ShyanneXo ShyanneXo
  • 21-06-2018
  • Mathematics
contestada

Please help!! I don't understand it.

Please help I dont understand it class=

Respuesta :

elevatorP6
elevatorP6 elevatorP6
  • 21-06-2018
D = π(bore / 2)² · stroke · n
can be rewritten as
D = π(1/2 * bore)² · stroke · n

If bore = k /2, and stroke = h, and # of cylinders = n = 8, then

D = π(1/2 * k/2)² · h · 8
= 8π*h(k/4)²
= 8π*h(k²/16) since (k/4)² = k²/4² = k²/16
= π*h*k²/2

Answer for the first part: D = π*h*k²/2

For second part, if bore = 4 inches, stroke is 3.4 inches, and # cylinders = n = 4, then

D = π(1/2 * bore)² · stroke · n
D = π(1/2 * 4)² · 3.4 · 4
D = 170.9 cubic inches
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