Consider a 50-mH inductor. a. Express the voltage across the inductor and then evaluate it at t = 0.25 s if iL (t) = 5e - 2t + 3te-2t - 2 A. Be certain to simplify your expression.

Which of the following is not true about intrusion detection systems (motion detectors, vibration sensors, light beams) ? A. They require human responseB. They cause a lot of false alarmsC. They depend on a constant power supplyD. They are foolproof

Which of the sequences below represents the various steels types in order of decreasing hardness? a. High-carbon > Low-carbon > Medium-carbon b. Low-carbon > Medium-carbon > High-carbon c. High-carbon > Medium-carbon > Low-carbon d.

Is the storage location for file

Consider a 7-truss structure. The cross-section area of all horizontal and vertical trusses is 3 inch^2, while the diagonal trusses have a cross sectional area of 1 inch^2. The truss structure is steel (modulus is 30 Msi).

A jet impinges directly on to a plate that is oriented normal to the axis of the jet. The mass flow rate of the jet is 50 kg/min and its velocity is 200 m/s. Perform a control volume analysis to calculate the force on the plate.

Familiarity with basic fastener properties: For each of the standard fasteners specified informally below, determine the major diameter d, the pitch p, the pitch diameter dp, and the bolt length L.

The diameter of a cylinder is called the a.) stroke b.) bore c.) principal length d.) radius

Consider the following grooves, each of width W, that have been machined from a solid block of material. (a) For each case obtain an expression for the view factor of the groove with respect to the surroundings outside the groove.

What is the last step to the design process? A: Define the problem B: Present solution C: Evaluate a solution D: Develop a solution

The controller can be considered the brain of closed loop system