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aivan3 [116]
3 years ago
9

Scientist infer that most of earth earliest atmosphere was produced by?

Physics
2 answers:
Paladinen [302]3 years ago
5 0
<span>Scientists infer that most of Earth earliest atmosphere was produced by the escape of gases from Earth's molten surface. Once these gases were released from the very hot surface that covered the Earth, the earliest stages and levels of the atmosphere we know today were created. Many of those earliest gases still make up our atmosphere today.Hope this helps. Let me know if you need additional help!</span>
Nimfa-mama [501]3 years ago
4 0

Scientists infer that most of Earth earliest atmosphere was produced by the escape of gases from Earth's molten surface. Once these gases were released from the very hot surface that covered the Earth, the earliest stages and levels of the atmosphere we know today were created. Many of those earliest gases still make up our atmosphere today


Explanation:

Earth shaped through a method of accretion -collision of rocks and dirt particles, that step by step shaped a bigger and bigger object. These impacts generated loads of warmth, therefore early Earth would are a hot and desolate place. Vapour is assumed to own shaped a steam atmosphere, and incoming iron-rich rocks colliding with Earth would have reacted with a number of this water to provide rise to H gas.

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A system gains 767 kJ of heat, resulting in a change in internal energy of the system equal to +151 kJ. How much work is done?
Crazy boy [7]

Answer:

The work done on the system is -616 kJ

Explanation:

Given;

Quantity of heat absorbed by the system, Q = 767 kJ

change in the internal energy of the system, ΔU = +151 kJ

Apply the first law of thermodynamics;

ΔU = W + Q

Where;

ΔU  is the change in internal energy

W is the work done

Q is the heat gained

W = ΔU  - Q

W = 151 - 767

W = -616 kJ (The negative sign indicates that the work is done on the system)

Therefore, the work done on the system is -616 kJ

6 0
3 years ago
A child stands on the edge of a merry-go-round of radius 1.63 m which is rotating at 2.13 rad/s.
Brilliant_brown [7]

Answer:

9

Explanation:

2.13 rad/s * 26.9 sec

2.13 * 26.9

57.297

3282.88 deg / 360 deg = 9.12

It makes 9 complete revolutoins

7 0
2 years ago
When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less dam
iris [78.8K]

Answer:

Explanation:

Given:

U1 = 1.6 m/s

U2 = -1.1 m/s

M1 = 1850 kg

M2 = 1400 kg

V1 = 0.27 m/s

Using momentum- collision equation,

M1U1 + M2U2 = M1V1 + M2V2

1850 × 1.6 - 1400 × 1.1 = 1850 × 0.27 + 1400 × V2

1420 = 499.5 + 1400V2

V2 = 0.6575 m/s

B.

KE = 1/2 × MV^2

KEa1 + KEa2 = KEb1 + KEb2

Delta KE = KE2 - KE1

KEa1 = 2368 J

KEb1 = 847 J

KEa2 = 67.433 J

KEb2 = 302.6 J

KE1 = KEa1 + KEb1

= 3215 J

KE2 = 370.033 J

Delta KE = -2845 J.

5 0
3 years ago
Does gravity hold things together?
mariarad [96]
  <span>Gravity is an attractive force. All masses exert gravity, so matter pull toward each other. However, it is only significant when the masses are large, like that of Earth.  Exactly what causes gravity still remains a mystery. Since all the other three fundamental forces (strong, weak, and electromagnetic) are caused by particles called bosons, some scientists think that gravity is caused by particles called the graviton. However, such a particle has not yet been observed, and its existence has not been proven yet. 
Also, gravity does not hold EVERYTHING together, as another person has already mentioned. Static electricity holds your socks together after they come out of the dryer, not gravity. Also, gravity is too weak to hold together, say, the nucleus of atoms, or even atoms of molecules together.</span>
3 0
3 years ago
Read 2 more answers
Exercise can help to prevent which potential health problem? a). head lice b). chicken pox c). heart disease d). strep throat
Mrac [35]

Answer:

C

Explanation:

Exercise also increases your levels of HDL cholesterol, the "good" cholesterol that lowers heart disease risk by flushing the artery-clogging LDL or "bad" cholesterol out of your system.

5 0
4 years ago
Read 2 more answers
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