If you bend from the waist to pick up an object weighing 20 pounds (9.07 kg), the amount of pressure applied to your lower back is _____.
a. 2 pounds (0.9 kg)
b. 20 pounds (9.07 kg)
c. 200 pounds (90.7 kg)
d. 2,000 pounds (907 kg)
c. 200 pounds (90.7 kg)
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Assume the beam in Prob. 12.23 is weightless.
(a) Find the reactions at A and B for the three forces acting on the beam and (b) Find the reactions using the resultant force found in Prob. 12.23. Compare the results and explain.
?Which welding process has the lowest operating factor?
A. ?GMAW B. ?GTAW C. ?SMAW D. ?FCAW
6.73 + 9.552 - (7.2 ) - (-0.321 ) =
A) -8.761 B) 23.803 C) 8.761 D) 9.403
Technician A says that some vehicles with ESC continuously monitor wheel speed conditions and modulate hydraulic force to individual wheels to maintain stability. Technician B says that vehicles using traction control systems can reduce engine torque in slippery driving conditions. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician