3 years ago

What happens when magnesium reacts with fluorine

Physics

1 answer:

slamgirl [31]3 years ago

3 0

It creates a white crystal salt MgF2

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On what evidence do you accept the statement,"Aboslute zero is at -273."

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Two charges q1 and q2 exert a 90 N electrostatic force onto each other when they are 1 m apart. They are moved further away to a

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Consider a metal single crystal oriented such that the normal to the slip plane and the slip direction are at angles of 60 and 3

Scilla [17]

Explanation:

Given that,

Angle by the normal to the slip α= 60°

Angle by the slip direction with the tensile axis β= 35°

Shear stress = 6.2 MPa

Applied stress = 12 MPa

We need to calculate the shear stress applied at the slip plane

Using formula of shear stress

$\tau=\sigma\cos\alpha\cos\beta$

Put the value into the formula

$\tau=12\cos60\times\cos35$

$\tau=4.91\ MPa$

Since, the shear stress applied at the slip plane is less than the critical resolved shear stress

So, The crystal will not yield.

Now, We need to calculate the applied stress necessary for the crystal to yield

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$\sigma=\dfrac{\tau_{c}}{\cos\alpha\cos\beta}$

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$\sigma=\dfrac{6.2}{\cos60\cos35}$

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3 years ago

What is -8,675,309.0 in scientific notation

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(scientific notation)

= 3.456e11
(scientific e notation)

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3 years ago

Two motorcycles are traveling in opposite directions at the same speed when one of the cyclists blasts her horn, which has frequ

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Answer:

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Explanation:

Given that the frequency difference is

( 563- 544) = 19

So alsoThe wavelength of each wave is = v/f = 344 /544

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So it is assumed that each motorcycle has moved 0.5 of this distance

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3 years ago