Question: the mechanical properties of cobalt may be improved by incorporating fine particles of tungsten carbide (wc). given that the moduli of elasticity of these materials are, respectively, 200 gpa and 700 gpa, plot modulus of elasticity vs. the volume percent of wc in co from 0 to 100 vol% using both upper- and lower-bound expressions to form a performance envelope into which the material will fall. remember that the isostrain case is the upper-bound case and the isostress is the lower-bound case. mechanical properties: mechanical properties to identify and classify the materials. the most common mechanical properties are ductility, tenacity, strength, impact resistance, hardness. the mechanical property does not depend on the quantity of the material.

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above

Avoltaic cell converts chemical energy to