2 years ago

Turquoise is what types of rocks sedimentary, metamorphic or igneous

Physics

1 answer:

Step2247 [10]2 years ago

3 0

Turquoise is in metamorphic and sedimentary rocks. Hope that helped

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The bottom of cooking utensils are often kept black. Give reason

stepan [7]

Answer:

absorb more heat and get heated quickly

Explanation:

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2 years ago

Compare 2,500 centimeters to 25 decimeters. How do each of these values compare to a meter, and which represents a longer length

Rom4ik [11]

2500 centimeters is 25 meters. 25 decimeters is 2.5 meters. 2500 centimeters is 10 times longer than 25 decimeters.

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2 years ago

The temp of the metal in a running car engine is 388 K. Find this temp in Celsius.

Korvikt [17]

Answer:

115°c

Explanation:

°c=k-273

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2 years ago

An electron is confined to a one dimensional infinite potential well 150 pm. How much energy must it absorb if it is to jump to

igor_vitrenko [27]

Answer:

\Delta E=1.22\times 10^{-22}J

Explanation:

The energy of electron in any state is given by $E=\frac{n^2h^2}{8mL^2}$ here h is planck's constant n is state of electron L is the infinte potential well m is the mass of electron

We know that $h=6.67\times 10^{-34}$

Potential well dimension = $150pm=150\times 10^{-12}m$

Mass of electron $=9.1\times 10^{-31}kg$

So energy required to electron to jump from ground state to 3rd state

$\Delta E=\frac{h^2}{8mL^2}\left ( 3^2-1^2 \right )$

$\Delta E=\frac{\left ( 6.67\times 10^{-34} \right )^2}{8\times 9.1\times 10^{-31}(150\times 10^{-12})^2}\left ( 9-1 \right )$

$\Delta E=1.22\times 10^{-22}J$

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2 years ago

How does the theory of plate tectonics support the theory of seafood spreading?

Zanzabum

When two tectonic plates move in opposite directions, it causes magma to rise, creating a new seafloor.

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2 years ago