what are the 3 properties of components of the universe that can be determined using electromagnetic radiation?

1 answer:

4 0

Your answer is electricity, light and magnetism. They can be determined usinf elecromagnetic radioation.

Even the energy can't be detected by our eyes, there are a lot of measurement instruments that can measure infrared (IR), gamma rays, radio or X-rays or ultraviolet (UV)

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Look at the graph below. Which elements together make up seven percent of the Earth’s crust? calcium and iron calcium and sodium

yaroslaw [1]

The graph is missing, however we can answer anyway.

In fact, this is the approximate percentage of the elements listed in the questions in the Earth's crust (data taken from wikipedia):
Iron 5.0 %
Calcium 3.6 %
Sodium 2.8 %
Potassium 2.6 %
Magnesium 1.5 %

of all of these, we see that the combination of two elements that makes up the closest number to 7% is calcium and sodium (3.6% + 2.8%=6.4%), therefore the correct answer is
Calcium and sodium.

4 0

2 years ago

A state highway was constructed over wetlands. The state obtained a permit to fill the existing wetlands in accordance with the

bixtya [17]

Answer:

Environmental mitigation

Explanation:

Environmental migitation is related environmental industry to describe impacts to the wetland, endangered species, archeological site, paleontological site or historic structure.

This Act mainly focus on action of reducing the severity, seriousness, or painfulness to the environment.

According Clean Water Act in 1972, they agreed to create a another wetland for state highway which was constructed over wetlands.

8 0

3 years ago

Forces of 2 newtons and 3 newtons are acting on an object as shown in the drawing below. Calculate the resultant force in newton

Kipish [7]

Answer:

Hey mate

Your answer will be 5 N Upwards. 

I will explain this to you.

In the attachment we can see that there are two forces acting on the object from the same side. And we know that when force acts from the same direction. Then the total force

=> sum of all the forces in that particular direction.

I hope you got it :)

TheSarcasmic

5 0

3 years ago

Ifa truck starts from rest and it has acceleration of 4 m/s for 5 second

yan [13]

Answer:

Distance 50m

final velocity 20ms^-1

$s = ut + \frac{1}{2} a {t}^{2} \\ = 0 \times t + \frac{1}{2} \times 4 \times {5}^{2} = 50m$

$v = u + at \\ v = 0 + 4 \times 5 \\ v = 20ms^{ - 1}$

6 0

2 years ago

The human circulation system has approximately 1×109 capillary vessels. Each vessel has a diameter of about 8 µm. Assuming cardi

RUDIKE [14]

Answer:

I don't know what you are asking

5 0

3 years ago