Answer:
(a) The power input to the compressor: 
(b) The volume flow rate of the refrigerant at the compressor inlet: 
Explanation:
(a)
We need to check the values of enthalpy (as we have an open system) for both states, being the inlet, state 1 and the outlet, state 2. We will know these values by checking the vapor charts of R134a, I used the ones found in Thermodynamics of Cengel, 7th edition.
Then, our values are:
Now we proceed to know the work with the following expression:
Now we replace values and our result is:
(b)
To know the volume rate at the compressor inlet, we need to know the specific volume in that phase, as we have that is saturated and at -24°C, we can read our table:
With our specific volume and the mass rate, we can calculate the volume rate:
Answer: December 19, 2009, NBA star Gilbert Arenas and a teammate on the Washington Wizards Javaris Crittenton got in a heated argument over a game, and made violent threated. After Crittenton challenged him to a fistfight, Arenas told his younger teammate he could not fight him, but he'd burn his SUV or shoot him in the face instead.
this overall had a negative affect on black history when it comes to sports or Gilbert
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Answer: Ice melt is generally applied in advance of snow and ice or applied on top of the already formed ice and snow. Ice melt or deicer lowers the freezing point of water, preventing the buildup of ice or breaking up pre-formed ice into liquid slush. This layer absorbs some of the heat from the air and has a slight insulating effect on the remaining ice. When you melt an ice cube in a cup of water, it's exposed to both air and water. The part of the ice cube in the water melts faster than the ice in the air, but as the ice cube melts, it sinks further down. When ice or any other solid melts, its potential energy increases. Indeed, this is the only increase in energy, since the thermal kinetic energy, or temperature, does not increase while melting. At each phase change of water, whether ice to liquid water or liquid water to water vapor, the potential energy decreases.As glaciers melt, they add nutrients to the ocean and fertilize the local ecosystem. In Greenland and Antarctica, the ocean is short on iron, so melting glaciers make up for the lack of iron. Photosynthesizing phytoplankton are the base of the food web in the ocean and require lots of light and nutrients to grow.A
Explanation:
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Answer: You need to lift a load of 15 tons (30,000 pounds) a distance of 25 feet. The distance is measured from the center pin of the crane to the center of the load. Once you determine the distance, look on that line for the largest capacity; that will indicate how many feet of boom must be extended
Explanation:
