The unit of electrical resistance is t

1、Which of the following is the reason t

Which of the following is the reason that the metacentric height is a valid measure of only the initial stabilit?（）.AThe metacenter does not...

2、The resistance of electric wire will d

The resistance of electric wire will decrease as its （）Alength increasesBcross-sectional area increasesCtemperature increasesDpercent of metallic purities increase

3、What is the direction of rotation of t

What is the direction of rotation of tropical cyclones,tropical storms and hurricanes in the Northern Hemisphere?（）AClockwise and outwardBCounterclockwise and inwardCCounterclockwise and outwardDClockwise and inward

4、The centre of lateral resistance is（）.

The centre of lateral resistance is（）.Athe center of the hydrodynamic forces acting on the underwater hull to resist the effect of the windBt...

5、The unit of electrical power is the __

The unit of electrical power is the _____.AampereBkilovoltCwattDfarad

6、The resistance to the movement of the

The resistance to the movement of the globule in oily water mixture depends on its size and the （） of the fluid.ApressureBvelocityCgravityDviscosity