Civil and Environmental Engineering Answers

A plant operation has fixed costs of RM 2,000,000 per year, and its output capacity is
100,000 electrical appliances per year. The variable cost is RM 40 per unit.

short notes on :
1) Objectives of Water Supply System
2) per capita demand of water
3) variations in water demand

Torsional Vibrations. Undamped torsional vibrations (rotations back and forth) of a wheel
attached to an elastic thin rod or wire are governed by the equation I0θ
00 +Kθ = 0, where θ is
the angle measured from the state of equilibrium. Solve this equation for K/I0 = 13.69sec−2
,
initial angle 30◦
(= 0.5235rad) and initial angular velocity 20◦
sec−2
(= 0.349rad · sec−1
).

Undamped torsional vibrations (rotations back and forth) of a wheel
attached to an elastic thin rod or wire are governed by the equation I0θ
00 +Kθ = 0, where θ is
the angle measured from the state of equilibrium. Solve this equation for K/I0 = 13.69sec−2
,
initial angle 30◦
(= 0.5235rad) and initial angular velocity 20◦
sec−2
(= 0.349rad · sec−1
).

how to resolve force F=100N and angle of 30 degrees into its horizontal and vertical component

Fill draw or continuous flow type is appropriate for water treatment project

Цhat is a method statement?

Laboratory tests on human teeth indicate that hte area effective during chewing is approximately 0.25 cm^2 and that the tooth length is about 1.1 cm. If the applied load in the vertical direction is 880 N and the measured shortening is 0.004 cm. Determine Young's Modulus

A steel cube is subjected to a hydrostatic pressure of 1.5 MPa. Because of this pressure the volume decreases to give a dilatation of -10^-5. The Young's Modulus of the material is 200 GPa. Determine Poisson's Ratio of the material and also the bulk modulus.

Find the area of the polygon whose vertices are at (-3,4), (-2,-1), (4,4), (0,5) using the distance formula