Calculate the fraction of atom sites that are vacant for lead at its melting temperature of 327°C (600 K). Assume an energy for vacancy formation of 0.55 eV/atom.

Water flows at 5 Liters/s through a horizontal pipe that narrows smoothly from 10 cm diameter to 5 cm diameter. A pressure gauge in the narrow section reads 50 kPa. What is the reading of the pressure gauge in the wide section

When a group of engineers conduct a trial launch of a new rocket, the rocket explodes on the launchpad. What should the engineers do next? O A. Add a new functionality to the rocket, such as a GPS tracking system. O B.

An automobile engine provides 632 Joules of work to push the pistons and generates 2203 Joules of heat that must be carried away by the cooling system. Calculate the change in the internal energy of the engine. E

Which of the following is the best way to prevent poor user orientation in a website? O avoiding multiple competing navigation menus labeling all pages with meaningful titles including a search feature on large sites including a comprehensive site

James is planning on registering for a course in electrical engineering. Which of the following sub disciplines could he opt for?

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

What is the main role of matrix in composites! a) - to transfer stress to the other phases b) - to protect phases from environment c) - to reduce the hardness d) - to enhance ductility