A technician pushes a 50-lb box 4 feet in 2 seconds. The work done is:
A) 200 ft-lb/2 s = 100 ft-lb/s. B) 50 lb × 4 ft = 200 ft-lb.
C) 50 lb. D) 4 ft-lb.
B
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? Identify and state the historical significance of the Great English Migration.
What will be an ideal response?
Which of the following are common practice for services installed in vertical chases? Select all that apply.
A) Installing valves on piping runouts from chase to floors. B) Installing fire dampers in ducts runout. C) Providing access platforms for routine maintenance. D) Using chase walls as supply ducts.
The leading producer of goat milk is which of the following?
a. India c. Spain b. America d. Egypt
Four bricks, each weighing 4.5 pounds, drop 20 feet onto a scaffolding plank. How much force in foot-pounds is exerted on the scaffolding?
What will be an ideal response?