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statuscvo [17]
4 years ago
12

Does using oxygen to separate molten

Physics
1 answer:
Crazy boy [7]4 years ago
4 0
No because I think there is a chemical interaction between the oxygen and copper, but I'm not sure.
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What unit is electrical energy typically measured in on energy bills?
velikii [3]
Electricity<span> is </span>measured<span> in </span>units<span> of power called Watts</span>
6 0
3 years ago
Read 2 more answers
If hydrogen and helium are the most abundant elements in the unoverse , then why are living organisms composed primarily of carb
Mumz [18]

Answer:

Most of materia isnt life.

Explanation:

The living organisms (life) aren't the most abundant thing in universe.

Hydrogen and helium are present in everywhere, but life isn't.

There is no reason to think because we have a lot of a thing, the life must be made for this thing.

The organic life just can exists because some mysterious properties about carbon, that is the basic foundation of life, carbon is a special element, why? We don't know, actually, it's a huge problem for science discover why the carbon can makes life be possible and other elements can't. But we know is this element that makes life possible.

So, note there isn't relation about the quantity of a material in Universe and the life constituition. In addition, look around, organic materials are very rare in Universe, Earth is one in lots of places and in most of this places there isn't sign of life.

Even in Earth the life looks abundant, in Universe it isn't, the same way in Universe the Hydrogen and Helium are abudant, in Earth isn't soo.

3 0
3 years ago
A steam engine absorbs 1.98 × 105 j and expels 1.49 × 105 j in each cycle. assume that all of the remaining energy is used to do
VikaD [51]
B) The heat absorbed by the engine is Q_{in} = 1.98 \cdot 10^5 J while the heat expelled is Q_{out} = 1.49 \cdot 10^5 J, therefore the work done by the engine is the difference between the heat absorbed and the heat expelled:
W=Q_{in} - Q_{out} = 1.98 \cdot 10^5 J - 1.49 \cdot 10^5 J = 0.49 \cdot 10^5 J

a) The efficiency of the engine is the ratio between the work done by the engine and the heat absorbed, therefore:
\eta= \frac{W}{Q_{in}} = \frac{0.49 \cdot 10^5 J}{1.98 \cdot 10^5 J}=0.247 = 24.7\%
8 0
4 years ago
A light beam in glass (n = 1.5) reaches an air-glass interface, at an angle of 60 degrees from the surface. What is the angle of
tester [92]

Answer:

θ₂ = 35.26°

Explanation:

given,

refractive index of air, n₁ = 1

refractive index of glass, n₂ = 1.5

angle of incidence, θ₁ = 60°

angle of refracted light, θ₂ = ?

using Snell's Law

n₁ sin θ₁ = n₂ sin θ₂

1 x sin 60° = 1.5 sin θ₂

sin θ₂ = 0.577

θ₂ = sin⁻¹(0.577)

θ₂ = 35.26°

Hence, the refracted light is equal to  θ₂ = 35.26°

7 0
3 years ago
Between two objects.
Ira Lisetskai [31]

Answer:

C Friction

Explanation:

6 0
3 years ago
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