8. A student lifts a 10.0 pound ball 7.00 feet in 7.00 seconds. How many joules of work did the student complete?
a. 7 lb, ft
b. 1.42 lb, ft
C. 70 lb, ft
d. 75 lb Ft
9. Convert problem 8 into SI Units and then calculate work.
a. 94.65 )
b. 90 J
c. 100
d. 8J

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)