Explain polygon law of vector. Derive an expression for resultant vector

To reduce the drag coefficient and thus improve the fuel efficiency of cars, the design of side rearview mirrors has changed dramatically in recent decades from asimple circular plate to a streamlined shape.

Am i stupid o dont really know

Assuming the torsional yield strength of a compression spring is 0.43Sut and the maximum shear stress is equal to 434MPa. What is the factor of safety if the spring is a music wire (A=2170MPa and m=0.146) with a wire diameter of 4mm?

use engineering judgement to estimate the size of cooling and heating equipment that is needed for a three story, 31,000 square foot classroom building

If you touch a downed power line, covered or bare, what's the likely outcome?

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

What is the definition of diameter pitch?