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bulgar [2K]
3 years ago
13

Giải giúp mình câu này được không ạ.em cảm ơn

Engineering
1 answer:
sp2606 [1]3 years ago
4 0

Answer:

çâdßèöñbvjsjaushdhshs

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What are the potential hazards relating to materials handling injuries?
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it's says potential that something not moving.

incorrectly cutting ties or securing devices because

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8 0
3 years ago
What is software certification? Discuss its importance in the changing scenario of software industry. ​
bekas [8.4K]

The software industry is evolving, and software certification is crucial. ​Software certification is a digitally signed certificate that verifies the identification of an individual or company. ​

<h3>What is software certification?</h3>

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Its validity may be checked using public-key cryptography to make sure that the program or website you are accessing is reliable.

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6 0
2 years ago
I have a molten Ni-Cu alloy with 60 wt%Ni. (ii) I cool it down to a temperature where I have both solid and liquid phases. At th
SIZIF [17.4K]

Answer:

The percentage of the remaining alloy would become solid is 20%

Explanation:

Melting point of Cu = 1085°C

Melting point of Ni = 1455°C

At 1200°C, there is a 30% liquid and 70% solid, the weight percentage of Ni in alloy is the same that percentage of solid, then, that weight percentage is 70%.

The Ni-Cu alloy with 60% Ni and 40% Cu, and if we have the temperature of alloy > temperature of Ni > temperature of Cu, we have the follow:

60% Ni (liquid) and 40% Cu (liquid) at temperature of alloy

At solid phase with a temperature of alloy and 50% solid Cu and 50% liquid Ni, we have the follow:

40% Cu + 10% Ni in liquid phase and 50% of Ni is in solid phase.

The percentage of remaining alloy in solid is equal to

Solid = (10/50) * 100 = 20%

4 0
3 years ago
Discuss in three points The old stone age
klasskru [66]

Answer:

Explanation:

<em>Early Stone Age</em>, or Paleolithic, <em>middle</em> and <em>Late Stone Age</em>, or Neolithic

Copper Age or Bronze Age also are part of the stone age

7 0
3 years ago
Read 2 more answers
6.
Licemer1 [7]

Answer:

d

none of the above

hope this is helpful

7 0
3 years ago
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