How long have simple machines been around?

Group of answer choices

A: thousands of years

B: 850 years

c: millions of years

d: hundreds of years

An airplane starts from rest, 6050 ft down a runway at uniform accelerationthen takes off with a speed of 150mi / h. It then climbs in a straight line with a uniform acceleration of 2 ft/s^ 2 until it reaches a constant speed of 195mi / h.

Why is the study of technological history important?

he efficiency of a steam power plant can be increased by bleeding off some of the steam that would normally enter the turbine and usingit to preheat the water entering the boiler.

How does an airfoil create lift?

3. Technician A says that on-board self-diagnostics test mode procedures should be conducted on a cold engine. Technician B says that many diagnostic trouble codes (DTCs) will monitor items only when the engine control system is in closed loop.

Brian is responsible for ordering cement for a construction project. He had just determined that the construction crew would need 540 cubic yards of cement when the building owner decided to shorten the driveway, eliminating the need for 44 cubic

Dave is a recruiter for a very large graphic design firm and he is looking for an employee who is willing to give the entire productive hours to activities related to the job. Which quality is he looking for?

Which of the following is a common use for commas? Separating two elements Separating unrelated adjectives Connecting two independent clauses Connecting two dependent clauses

Which component stores energy as potential energy in a mechanical system?

A floor system has W24 x 55 sections spaced 8'-0"" o. c. supporting a floor dead load of 50 psf and a live load of 80 psf. Determine the governing load. Show all work.