Anyone who scuba dives is advised not to fly within the next 24 h because the air mixture for diving can introduce nitrogen into
1 answer:
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Answer:
Explanation:
The three main particles that make an atom are:
- Proton: its mass is , it carries an electric charge of +e (
), and it is located in the nucles of the atom
- Neutron: its mass is , it carries no electric charge, and it is also located in the nucleus of the atom
- Electron: its mass is , it carries an electric charge of -e (
), and it is located outside the nucleus
Answer:
Change in specific internal Energy
Explanation:
Given:
- Mass of the gas, m=0.4 lb
- Initial pressure and volume are
- Final pressure and temperature are
- Heat transfer from the gas is 2.1 Btu
Since the process is isotropic we have
So the final volume of the gas is calculated.
Work in any isotropic is given by w
According to the first law of thermodynamics we have
So the Specific Internal Change is given by
So the specific Change in Internal energy is calculated.
Answer:
Double the current
Explanation:
The energy delivered by the heater is related to the current by the following relation:
E=
let R * t = k ( ∴ R and t both are constant)
so E= k
Now let:
E2= k I₂^2
E2= 4E
⇒ k I₂^2= 4* k
Cancel same terms on both sides.
I₂^2= 4*
taking square-root on both sides.
√I₂^2 = √4* I^2
⇒I₂= 2I
If we double the current the energy delivered each minute be 4E.