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allsm [11]
3 years ago
13

The water table is the

Physics
1 answer:
Nikitich [7]3 years ago
4 0

When You Look Up This Question

This Is What You Get

<u>"</u>The Water Table<u> is the upper surface of the zone of saturation. ..."</u>

But thats incorrect

That Rules Out B

Now My Answer Choices Are Slightly Different.

A. The Boundary Line Between The Zone Of Saturation And The Zone Of Aeration

B. The Boundary Between Layers Of Permeable And Impermeable Rock

C. The Upper Limit Of The Zone Of Aeration

D. Both A And C

<h2>Process Of Elimination</h2>

We Know That A Is Incorrect. (B For Your Choices Above)

So We Can Rule Out @ Wrong Answers Just Right There.

\left[\begin{array}{ccc}A&INCORRECT\\B\\C\\D&INCORRECT\end{array}\right]

That Leaves Us 2 Choices Left

B. The Boundary Between Layers Of Permeable And Impermeable Rock

C. The Upper Limit Of The Zone Of Aeration

Looking Up <u>"Zone Of Aeration"</u> You'll Find

<u>"That it is the region between the earth's surface and the water table. The main components of this region are the soil and rocks. ... "</u>

So For Your Answer Choices You Have

\left[\begin{array}{ccc}A&INCORRECT\\B&INCORRECT\\C\\D\end{array}\right]

Leaving You 2 Choices Left

B. lower boundary of the zone of saturation.

D. aquifer

Looking Up <u>"Permeable And Impermeable Rock"</u> You'll Find

<u>"Permeable surfaces allow water to percolate into the soil to filter out pollutants and recharge the water table. ..."</u>

<u>"Impermeable surfaces are solid surfaces that don't allow water to penetrate, forcing it to run off. ..."</u>

Actually Now Thinking About It Aquifer Is Part Of These Definitions.

<em>You See A Body Of Permeable Rock Which Can Contain Or Transmit Ground Water Is Called,</em> <u>"Aquifer. ..."</u>

We Have That In-Common But With Different Answer Choices?

So My B Is Like Your D.

The Others Are In-Conclusive

So Out Of Your Answers Choices It's

\left[\begin{array}{ccc}A\\B\\C\\D&AQUIFER&CORRECT\end{array}\right]

And For My Answer Choices It's

\left[\begin{array}{ccc}A\\B&CORRECT\\C\\D\end{array}\right] Permeable /And/Impermeable Rock

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A 100g block lies on an inclined plane that makes an angle of 15 degrees with the horizontal. The coefficient of kinetic frictio
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Answer:

Mass that one should put in the container so that the 100 g block slides down the inclined plane at constant speed = 34.16 g

Explanation:

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And sum of upward forces = sum of downward forces.

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N = (0.1×9.8×cos 15°) = 0.946582 N

The horizontal forces (With respect to the inclined plane) include the frictional force (acting upwards for the inclined plane, opposite to the intended direction of motion), the Tension in the rope (acting downwards, away from the 100 g block) and the horizontal component (with respect to the inclined plane) of the weight of the block, F, (also acting downards).

For the body to slide down the inclined plane at constant speed, the downward sloping forces must balance the frictional force, that is, there will be no acceleration.

Frictional force = Tension + F

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where μ = coefficient of kinetic friction = 0.60

N = normal reaction = 0.9466 N

Frictional force = Fr = (0.60 × 0.9466) = 0.56796 N = 0.568 N

The horizontal component (with respect to the inclined plane) of the weight of the block (also acting downards) = mg sin θ

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Tension in the rope = T = ?

Fr = F + T

T = Fr - F = 0.568 - 0.253624 = 0.314376 N = 0.3144 N

But the balance on the rope now has the total weight on the container (weight of container + weight on the container) to be equal to 2T.

2T = mg

2 × 0.3144 = 9.8m

m = 0.06416 kg = 64.16 g.

Mass of the container = 30 g

So, mass that one should put in the container so that the 100 g block slides down the inclined plane at constant speed = 64.16 - 30 = 34.16 g

Hope this Helps!!!

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