Astronaut John Young, commander of the Appolo 16 mission, leaps from the lunar surface at Descartes landing site as he salutes the Unites States flag. The roving vehicle is parked in front of the lunar module.

 After completer chapitre 1, you try to solve these problems:

1. For each of the following systems, give two examples of how a mechanical engineer would be involved in its design.
   (a) Passenger automobile engine
   (b) Escalator
   (c) Computer hard disk drive
   (d) Artificial hip implant
   (e) Baseball pitching machine

2. For each of the following systems, give two examples of how a mechanical engineer would be involved in its analysis.
   (a) Jet engine for a commercial airliner
   (b) Rover robot for planetary exploration
   (c) Computer ink-jet printer
   (d) Smart phone
   (e) Can of soda from a vending machine

3. For each of the following systems, give two examples of how a mechanical engineer would be involved in its manufacture.
   (a) Graphite-epoxy skis, tennis racket, or golf club
   (b) Elevator
   (c) Blu-ray player
   (d) Automatic teller banking machine
   (e) Automotive child safety seat

4. For each of the following systems, give two examples of how a mechanical
   engineer would be involved in its testing.
   (a) Hybrid gas-electric passenger vehicle
   (b) Motors for remote-control cars, planes, and boats
   (c) Bindings for snowboards
   (d) Global positioning system (GPS) satellite receiver
   (e) Motorized wheelchair

5. For each of the following systems give an example of how a mechanical engineer
   would have to address global issues in its design.
   (a) Dialysis machine
   (b) Microwave oven
   (c) Aluminum mountain bike frame
   (d) Automotive antilock brake system
   (e) Lego toys

6. For each of the following systems give an example of how a mechanical engineer
   would have to address social issues in its design.
   (a) Dishwasher
   (b) E-book reader
   (c) Coffee maker
   (d) Cordless electric drill
   (e) Infant high chair

7. For each of the following systems give an example of how a mechanical engineer
   would have to address environmental issues in its design.
   (a) Wetsuit
   (b) Refrigerator
   (c) Space tourism vehicle
   (d) Automobile tires
   (e) Infant jogging stroller

8. For each of the following systems give an example of how a mechanical engineer
   would have to address economic issues in its design.
   (a) Clothes dryer
   (b) Robotic lawnmower
   (c) Retractable stadium roof
   (d) Toothpaste tube
   (e) Paper clip

9. Looking forward by 100 years, what technological advance do you think will be regarded at that time as having been a significant achievement of the mechanical engineering profession during the twenty-first century? Prepare a technical report of at least 250 words that explains the rationale for your speculation.

10. What do you think are the three most significant issues facing engineers today? Prepare a technical report of at least 250 words that explains your rationale.