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3 years ago

Air flowing from the equator to the poles rises and falls in looping patterns. What are these patterns called?

2 answers:

8 0

The correct answer for the given question above would be option B. Air flowing from the equator to the poles rises and falls in looping patterns and these patterns are called convection cells. Convection cells<span> is an important process in the formation of landforms and the movement of winds. Hope this answers your question.</span>

Liono4ka [1.6K]3 years ago

4 0

Answer:

Option (B)

Explanation:

The equatorial region receives the maximum amount of sunlight as the sun is directly above it. Due to this, the earth experiences a higher temperature, as a result of which the air in this region becomes warm and less dense. It then slowly rises up towards the upper atmosphere, forming a low pressure zone. This air when rises up, slowly cools, and after sometime it falls back. This continuous motion of air mass creates convection cells in the atmosphere.

Thus, the correct answer is option (B).

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A child slides down a frictionless playground slide from a height of 2.1 m above the ground. If she starts with an initial speed

baherus [9]

Answer: Final speed will be 6.59 m/s

Explanation: Initial height of slide is 2.1 m

Final height = 0.7 m

Initial speed, u = 4 m/s

Final speed, v = ??

To find the final speed in this question we can use equation of motion i.e.

$v^{2} - u^{2} = 2aS$

Here, S is the distance covered by the child on the slide i.e. net height

S = 2.1 - 0.7 = 1.4 m

and a = g, acceleration due to gravity i.e. 9.8 m/s

Put all the values in the equation,

$v^{2} = u^{2} + 2aS$

$v^{2} = 4^{2} + 2 \times 9.8 \times 1.4$

$v^{2}$ = 16 + 27.44 = 43.44

Taking square root both the sides, we get

v = 6.59 m/s

Final speed will be 6.59 m/s

8 0

3 years ago

If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is

dem82 [27]

As the surface given is a smooth surface, we can use specular reflection. According to the law of specular reflection, the angle of incidence equals the angle of reflection, so it will also be 40°. Answer is A.

5 0

3 years ago

Read 2 more answers

PLEASE HELP!!

pychu [463]

Answer:

Explanation:

because they are pushing a body

8 0

3 years ago

A 1325 kg car and a 2050 kg pickup truck approach a curve on a highway that has a radius of 255 m. At what angle should the high

Scorpion4ik [409]

Answer:

the banking angle of the road is 24.2⁰

Explanation:

Given;

speed of the vehicles considered, v = 75 mi/h

Speed in m/s ⇒ 1 mi/h --------> 0.44704 m/s

75 mi/h --------> ?

= 75 x 0.44704 m/s = 33.528 m/s

radius of the curve, r = 255 m

The banking angle of the road is calculated as;

$\theta = tan^{-1} (\frac{v^2}{rg} )\\\\\theta = tan^{-1} (\frac{33.528^2}{255\times 9.8} )\\\\\theta = tan^{-1}(0.44983)\\\\\theta =24.2^0$

Therefore, the banking angle of the road is 24.2⁰

8 0

3 years ago

What is the result of convection currents in the atmosphere?

Degger [83]

Wind is the result of convection currents. :)

4 0

3 years ago