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jekas [21]
4 years ago
14

A geologist finds four layers of sedimentary rock. She determines that no geologic events have shifted the layers. She labels th

e layers A, B, C, and D from the top to the bottom.
Which statement about these layers is accurate?
Physics
2 answers:
iragen [17]4 years ago
8 0

Answer: B is older than D.

Explanation: I just took the test.

Harlamova29_29 [7]4 years ago
5 0

Answer:

The correct answer to the following question will be "B is younger than D".

Explanation:

  • In geology as well as important aspects, that stratum seems to be a coating of sedimentary rock, and perhaps igneous rock produced mostly on the planet's surface, including locally compatible features that make anything from other levels or layers.
  • Hardness or structure including its rock to classify the surfaces from which they formed. Usually, the larger and denser the molecules are, the older that rock as well as the deeper its surface it originated from. Toughness could be evaluated using a straightforward fingernail as well as a pocket platform.

So that the above is the right answer.

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What happend to the egg in the fresh water glass?
Molodets [167]

Answer:

Nothing in the fresh water

The egg will be salty in salt water

Mark as brainlist

8 0
3 years ago
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A car travels from A to B at a speed of 40 mph then returns, using the same road, from B to A at a speed of 60 mph. What is the
bezimeni [28]
<h2>Average speed of round trip is 48 mph</h2>

Explanation:

Let the distance from A to B be s.

A car travels from A to B at a speed of 40 mph then returns, using the same road, from B to A at a speed of 60 mph.

\texttt{Time taken to travel from A to B = }\frac{s}{40}\\\\\texttt{Time taken to travel from B to A = }\frac{s}{60}\\\\\texttt{Total time = }\frac{s}{40}+\frac{s}{60}\\\\\texttt{Total time = }\frac{60s+40s}{40\times 60}\\\\\texttt{Total time = }\frac{100s}{2400}\\\\\texttt{Total time = }\frac{s}{24}

Total distance traveled = 2s

Total distance traveled = Average speed x Total time

2s=\texttt{Average speed}\times \frac{s}{24}\\\\\texttt{Average speed = }48mph

Average speed of round trip is 48 mph

8 0
4 years ago
Which of the following is a personal decision that involves science A)It is immoral to cheat on your homework? B)what movie will
Daniel [21]

Answer:

C because air purifier is very essential in dusty homes .

8 0
3 years ago
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Which statement describes the path of electrons from a battery to a circuit?
blondinia [14]

Answer:D

Explanation:

C is wrong

3 0
3 years ago
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a. A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 26.7° and the angle of refracti
Diano4ka-milaya [45]

Answer:

(a). The critical angle for the liquid when surrounded by air is 44.37°

(b). The angle of refraction is 26.17°.

Explanation:

Given that,

Incidence angle = 26.7°

Refraction angle = 18.3°

(a). We need to calculate the refraction of liquid

Using Snell's law

n=\dfrac{\sin i}{\sin r}

Put the value into the formula

n=\dfrac{\sin 26.7}{\sin 18.3}

n=1.43

We need to critical angle for the liquid when surrounded by air

Using formula of critical angle

C=\sin^{-1}(\dfrac{1}{n})

Put the value into the formula

C=\sin^{-1}(\dfrac{1}{1.43})

C=44.37^{\circ}

(b). Given that,

Incidence angle = 37.5°

Speed of light in mineral v=2.17\times10^{8}\ m/s

We need to calculate the index of refraction

Using formula of index of refraction

n=\dfrac{c}{v}

Put the value into the formula

n=\dfrac{3\times10^{8}}{2.17\times10^{8}}

n=1.38

We need to calculate the angle of refraction

Using Snell's law

n=\dfrac{\sin i}{\sin r}

\sin r=\dfrac{\sin i}{n}

Put the value into the formula

\sin r=\dfrac{\sin 37.5}{1.38}

r=\sin^{-1}(\dfrac{\sin 37.5}{1.38})

r=26.17^{\circ}

Hence, (a). The critical angle for the liquid when surrounded by air is 44.37°

(b). The angle of refraction is 26.17°.

3 0
3 years ago
Read 2 more answers
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