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2 years ago

What are the animal life like in the tundra

Physics

2 answers:

Natali [406]2 years ago

7 0

a little bit bad

Explanation:

tundra is one of the most harshest Biomes and it is definitely the coldest

beks73 [17]2 years ago

5 0

The tundra is one of the coldest biomes so I would say that the animals have to be adapted. Maybe fur coats‍♀️they have to be warm and they also need food..I dunno I would think about how they live within the biome—(I added a picture of a tundra Biome)

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A person of mass 70 kg stands at the center of a rotating merry-go-round platform of radius 2.9 m and moment of inertia 900 kg⋅m

Cloud [144]

Explanation:

It is given that,

Mass of person, m = 70 kg

Radius of merry go round, r = 2.9 m

The moment of inertia, $I_1=900\ kg.m^2$

Initial angular velocity of the platform, $\omega=0.95\ rad/s$

Part A,

Let $\omega_2$ is the angular velocity when the person reaches the edge. We need to find it. It can be calculated using the conservation of angular momentum as :

$I_1\omega_1=I_2\omega_2$

Here, $I_2=I_1+mr^2$

$I_1\omega_1=(I_1+mr^2)\omega_2$

$900\times 0.95=(900+70\times (2.9)^2)\omega_2$

Solving the above equation, we get the value as :

$\omega_2=0.574\ rad/s$

Part B,

The initial rotational kinetic energy is given by :

$k_i=\dfrac{1}{2}I_1\omega_1^2$

$k_i=\dfrac{1}{2}\times 900\times (0.95)^2$

$k_i=406.12\ rad/s$

The final rotational kinetic energy is given by :

$k_f=\dfrac{1}{2}(I_1+mr^2)\omega_1^2$

$k_f=\dfrac{1}{2}\times (900+70\times (2.9)^2)(0.574)^2$

$k_f=245.24\ rad/s$

Hence, this is the required solution.

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2 years ago

Select the correct answer.

VLD [36.1K]

Answer:O – H

Explanation:

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2 years ago

The acceleration due to gravity is higher on juniper Than on earth. The mass and weight of rock on juniper compared to that on e

soldier1979 [14.2K]

Answer:

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Explanation:

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Hope this helps.

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2 years ago

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blsea [12.9K]

Answer:

yes it is

Explanation:

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4 0

2 years ago

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