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Harlamova29_29 [7]
3 years ago
15

A student made a model of isostasy by placing a block of wood in a beaker of water. What does the water in the beaker represent

in the model? A.A glacier B.Earth's crust C.Earth's mantle D.A rebound
Physics
2 answers:
Setler [38]3 years ago
6 0
The answer is C. the earths mantle because the wood in this case is the surface
Stells [14]3 years ago
5 0

Answer:

C. Earth's mantle.

Explanation:

Isostasy is a Greek word which means equal and standstill. In the theory of Isostasy its has been assumed that Earth's crust is floating over the earth's mantle and the flotation of crust at an elevation over mantle depends upon thickness and density of crust. In the whole scenario gravitational equilibrium should be maintained.

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We are asked to solve and determine the magnitude of the current flowing through the first device. In order for us to have a better understanding of the problem, we can refer to the attached picture which contains electric circuit diagram. Since it the problem we are already given with an electromotive source or the voltage supply and since the two resistance is in parallel, it would clearly mean that the voltage drop in each resistance is just the same. The resistance 1 uses the 40 volts at the same time the resistance 2 uses 40 volts also. Solving further for the current, we can apply Ohm's law which V = IR where "V" represents the voltage, the "I" represents the current and "R" represents the resistance.

Such as the solution in obtaining current is shown below:
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Answer:

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Explanation:

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