Select the correct answer.

Which is a simple machine that converts rotational motion into motion in a line?

A. wedge

B. lever

C. screw

D. wheel and axle

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An engineering student claims that a country road can be safely negotiated at 65 mi/h in rainy weather. Because of the winding nature of the road, one stretch of level pavement has a sight distance of only 510 ft.

You are considering the purchase of a heat pump system with aresistive heating element in the air-handler for back-up during the extra cold winter months when the temperature is below the heat pump's capability.

When removing the balance shaft assembly: Technician A inspects the bearings for unusual wear or damage. Technician B smoothens a damaged camshaft or balance shaft journal by lightly sanding it. Who is correct

The following sentence can be categorized as what stage in the Scientific Method: Abraham notices that Saharan desert ants will take great distances when looking for food, however once return from their journey they will take the shortest distance

Mike wants to manufacture a saucepan. Which physical factor should he consider the most in determining the choice of a material for it?

7 Single-use earplugs require a professional fitting before they can be used. A True B) False

Electric power is to be generated by installing a hydraulic turbine-generator at a site 138 m below the free surface of a large water reservoir that can supply water at a rate of 2400 kg/s steadily. Determine the power generation potential.

When the French horn plays with brass instruments, then it is played very softly to match the texture. True/False

You're running an engine and seeing that it is exhausting blue smoke. Which is likely to be the problem?

To do a research, a researcher needs to be clear about what he/she is doing, why he/she is doing it and the associated implications of what he/she is about to do. A. True B. False