Which is smallest?
A) a galaxy
B) a local group
C) a Supercluster
D) the observable universe
Answer: A
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Power: A battery is rated such that it provides 1.0 mW of power at 9.0 V when fully charged. How much current can it deliver?
A. 0.11 mA B. 81 kA C. 0.33 mA D. 9.0 kA
The emergency blankets in some first-aid kits consist of very thin Mylar that has been coated with aluminum to make it shiny. How can such thin plastic be a blanket? Which mechanism of a person’s heat loss is most effectively suppressed by the blanket?
A. Conduction B. Convection C. Radiation
If the ________ is good, the atmosphere is stable, and image quality is sharp
Fill in the blank(s) with correct word
According to Newton's second law, the angular acceleration experienced by an object is directly proportional to:
a. its moment of inertia. b. the net applied torque. c. the object's size. d. choices a and b above which are both valid.