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Mariana [72]
3 years ago
14

What happens in a global convection cell

Physics
2 answers:
lianna [129]3 years ago
5 0

Answer:

Earth's convection cells and how winds curve due to the Coriolis effect. currents of air or water due to Earth's rotation. Convection also occurs on a global scale. Warm, less-dense air at the equator tends to rise and flow toward the poles.

Explanation:

Varvara68 [4.7K]3 years ago
3 0

Answer:

The wind pattern that occurs in the atmosphere of the earth over a large scale refers to the convection cells. The water in the equatorial region receives a maximum amount of sunlight, as a result of which it becomes warm and less dense. This lighter is then rises up forming a low-pressure one and starts moving towards the poles in both the hemispheres. These lighter air mass then cools down as it reaches the poles and eventually gets denser and sinks down. This dense cold water further flows back to the equator moving at the seafloor.

During its motion from the equator to the poles, the air gets deflected due to a force that generates because of the earth's rotation. This force is known as the Coriolis force. This causes the wind to flow in a clockwise manner in the northern hemisphere, and anticlockwise in the southern hemisphere.

Due to this motion of wind and the effect of Coriolis force, the low-pressure zones are formed at the equator and the Arctic and Antarctic circles, whereas the high-pressure zones are formed at the near-tropical region and the poles.

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A car traveling 20 m/s to the north collides with a car traveling 10 m/s to the
sergiy2304 [10]

Answer: C

Explanation:

In collision, whether elastic or inelastic collisions, momentum is always conserved. That is, the momentum before collision will be equal to the momentum after collision.

Change in momentum of the system will be momentum after collision minus total momentum before collision.

Since momentum is a vector quantity, the direction will also be considered.

Momentum = MV - mU

Let

M = 800 kg is going north

at V = 20 m/s and the other car

m= 800 kg is going south

at U = 10m/s.

Substitute all the parameters into the formula

Momentum = (800 × 20) - (800 × 10)

= 8000 kgm/s

The final momentum after collision will also be equal to 8000 kgm/s

Change in momentum = 8000 - 8000

Change in momentum = 0

5 0
3 years ago
Read 2 more answers
If you have 4 kg of a sample with density of 1 897 g/ml what is the volume
Kaylis [27]
We know, Volume = Mass / Density
Here, mass = 4 Kg = 4000 g
d = 1,897 g/ml

Substitute their values, 
v = 4000 / 1897
v = 2.108 ml

In short, Your Answer would be 2.108 mL

Hope this helps!
3 0
3 years ago
Two volumes of William Shakespeare stand on a bookshelf next to each other: volume one, then volume two. Each volume is 4 cm thi
Setler79 [48]

Answer:

L = 7 [cm]

Explanation:

To solve this problem we must analyze each of the distances mentioned and take into account the number of covers and thicknesses of these.

The worm crosses through the sheets of the first book, this distance can be determined by the following length analysis.

4 = P + 2*C

Where:

P = thicknesses of the pages [cm]

C = thicknesses of each cover [cm]

P = 4 - 2*(0.5)

P = 3 [cm]

The distance crossed was:

L = P + 2C + P "the pages of the first book + 2 covers + the pages of the second book"

L = 3 + (2*0.5) + 3

L = 7 [cm]

7 0
3 years ago
A toy plane is flying in a horizontal circle by being attached to a 0.75 meter string. The plane has a mass of 101.7 grams and m
nadezda [96]

Answer:

F = 2,894 N

Explanation:

For this exercise let's use Newton's second law

      F = m a

The acceleration is centripetal

     a = v² / r

Angular and linear variables are related.

     v = w r

Let's replace

     F = m w² r

The radius r and the length of the rope is related

    cos is = r / L

    r = L cos tea

Let's replace

    F = m w² L cos θ

Let's reduce the magnitudes to the SI system

     m = 101.7 g (1 kg / 1000g) = 0.1017 kg

      θ = 5 rev (2π rad / rev) = 31,416 rad

     w =  θ / t

     w = 31.416 / 5.1

     w = 6.16 rad / s

     F = 0.1017 6.16² 0.75 cos  θ

     F = 2,894 cos  θ

The maximum value of F is for  θ equal to zero

     F = 2,894 N

7 0
3 years ago
A small black spot is present on the metal plate and if the metal plate is heated to red hot and quickly placed in a dark room t
guapka [62]

this has something to do with black body radiation and absorption

8 0
3 years ago
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