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vladimir2022 [97]
3 years ago
9

Which is given as an explanation for how the Paleozoic supercontinent ice cap melted

Physics
2 answers:
GarryVolchara [31]3 years ago
4 0

Answer:

This was caused by an early green house effect. The green house effect was caused by big plant and forest fires. Plants dying off increased the green house effect. The amount of CO2 in the air caused the planet to get warmer which meant that life could thrive once again.

Explanation:

Not sure if this is the answer you are looking for. If not Please forgive me.

Veseljchak [2.6K]3 years ago
4 0

Answer:

Plants dying off increased the greenhouse effect

Explanation:

Apex 2019

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A copper rod has a length of 1.3 m and a cross-sectional area of 3.6 10-4 m2. One end of the rod is in contact with boiling wate
sdas [7]

To solve the problem it is necessary to apply the concepts related to heat flow,

The heat flux can be defined as

\frac{dQ}{dt} = H = \frac{kA\Delta T}{d}

Where,

k = Thermal conductivity

A = Area of cross-sectional area

d = Length of the rod

\Delta T= Temperature difference between the ends of the rod

k =388 W/m.\°C Thermal conductivity of copper rod

A = 3.6 *10^{-4} m Area of cross section of rod

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d=1.3m length of rod

Replacing then,

H = \frac{kA\Delta T}{d}

H = \frac{(388)(3.6 *10^{-4})(100)}{1.3}

H=10.7446J

From the definition of heat flow we know that this is also equivalent

H = \dot{m}*L

Where,

\dot{m} = Mass per second

L = 334J/g Latent heat of fusion of ice

Re-arrange to find \dot{m},

H = \dot{m}*L

\dot{m}=\frac{L}{H}

\dot{m}=\frac{334}{10.7446}

\dot{m} = 31.08g/s

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7 0
3 years ago
49. In what direction does the force of friction act?
liubo4ka [24]
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6 0
3 years ago
A concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35°. The kinetic between the slab and slope is 0.60
belka [17]

I got you

Explanation:

normal force = 400 g cos 35

friction force up slope = .6 (400 g) cos 35

weight component down slope = 400 g sin 35

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a = g (sin 35 - .6 cos 35) = .082 g

I hope this helps you

8 0
2 years ago
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