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4 years ago

If you change the temperature of a gas but keep the volume the same, how does the pressure change?

1 answer:

8 0

If the temperature increases the pressure increases. If the temperature decreases the pressure decreases I hope this helped

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An electromagnetic wave has a wavelength of 0.12 meters. what is that in nanometers?

tino4ka555 [31]

Answer:

1.2 × 10⁸ m

Explanation:

You want to convert metres to nanometres.

Recall that the multiplying prefix nano- means × 10⁻⁹, so

1 nm = 1 × 10⁻⁹ m

The conversion factor is either $\frac{\text{1 nm} }{10^{-9} \text{m}}$ or $\frac{10^{-9} \text{m} }{\text{1 nm}}$ .

You choose the one that has the desired units (nm) on top. Then

$\lambda = \text{0.12 m} \times \frac{\text{1 nm} }{10^{-9} \text{m}} = 1.2 \times 10^{8} \text{ nm}$

7 0

3 years ago

What are the names of the following compounds: FeCl HNO NaSO SO

Inessa05 [86]

Answer:

FeCl: Ferric Chloride (also called iron chloride), comes from Fe (ferrum, or iron), and Cl (Chlorine)

HNO: Nitroxyl, from N (Nitrogen), and the acidic nature of a radical ending in -yl.

NaSO: Sodium sulfate, Na (Sodium), S (Sulfur), O (Oxygen).

SO: Sulfur monoxide (Mono-One), O (Oxygen) and S (Sulfur).

6 0

4 years ago

Is the total disappearance of all members of a species.

OLga [1]

Answer: EXTINCTION

Explanation:

4 0

3 years ago

Is matter and mass always the same

Anna11 [10]

Matter is a slightly archaic word for something with mass, as in the conservation of matter (which must be paired with the conservation of energy to still hold true. Mass can be converted back and forth between energy, so therefore so can matter. Of course relativistic mass is conserved as it's a function of the energy of an object in that reference frame.

6 0

4 years ago

Read 2 more answers

A material has an ASTM grain size number of 7. Determine the magnification, if the number of grains per square inch observed is:

Luden [163]

Answer:

A) M = 100X

B) M = 36X

C) M = 178.88X

Explanation:

Given data:

ASTM grain size number 7

a) total grain per inch^2 - 64 grain/inch^2

we know that number of grain per square inch is given as

$Nm = 2^{n-1} (\frac{100}{M})^2$

where M is magnification, n is grain size

therefore we have

$64 = 2^{7-1}(\frac{100}{M})^2$

solving for M we get

M = 100 X

B) total grain per inch^2 = 500 grain/inch^2

we know that number of grain per square inch is given as

$Nm = 2^{n-1} (\frac{100}{M})^2$

where M is magnification, n is grain size

therefore we have $500 = 2^{7-1}(\frac{100}{M})^2$

solving for M we get

M = 36 X

C) Total grain per inch^2 = 20 grain/inch^2

we know that number of grain per square inch is given as

$Nm = 2^{n-1} (\frac{100}{M})^2$

where M is magnification, n is grain size

therefore we have $20 = 2^{7-1}(\frac{100}{M})^2$

solving for M we get

M = 178.88 X

8 0

3 years ago