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n200080 [17]
3 years ago
13

A substance that contains only one kind of matter is known as a (n)

Physics
1 answer:
8090 [49]3 years ago
5 0
I think the question is fishing for "element".
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An adiabatic closed system is accelerated from 0 m/s to 34 m/s. Determine the specific energy change of this system, in kJ/kg.
prohojiy [21]

Answer:

Δe=0.578 kJ/kg

Explanation:

Given data

Velocity v₁=0 m/s

Velocity v₂=34 m/s

to find

Specific energy change Δe

Solution

The specific energy change is simply determined from change in velocity

Δe=(v₂²-v₁²)/2

Put the given values to find the specific energy change

=(\frac{(34)^{2} *10^{-3} }{2} )\\=0.578kJ/kg

Δe=0.578 kJ/kg

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