What should you check before lifting the vehicle?

That the vehicle is clear from surrounding objects.

That there is no one inside the vehicle.

That there are no heavy objects inside the vehicle.

What are significant figures

A torsion member has an elliptical cross section with major and minor dimensions of 50.0 mm and 30.0 mm, respectively. The yield stress of the material in the torsion member is Y=400 MPa.

An air conditioner removes heat steadily from a house at a rate of 750 kJ/min while drawing electric power at a rate of 6 kW. Determine (a) the COP of this air conditioner and (b) the rate of heat transfer to the outside air.

Determine the average and rms values for the function y (t) = 23+10*sin (6*pi*t) over the time period (a) 0 to 0.1sec (b) 0.4 to 0.5sec (c) 0 to 20sec. Comment on the nature and meaning of the results in terms of analysis of dynamic signals.

n the first circuit configuration (RL = 10k), how many periods of the input signal V1 does it take for the output voltage, V3, to reach a final periodic state? Choose the option closest to the value you measure.

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