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Studentka2010 [4]

3 years ago

5

What is in fire works

1 answer:

Sonbull [250]3 years ago

7 0

Traditionally, gunpowder used in fireworks was made of 75 percent potassium nitrate also called saltpeter mixed with 15 percent charcoal and 10 percent sulfur; modern fireworks sometimes use other mixtures (such as sulfurless powder with extra potassium nitrate) or other chemicals instead

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Determine the expected diffraction angle for the first-order diffraction from the (111) set of planes for FCC nickel (Ni) when m

faust18 [17]

Answer:

56°

Explanation:

First calculate $a:$

$a=2 R \sqrt{2}=2(0.1246) \sqrt{2}=0.352 \mathrm{nm}$

The interplanar spacing can be calculated from:

$d_{111}=\frac{a}{\sqrt{1^{2}+1^{2}+1^{2}}}=\frac{0.352}{\sqrt{3}}=0.203 \mathrm{nm}$

The diffraction angle is determined from:

$\sin \theta=\frac{n \lambda}{2 d_{111}}=\frac{1(0.1927)}{2(0.2035)}=0.476$

Solve for $\theta$

$\theta=\sin ^{-1}(0.476)=28^{\circ}$

The diffraction angle is:

$2 \theta=2\left(28^{\circ}\right)=56^{\circ}$

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3 years ago

Instead of developing embryo inside the egg, the embryo grows and develops inside the mother's womb until the baby is born. This

ra1l [238]

Answer:

mammal

Explanation:

mammals are the types of animals who dont have eggs

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Does entropy increase or decrease in the following processes?

DaniilM [7]

Where are the following answers?

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A substance that loses electron and itself is oxidized is called a?

Verdich [7]

Answer:

oxidation-reduction or redox reaction

Explanation:

n

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Pressure buildup in ur ear

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