In references to nuclear chain reactions, what is meant by the term CRITICAL MASS?
What will be an ideal response?
Critical mass is the minimum mass of fissionable material necessary to produce a chain reaction.
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Process of Science: Gravity only affects very massive objects and we can therefore only test theories about it when looking at the orbits of planets
Indicate whether the statement is true or false
The focal length of a converging lens is 10 cm. What is the magnification of this lens if the image is viewed by a relaxed eye with a near point of 25 cm?
A) 0.5 B) 1.5 C) 2.5 D) 3.5 E) 4.5
A 200-? resistor is rated at 1/4 W. What is the maximum current it can safely draw?
A) 0.035 A B) 0.35 A C) 50 A D) 0.25 A
What would you see on Earth if you were on the near side of the Moon during a solar eclipse?
What will be an ideal response?