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xenn [34]
3 years ago
9

Which stage of atmospheric evolution is characterized by conditions rich in water vapor and carbon dioxide?

Physics
1 answer:
Anni [7]3 years ago
5 0

Answer: Option A: Atmosphere II

Atmosphere I consisted of gases: mostly hydrogen, water vapor, methane and ammonia. Thereafter, with the out gassing of volcanoes and bombardment of earth by asteroids, gases like nitrogen, carbon-dioxide etc. characterized our atmosphere leading to atmospheric evolution: atmosphere II. Hence, stage II of atmospheric evolution was characterized by conditions rich in water vapor and carbon-dioxide.



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State any two effects of gravitational force​
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3 years ago
A wheel rotates about a fixed axis with a constant angular acceleration of 4.0 rad/s2. The diameter of the wheel is 40 cm. What
Ray Of Light [21]

Answer:

v = 0.42m/s

Explanation:

In order o calculate the linear speed of the point at the border of the wheel, you first take into account that the total acceleration of such a point is given by:

a_{total}^2=a_r^2+a_t^2       (1)

atotal: total acceleration = 1.2m/s^2

ar: radial acceleration of the wheel

at: tangential acceleration

The tangential acceleration is also given by:

a_t=r\alpha     (2)

r: radius of the wheel = (40cm/2 )= 20cm = 0.2m

α: angular acceleration = 4.0rad/s^2

You replace the expression (2) into the expression (1) and solve for the radial acceleration:

a_{total}^2=a_r^2+(r\alpha)^2\\\\a_r=\sqrt{(a_{total})^2-(r\alpha)^2}\\\\a_r=\sqrt{(1.2m/s^2)^2-((0.2m)(4.0rad/s^2))^2}=0.894\frac{m}{s^2}

Next, you use the following formula for the radial acceleration and solve for the linear speed:

a_r=\frac{v^2}{r}\\\\v=\sqrt{ra_r}=\sqrt{(0.2m)(0.894m/s^2)}=0.42\frac{m}{s}

The linear speed of the point at the border of the wheel is 0.42m/s

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4 years ago
For an object sliding at velocity v with a force of friction Fk and a normal force FNs which equation can be usedto calculate th
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Answer:

C.

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Apex says so

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4 years ago
Two light beams can interfere in a way that results in a less-intense beam of light. This destructive interference supports whic
riadik2000 [5.3K]

Answer: the wave model

Explanation: I just took the test

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3 years ago
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Answer:

Helium will have the highest average speed

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