In a steam engine the pressure and volume of steam satisfy the equation 
, where k is a constant. (This is true for adiabatic expansion, that is, expansion in which there is no heat transfer between the cylinder and its surroundings.) Calculate the work done by the engine (in ft-lb) during a cycle when the steam starts at a pressure of 160 
and a volume of and expands to a volume of 1000 
. Use the fact that the work done by the gas when the volume expands from 
to volume
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.
What will be an ideal response?
Mathematics
src="https://sciemce.com/media/4/d2c401ab8f0a4e79v.png" class="w-image" /> is .
What will be an ideal response?
Mathematics
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Find the volume of the indicated region.the region enclosed by the cylinder 
and the planes 
and 
A. 864? B. 432? C. 216? D. 648?
Mathematics
Graph the polynomial 
.
?
(a) From the graph, determine how many local maxima the polynomial has.
?
(b) From the graph, determine how many local minima the polynomial has.
What will be an ideal response?
Mathematics
Write the complex number in the form a + bi.6 
A. -6i B. 6 C. 6i D. -6
Mathematics
Simplify the expression. Assume all variables represent positive real numbers.3
+ 
A. 7
B. 3
+ 
C. 4
D. 12
Mathematics