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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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Match each chemical name with the correct chemical formula.

pochemuha

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3 years ago

gayle cooks a roast in her microwave oven. the klystron tube in the oven emits photons whose energy is 1.20 x 10^-3 ev. what are

AveGali [126]

Answer:

$\lambda=1.03\times 10^{-3}\ m$

Explanation:

Given that,

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$\lambda=\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{1.92\times 10^{-22}}\\\\\lambda=1.03\times 10^{-3}\ m$

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3 years ago

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3 years ago

A ball is thrown against a wall and bounces back toward the thrower with the same speed as it had before hitting the wall. Does

lorasvet [3.4K]

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3 years ago

A 0.600 kg block is attached to a spring with spring constant 15 N/m. While the block is sitting at rest, a student hits it with

gulaghasi [49]

Answer:

8.8 cm

31.422 cm/s

Explanation:

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v = Velocity of block

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As the energy of the system is conserved we have

$\dfrac{1}{2}mv^2=\dfrac{1}{2}kA^2\\\Rightarrow A=\sqrt{\dfrac{mv^2}{k}}\\\Rightarrow A=\sqrt{\dfrac{0.6\times 0.44^2}{15}}\\\Rightarrow A=0.088\ m\\\Rightarrow A=8.8\ cm$

Amplitude of the oscillations is 8.8 cm

At x = 0.7 A

Again, as the energy of the system is conserved we have

$\dfrac{1}{2}kA^2=\dfrac{1}{2}mv^2+\dfrac{1}{2}kx^2\\\Rightarrow v=\sqrt{\dfrac{k(A^2-x^2)}{m}}\\\Rightarrow v=\sqrt{\dfrac{15(0.088^2-(0.7\times 0.088)^2)}{0.6}}\\\Rightarrow v=0.31422\ m/s$

The block's speed is 31.422 cm/s

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3 years ago