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Rom4ik [11]
3 years ago
5

During strengthening heat treatment, the _______ step traps the material in an unstable crystalline structure. a)-Quenching, b)-

Tempering c)-Solution treatment
Physics
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer: A) Quenching

Hope this helps

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A train traveled 85 mph for 7 hours how far did it travel?
Sergio [31]

Answer:

12.1429 miles per hour

Explanation:

4 0
3 years ago
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Which of the following was/were used by the Greek philosophers in
Assoli18 [71]

Answer:

a and c are both correct

Explanation:

The Greek Philosophers had to reject many existing explanations (mostly from the babylonians and the egyptians) because of possible religion bias. <u>They resorted to logic and reason to provide understanding for the world around them</u>. The first set of Greek Philosophers were the Milesian thinkers; <u>whom aside from logic and reason also placed value on Observation in understanding the world</u>.

There are generally no evidence to support the use of experiment to support the claims of the Greek philosophers

5 0
3 years ago
A 10-gram aluminum cube absorbs 677 joules when its temperature is increased from 50°c to 125°
kotegsom [21]

Answer : The specific heat of aluminum is, 0.90J/g^oC

Solution : Given,

Heat absorbs  = 677 J

Mass of the substance = 10 g

Final temperature = 125^oC

Initial temperature = 50^oC

Formula used :

Q= m\times c\times \Delta T

or,

Q= m\times c\times (T_{final}-T_{initial})

Q = heat absorbs

m = mass of the substance

c = heat capacity of aluminium

T_{final} = final temperature

 T_{initial} = initial temperature

Now put all the given values in the above formula, we get the specific heat of aluminium.

677g= (10g)\times c\times (125-50)^oC

c=0.9026J/g^oC=0.90J/g^oC

Therefore, the specific heat of aluminum is, 0.90J/g^oC

7 0
3 years ago
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Examine the total number of orbitals in the n = 1 through 4 shells. what is the relationship between the n value and the total n
Veseljchak [2.6K]

The total number of orbitals in the n = 1 through 4 shells is only 1.

The relationship between the n value and the total number of orbitals is given as

Total number of orbitals = n²

Because there is only one way a sphere can be orientated in space, there is only one(1)  orbital in the n = 1 shell.

An orbital has n² total orbitals for a given value of n.

Each atom's electron is given one of four quantum numbers, the primary quantum number (symbolized n), to describe the state of that electron. It is a discrete variable since the values are all natural numbers starting at 1.

The orbital's size is defined by the primary quantum number (n). For example, orbitals with n = 2 are larger than those with n = 1.

Electrons are drawn to the atom's nucleus because their electrical charges are in opposition to one another.

In order to excite an electron from an orbital where it is close to the nucleus (n = 1) to an orbital where it is distant from the nucleus (n = 2), energy must be absorbed.

Thus, the energy of an orbital is indirectly described by the primary quantum number.

Learn more about Quantum numbers here brainly.com/question/5927165

#SPJ4

4 0
2 years ago
Speed is
Agata [3.3K]

Yes, three good answers:

-- <span>a measure of how fast something is moving,
-- always measured in terms of a unit of distance divided by a unit of time,
and
-- the distance covered per unit time.
</span>
7 0
4 years ago
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