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3 years ago

What is the primary function of earth's atmosphere (1 point)?

1 answer:

5 0

<span>Without the atmosphere that protects the Earth, humans, animals and all plant life would not be able to survive. The atmosphere works to hold oxygen in the area around the earth. Humans and most animals are dependent on oxygen. Plants are also dependent on oxygen because they take the leftover carbon dioxide from humans when they inhale the oxygen.</span>

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What must happen to the electrons in a material to create an electric current?

zhenek [66]

You have to have electrons that are in the materials conduction band. Then you apply a voltage across the material.

8 0

4 years ago

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The question ask:

abruzzese [7]

Answer:

$\theta=28.07^{\circ}$

Explanation:

Speed of van, v = 28 m/s

Radius of unbanked curve, r = 150 m

Let $\theta$ is the angle with the vertical. In case of banking of road,

$T\ cos\theta=mg$ .............(1)

And

$T\ sin\theta=\dfrac{mv^2}{r}$ ..........(2)

From equation (1) and (2) :

$tan\theta=\dfrac{v^2}{rg}$

$tan\theta=\dfrac{(28)^2}{150\times 9.8}$

$\theta=28.07^{\circ}$

So, the string makes an angle of 28.07 degrees with the vertical. Hence, this is the required solution.

4 0

3 years ago

Help me please, help

Alisiya [41]

Answer:

455,000 Pa

Explanation:

PV = nRT

If n is constant:

PV / T = PV / T

(101,325 Pa) (718 mL) / (273 K) = P (175 mL) / (26 + 273) K

P = 455,000 Pa

6 0

4 years ago

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What would happen if you try to put two balloons with the same charge together

ivanzaharov [21]

Answer:

they would repel because they have the same charge. Charges that are different will stick together.

3 0

3 years ago

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Located adjacent to red on the electromagnetic spectrum, and having a longer wavelength, is ________ radiation, which we cannot

Kaylis [27]

Answer:

infrared radiation

Explanation:

infrared radiation - infrared radiation is part of electromagnetic radiation which wavelength range from about 700 nano meters (nm) to 1 millimeter (mm).

Infrared radiation is invisible to naked eye, however it can be felt as heat for longer duration infrared waves. Any type of radiation — whether it is visible light or radio waves — may possibly be hazardous if extremely focused in a high-powered narrow beam

4 0

4 years ago