Inventions for a 9 year old

From the list below, select four situations in which casting is the preferred fabrication technique. (1) For alloys having low ductilities (2) When it is the most economical fabrication technique (3) When it is needed to join a large variety of

Your department's laser printer recently began printing a vertical black line near the edge of every printed page. What should you do to resolve the problem?

The major resisting force in gravity dam?

12 times the square root of 8737

What is mechanical Advantage in you own words?

The Reynolds number, rhoVD/μ is a very important parameter in fluid mechanics. Determine its value for ethyl alcohol flowing at a velocity of 4 m/s through a 2-in.-diameter pipe.

Work done by a system during a process can be considered as a property of the system. a) True b) False

When the compression process is non-quasi-equilibrium, the molecules before the piston face cannot escape fast enough, forming a high-pressure region in front of the piston. It takes more work to move the piston against this high-pressure region.

hypothetical A-B alloy of composition 40 wt% B-60 wt% A at some temperature is found to consist of mass fractions of 0.66 and 0.34 for the α and β phases, respectively.

10. Which of these requires a wheel alignment after replacement? A. Struts B. Shocks C. Both