Mathematics, 30.10.2019 20:31 eamccoy1
When gas expands in a cylinder with radius r, the pressure p at any given time is a function of the volume v: p = p(v). the force exerted by the gas on the piston (see the figure) is the product of the pressure and the area: f = pr2p. the work done by the gas when the volume expands from volume v1 to volume v2 is w.
in a steam engine the pressure and volume of steam satisfy the equation pv1.4 = k, 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 w done by the engine during a cycle when the steam starts at a pressure of 120 lb/in2 and a volume of 300 in3 and expands to a volume of 800 in3. (round your answer to three significant digits.)
w = ft-lb
Answers: 3
Mathematics, 21.06.2019 21:10
Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. β 6 β
β 2 2. ? 3. mβ 6 = mβ 2 3. def. of congruent 4. β 6 is supp. to β 8 4. def. of linear pair 5. β 2 is supp. to β 8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
Answers: 3
Mathematics, 21.06.2019 21:20
Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10
Answers: 2
Mathematics, 21.06.2019 23:10
Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?
Answers: 3
When gas expands in a cylinder with radius r, the pressure p at any given time is a function of the...
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