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1 year ago

Why is electromagnetic radiation a transverse wave?

1 answer:

6 0

Since the direction of particle displacement in electromagnetic waves is also perpendicular to the direction of motion, generating the waveform of visible light and other forms of electromagnetic radiation, they are also transverse waves.

In a transverse wave, the displacement is perpendicular to the direction of motion (at an angle of 90 degrees Celsius). The direction of displacement (up and down) in the case of the ocean wave is perpendicular to the direction of wave motion (horizontally along the water), making it a transverse wave.

How far a particle has moved from its original starting position, or, in the case of an ocean wave, how high or low the water is, is measured by its displacement or amplitude.

learn more about displacement here;

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On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15

MrMuchimi

Answer:

5400 cans

Explanation:

First we convert the total weight, 1 ton, to grams:

$1ton=1x10^{6}g$

Now we need to know the mass of aluminum:

$m_{Al}=\frac{10^{6}*8.1}{100} =81000g$

Now we make the relation between the mass of aluminum in 1 ton of the earth's crust and the mass of aluminum per can:

$n=\frac{81000g}{15g/can} =5400cans$

8 0

4 years ago

the most common isotope of chromium has a mass number of 52. which notation represent a different isotope of chromium?

Aliun [14]

Not quite sure what your question is asking. Chromium-52, the most common isotope. Among lesser common isotopes there could be Chromium-53, Chromium-56, etc. I would have to look specifically at what exists. The percent abundance in the universe multiplied by each of these mass numbers and added determines the atomic mass number a displayed on the periodic table.

4 0

3 years ago

How many total atoms are in 5C3

GuDViN [60]

Answer:

There are 15 total Carbon Atoms

there are 5 groups of 3

5(C3)

5x3 = 15

5 0

3 years ago

Given the following list of densities, which materials would float in a molten vat of lead provided that they do not themselves

vampirchik [111]

Answer:

b. glass and charcoal

Explanation:

Step 1: Given data

Density of Pb: 11.4 g/mL

Density of Glass: 2.6 g/mL

Density of Au: 19.3 g/mL

Density of charcoal: 0.57 g/mL

Density of platinum: 21.4 g/mL

Step 2: Determine which material will float in molten lead

Density is an intrinsic property of matter. Less dense materials float in more dense materials. The materials whose density is lower than that of lead and will therefore float on it are glass and charcoal.

8 0

3 years ago

If the mass of a block of wood is 4.6g and the density is 0.98g/mL what is the volume.

irina [24]

Answer:

The answer is

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

$volume = \frac{mass}{density} \\$

From the question

mass of wood = 4.6 g

density = 0.98 g/mL

It's volume is

$volume = \frac{4.6}{0.98} \\ = 4.69387755...$

We have the final answer as

Hope this helps you

3 0

4 years ago