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gregori [183]
3 years ago
8

Which example is a body fossil? a) dino bones b) shrimp burrow c)dino footprint d)an ornithopod track

Physics
2 answers:
Harrizon [31]3 years ago
7 0

Answer:

The hard structure like dino bones, teeth and shells are the examples of body fossils.

Option: A

<u>Explanation: </u>

The body fossils are common type of fossils found in the world. <em>These body fossils are formed by the remains of the ‘dead animals and plants’.</em> The body fossils are <em>hard parts of the dino teeth, bones, shells, woody trunks, branches, and stems.</em> The body fossils are formed in different ways and they are the remains of <em>the body parts of ancient animals, plants and other life forms.</em>

<em>They are rarely found in connected nature and are like large vertebrates like dinosaur bones, skulls and teeth’s. </em> The body fossils are also formed in different ways they are formed like a plants or animals dies in a watery environment and they can be buried in mud or silt they cannot decompose.

They build the top and hardens into the rocks at over time sedimentation.  Two types of tissues are decomposed, they are soft and hard tissues.in the decomposition of there leaving hard bones, shells and teeth’s are behind and soft tissues are quickly decomposes.

AleksAgata [21]3 years ago
7 0

Answer:

B: A shrimp burrow

Explanation:

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The accompanying table shows measurements of the Hall voltage and corresponding magnetic field for a probe used to measure magne
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0.125 mm . is the thickness of the sample.

<h3>What do you mean by hall voltage ?</h3>

The Hall effect is the creation of a voltage difference (the Hall voltage) across an electrical conductor, which is transverse to an applied magnetic field perpendicular to the current and an electric current in the conductor. Edwin Hall made the discovery in 1879.

We need to know the material's current, magnetic field, length, number of charge carriers, and area in order to calculate the Hall voltage. The Hall voltage is computed using the formula: v=IBlneA=(100A)(1.5T)(1.0102m)(5.91028/m3)(1.61019C)(2.0105m2)=7.9106V.

lof4

First we have to plot those point Then we can use some computer program to fit those point linearly to get slope

of that graph a and interception b. We already know, from theory, that Hall's voltage AVH and magnitude of

magnetic field B are connected as

ΔV_{H} =\frac{I}{nqt} B

where I is current trough probe, n is concentration of charge carriers, q = 1.6 • 10¯19 C is charge of charge

carries and t is thickness of the material. We have put the data from the problem on a graph and fitted linearly and

got

a = 100 μ\frac{V}{T}

b = —0.02  μV.

As we can see, our result are in agreement with theoretical assumptions because interception b is almost O, and a

is asked relation between Hall's voltage A VH and magnitude of magnetic field B. Then we can write

ΔVH =100X10^{-6} V/TB

(4) Then we can use result (4) and numbers from the textbook to calculate the thickness of the sample as

a=\frac{I}{nqt} \\t=\frac{I}{anq} \\t=\frac{.200A}{100X10^{-6}X 1.6 X10^{-19}X10^{26}  } \\t=0.125mm

To learn more about the hall voltage , Visit: brainly.com/question/19130911

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Can anyone help?6th question.free brainliest answer...
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There's a crest and a trough in each complete wave.  So the question is describing 10 complete waves.

After that, the question becomes somewhat murky.  It goes on to say "its time period is 0.2 seconds".  

-- The "time period" of a wave is usually defined as the time for <u><em>one</em></u> complete wave.  If that's what the phrase means, then ...

Frequency = ( 1/0.2sec )

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<em>= = = = = = = = = =</em>

<u>BUT</u> ... Is the question awkwardly trying to tell us that the <u><em>10 waves</em></u> take 0.2 seconds ?  If that's what it's saying, then ...

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