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3 years ago

The arctic tundra can be found in _______. a. Greenland b. Canada c. The United States d. all of the above

Physics

2 answers:

dangina [55]3 years ago

7 0

The artic tundra can be found in D. All of the above.

Juli2301 [7.4K]3 years ago

3 0

Answer: b. Canada

Artic tundra is found across the northern Alaska, Canada and Siberia. These biomes are coolest biomes in the world. The artic tundra exhibit long cool winters and short cool summers. The artic tundra receives low rainfall and dry winds. The climatic conditions are responsible for desert like features of these biomes. Simple vegetations and low biodiversity are features of the artic tundra.

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You can obtain a rough estimate of the size of a molecule by the following simple experiment. Let a droplet of oil spread out on

Marat540 [252]

Answer:

The diameter of the molecule of oil is $1.405 10 ^{-9} \ m$

Explanation:

We define density as

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

So, the volume for our oil will be

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

$volume = \frac{7.62 \ 10^{-7} \ kg}{ 912 \ \frac{kg}{m^3} }$

$volume = 8.355 \ 10 ^{-10} \ m^3$

the volume for a cylinder with radius r and height h is

$volume = \pi r^2 h$

So, we can obtain the height of the droplet of oil as:

$h = \frac{volume}{\pi r^2}$

the radius is

$r=43.5 \ cm = 0.435 \ m$

$h = 1.405 10 ^{-9} \ m^3$

And this is the diameter of the oil molecule.

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3 years ago

How can an object overcome static friction?

larisa86 [58]

Answer:

Applying enough force in one direction to move the object, making kinetic energy.

Explanation:

Simpleness

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Setler79 [48]

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iris [78.8K]

The answer is A, True.

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