mgh}{t}$

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$P_{out} = 150 MW = 150\cdot 10^6 W$

And solving for m, we find:

$m=\frac{Pt}{0.70gh}=\frac{(1.50\cdot 10^6)(10800)}{(0.70)(9.8)(45)}=5.25\cdot 10^7 kg$

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