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scoundrel [369]
3 years ago
14

The materials that made up their solar nebula can be categorized into the four general type as follows. Rank these materials fro

m left to right based on their abundance in the solar nebula, from highest to lowest.
A) Hydrogen and helium gas,
B) hydrogen compounds,
C) rock,
D) metals
Physics
1 answer:
Alchen [17]3 years ago
4 0

Answer: Hydrogen and Helium > Hydrogen compounds > Rocks > Metals

Explanation: The solar nebular system contains 98% Light Gases of both Hydrogen and Helium (produced in the Big Bang); followed by 1.4% of Hydrogen Compounds including water, methane, and ammonia; then followed by 0.4% of Rocks like Silicates; and lastly 0.2% of Metals including Iron, Nickel and Aluminium.

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Answer: Instantaneous speed.

Explanation:

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3 years ago
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got 2 kettle .One got hot water only and the other one got hot water+tea .which kettle got higher boiling points?​
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Answer:

The kettle with hot water only.

Explanation:

Adding tea to hot water reduces the attractive forces between water molecules therefore the water molecules in hot water plus tea will move away from each other faster hence hastening the boiling point.

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4 years ago
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Answer each question yes or no. Assume the motions and currents mentioned are along the x axis and fields are in the y direction
Sergeeva-Olga [200]

(a)  Does an electric field exert a force on a stationary charged object? YES ( F = Eq)

(b)  Does a magnetic field do so?- NO ( F= qvB)  

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(h) Does a magnetic field do so?    YeS

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6 0
2 years ago
What is the sources of error and suggestion on how to overcome it in the hooke's law experiment?
goblinko [34]
In physics, Hooke's law is written in equation as:

F = kx

It states that the force F exerted on the spring is directly proportional to the displacement x by a constant called spring constant k.

In the laboratory, this is done in an experiment through the apparatus shown in the attached figure. The object experimented here is the spring, and you are to find the spring constant. A known mass of object is attached below the spring. That object carries a force in the form of gravitational pull in terms of weight. When the spring stretches, the displacement is measured with the use of the ruler.

There are a number of sources of error for this experiment. First, the reading from the ruler by the reader may be inaccurate. That's why digital balances are much more reliable because it minimizes human error. Reading the measurement on the ruler is subjective especially when you don't read it on eye level. Second, the force of the object might also be inaccurate if you use an unreliable weighing scale. Lastly, the apparatus might not be properly calibrated.

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3 years ago
An athlete is working out in the weight room. He steadily holds 50 kilograms above his head for 10 seconds. Which statement is t
ludmilkaskok [199]
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7 0
3 years ago
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