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Zolol [24]
4 years ago
7

True or false The Oort cloud is a large collection of comets that surrounds the solar system.

Physics
1 answer:
Mila [183]4 years ago
6 0
<span>So we want to know if it is true or false that The Oort clout is a large collection of comets that surrounds the Solar system. The Oort cloud is roughly a spherical shell that surrounds the Solar system and it mostly consists of icy objects and it is the source of the most of the long term comets that have been observed. So the answer is TRUE. </span>
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A 55-kg mountain climber, starting from rest, climbs a vertical distance of 701 m. At the top, she is again at rest. In the proc
aksik [14]

Answer:

7.75%

Explanation:

mass of climber, m = 55 kg

height, h = 701 m

Qc = 4.5 x 10^6 J (heat exhaused by the body)

Work = m x g x h

W = 55 x 9.8 x 701

W = 377839 J

W = QH - Qc

Where, QH is the heat input

QH = 377839 + 4.5 x 10^6

QH = 4877839 J

So, the efficiency

e = W / QH

e = 377839 / 4877839

e = 0.0774 = 7.75 %

Thus, the efficiency of the body is 7.75 %.

3 0
3 years ago
Using the law of conservation of energy, what is the kinetic energy at B? K.E. = 3, 6, or 4.8
musickatia [10]

Answer:

3

Explanation:

7 0
3 years ago
A neutral atom possesses an atomic number of 13 and an atomic mass of 27. Three electrons are lost. From what region of the atom
slega [8]
The atomic number of the atom is 13. This means that its electronic configuration is (2 8 3) or in other words:
1<span>s2, </span>2<span>s2, </span>2<span>p6, </span>3<span>s2, </span>3<span>p<span>1

If three electrons are lost, then these electrons are removed from the outermost level.
In our case, electrons are removed from the third energy level (one electron is removed from the 3p orbital and two electrons are removed from the 3s orbital).</span></span>
8 0
3 years ago
What will create static electricity?
frosja888 [35]

Answer:

Friction between two objects causes a transfer of electrons from one object to the other.

Explanation:

3 0
3 years ago
1. Describe how the periodic table differentiates between metals and nonmetals.
IgorC [24]
There would be a symbol on names of the elements that would say which state it would usually be in.


there are more metals in the periodic table of elements (currently) if that's what the second question is asking about
7 0
3 years ago
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