Answer:
357.6 lb-ft
Explanation:
V = Volume = 8 ft³
dP = Change in pressure = (40-10) = 30 psig
Work done is given by


So, converting to ft-lb

The external work performed during the expansion is 357.6 lb-ft
Answer:
2,8
Explanation:
The first electron shell would have 2 electrons, the second shell would have 8 electrons. This is because Neon has a relative charge of 10.
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Draw a free body diagram to help you visualize. draw the object and use arrows to label and determine where all the forces acting upon it will be. then u add up the sum of all forces. if two forces of equal magnitude and opposite directions will cancel each other out.