Gthe shoplifting sensor at a certain exit gives an alarm 0.23 time a minute. (a) find the median waiting time until the next alarm. (round your intermediate calculations and answer to 4 decimal places.) median waiting time minutes (b) find the first quartile of waiting time before the next alarm. (round your intermediate calculations and answer to 4 decimal places.) first quartile of waiting time minutes (c) find the 82th percentile waiting time until the next alarm. (round your intermediate calculations and answer to 4 decimal places.) 82th percentile waiting time minutes

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

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.

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2