test question
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you have been hired to design a family-friendly seesaw
rom the end of the board when seated. You have selected a child of mass, (seated furthest from the pivot) and an adult of mass, (seated closest to the pivot) to test out your prototype.
a. Determine the distance d in meters.
b. Determine the magnitude of the force exerted on the pivot point by the see-saw while in use in newtons.
Compute the diameter of a mild steel rod which have been cold worked to 27.59% having original diameter of 23.15mm?
plz answer its question.
Thermodynamics Question
See figure attached
1. An Atkinson cycle has state 1 as 150 kPa, 300K, a compression ratio of 9, and an expansion ratioof 14. Find the mean effective pressure.