Two different groups of researchers studied the flow in this river. First study claimed that the average flow is 2000 cfs and the second study claimed it to be 2500 cfs. Considering the above data, investigate the plausibility of either of the claims at 0.05 level of significance. Evaluate the claims using both critical value and p-value

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.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Major ingredients of traditional ceramics (a) silica (b) clay (c) feldspar (d) all