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mixer [17]
3 years ago
8

We know that a ship, even though it is madeup of tonnes of iron, floats on water. How do you feel about the scientists who found

the scientific principles and efforts in making a ship?
Physics
1 answer:
slamgirl [31]3 years ago
3 0
I feel admiration and respect for them, and I feel grateful and humble.
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7 One lb of Refrigerant 134a contained within a piston–cylinder assembly undergoes a process from a state where the temperature
julsineya [31]

Answer:

\Delta S = S_2-S_1 = 0.08835 \frac {BTU} {Lb ^ {\circ} R}

Explanation:

A) In order to solve the table it is necessary to consult tables A11-E and A10E for refrigerant R134-a

In this way we obtain that:

S_1 = S_f = 0.0648 \frac {BTU} {Lb. ^ {\circ} R}

In this way,

S_2 = S_f + x_2 (S_g-S_f) = 0.0902 + 0.5 (0.2161-0.0902)

S_2 = 0.15315 \frac {BTU} {Lb ^ {\circ} R}

In this way the entropy change is,

\Delta S = S_2-S_1 = 0.08835 \frac {BTU} {Lb. ^ {\°} R}

B) Whenever entropy yields a positive result, the process can be carried out adiabatically.

7 0
3 years ago
I need help ASAP....
Svetradugi [14.3K]

Answer:

Meters

Explanation:"How FAR did the athlete run?"

Also it talked about meters

5 0
4 years ago
the musical note A above middle C has a frequency of 440 Hz. If the speed of the sound is known to be 350 m/s, what is the wavel
Leona [35]
Wavelength = speed / frequency

= (350 m/s) / (440/s)

=. 0.795 meter
8 0
4 years ago
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What is the relationship between the force of gravity between two objects in regard to their mass and the distance between them?
Mashcka [7]

Answer:

hi

Explanation:

5 0
3 years ago
One astronomical unit (AU) is equal to the average distance between Earth and:
masya89 [10]
<span>One astronomical unit is equal to the average distance between the Earth and the Sun. The answer is letter B. However, the distance between the earth and the sun varies as the earth revolves around the sun. but recent discoveries have proven the exact distance. It is also equal to 149, 597, 870, 700 meters and was defined by the International Astronomical Union. </span>
7 0
4 years ago
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