Consider a sphere and a cylinder of equal volume made of copper. Both the sphere and the cylinder are initially at the same temperature and are exposed to convection in the same environment. Which do you think will cool faster, the cylinder or the sphere? Why?
What will be an ideal response?
The cylinder will cool faster than the sphere since heat transfer rate is proportional to the surface area, and the sphere has the smallest area for a given volume.
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In a center for mentally challenged people, a decision was made to monitor each individual person using wireless devices. Can you comment on the relative advantages and disadvantages of such an infrastructure?
What kind of personal information would you like to maintain in the database and why is it important? Explain clearly.
Mobile aquatic organisms that grow into nonmobile adults are:
a. zooplankton c. plankton b. larvae d. salmonids
Are protozoa mostly predators, capturing their prey by engulfing them and absorbing them into their
bodies?
Indicate by YES (Y) or NO (N).Which instrument is most commonly used to measure AC current?
a. Ohmmeter b. Multimeter c. Continuity tester d. Clamp-on ammeter