When two or more simple machines are combined they form

answers

compound machine

complex machine

intricate machine

inefficient machine

Critically analyse a common engineered product in terms of the materials used, the processes required to manufacture the product, and the historical context of the material leading to its present form

Suppose a steam locomotive is rated at 7500 horsepower. If its efficiency is 6%, how much wood must be burned in a 3-hour trip? 1 hp = 750 W. Wood has an energy density of 20.0 MJ / kg.

How can endurance athletes best delay muscle fatigue during training? a. By avoiding sports drinks during exercise b. By eating glucose periodically during the event c. By staying in the moderate intensity range to prevent anaerobic metabolism d.

What are some tasks performed prior to the commencement of a maintenance job activity?

Describe the basic types of chips produced in metal-cutting operations.

What is the definition of a fluid?

You are ordering steel cable for a 250 foot long zip-line you are building in your back yard. The cable can be ordered in diameters with 1/16 inch increments. (1/16, 1/8, 3/16, 1/4, 5/16, 3/8, etc.

Which of the following statements is LEAST-Likely true? A) Do not attempt to unseat the beads of an inflated tire. B) Do not strike the tire or rim with a hammer. C) A hammer is sometimes necessary when removing a passenger car tire.

What is the pitch circle diameter of a 50-tooth spur gear having a circular pitch of 0.375 inch

Emergency plans are being formulated so that rapid action can be taken in the event of an equipment failure. It is predicted that if a particular pipeline were to rupture, it would release ammonia at a rate of 100 lb/s.