Use northwind database and base your stored procedure off the columns found in the customer table. write a stored procedure named, custregion, that accepts a region as a parameter. the stored proc is to return only the customerid, companyname, and the region. write it so that it can return those rows where the region is a null value as well as allowing the user to submit via the parameter a region name such as bc, sp, or, df, isle of wight, etc. note: you must test for a null value using the is null statement and can't code a where clause using an '= null' as that is not correct and will result in no rows being returned.

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody