20. What is the area of a piece of metal foil that measures 43.9 cm by 29.21 cm? Express the answer to
the correct number of significant figures.
a. 128 cm2
b. 1280 cm?
1280.3 cm?
d. 1280.32 cm
128.0319 cm?
C.
e.

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring