PLS HELP ME The Euler buckling load of a 160-cm-long column will be times the Euler buckling load of an equivalent 120-cm-long column.

1.78

0.56

0.75

2.37

1.33

0.42

Calculate the minimum area moment of inertia for a rectangular cross-section with side lengths 3 cm and 8 cm.

201 cm4

18 cm4

128 cm4

4 cm4

24 cm4

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.