A scientist has made test models of biodegradable food containers. The scientist has stayed within the cost constraint, but the containers wear out after one use by the customers. The goal is for the containers to last for at least three uses. Which step would help the scientist identify a solution that best meets customers’ needs? Pick witch one is correct Increase the cost constraint and make the container to sell to customers.

Perform research to find out whether the cost or the number of uses is more important to customers.

Increase the cost constraint and decrease the goal number of uses so that the design meets the criteria and constraints.

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.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.