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sweet [91]
3 years ago
12

Changing the wavelength of the carrier wave to match that of the signal is called

Chemistry
1 answer:
WINSTONCH [101]3 years ago
3 0
The answer is C. When you change the carrier wave you change the pitch/frequency of a wavelength
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A Mole of elephants would weigh how much more than the moon? I got 6.301x10^23 and set the problem up like this: 6.022x10^23 x 2
Margaret [11]

Answer:

The Moon weighs about 7.349*10^22 kg

How much does “an elephant” weigh? Grown-up elephants vary between 1.7 tons (small wood elephant cow) and 6 tons (big African elephant bull). Let us pick 2.720 tons or 2720 kg as an average weigh one, this is valid for Asian elephants.

A mole of elephants weighs 6.022 * 10^23 x 2720 kg = 1.638 * 10^27 kg.

That is 1,638 * 10^27 / 7,349*10^22 = 22289 times more.

5 0
3 years ago
What two elements are the least abundant by volume in the crust
emmainna [20.7K]

Answer:

potassium and magnesium

8 0
2 years ago
True or false solubility tells u how fast a solute will dissolve?
Nina [5.8K]
Solubility <span>is a measurement that describes how much solute dissolves in a given amount of solvent</span>                                    
4 0
3 years ago
Relacione el punto de ebullición del agua y la acetona (propanona), con la facilidad de a evaporación de estas sustancias (volat
Elden [556K]

Answer:

Here's what I get  

Explanation:

1. Water

The O-H bond in water is highly polar.

It has about one-third ionic character.

The partially-positive H atoms and partially negative O atoms strongly attract each other  by hydrogen bonds.

It takes a large amount of energy to separate the water molecules from each other.

Thus, the boiling point of water is relatively high (100 °C).

2. Acetone

The C=O bond in acetone is much less polar.

It is less than 20 % ionic.

The dipole-dipole attractions in acetone are much weaker than the hydrogen bonds in water.

It takes much less energy to separate the acetone molecules from each other.

Thus, even though the molar mass of acetone is more than three times that of water, the boiling point of acetone is only 56 °C.

4 0
3 years ago
A gas occupies a volume of 0.7 L at 10.1 kPa. What volume will the gas occupy at 101 kPa?
Nataly [62]

Answer:

7L

Explanation:

Divide 101 by 10.1(kPa) and you get 10.

10 x .7 = 7

4 0
2 years ago
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