The image below shows a laser that has been shot into a solid block of transparent plastic from the far left end. Once inside th
e plastic block, the light is repeatedly reflected off of the sides until it reaches the opposite end, on the right.
Image courtesy of Wikipedia
The picture above demonstrates how
A.
optical fibers transmit light signals in high-speed communications.
B.
satellites communicate with ground controllers from outer space.
C.
solar cells transform light energy into electrical energy.
D.
electricity is transmitted from a solar power plant to residential homes.
Image courtesy of Wikipedia
The picture above demonstrates how
A.
optical fibers transmit light signals in high-speed communications.
B.
satellites communicate with ground controllers from outer space.
C.
solar cells transform light energy into electrical energy.
D.
electricity is transmitted from a solar power plant to residential homes.
1 answer:
Answer:
A. Optical fibers transmit light signals in high-speed communications.
Explanation:
You didn't include the image, but it probably showed light bouncing off the sides as in the diagram below.
It demonstrates how optical fibers transmit light signals in high-speed communications.
B is wrong. Satellites communicate by radio waves.
C is wrong. Solar cells convert light energy to
D is wrong. Power plants transmit electrical energy to homes through copper wires.
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C: 0.012 mol.
<h3>Explanation</h3>Start with 0.0020 moles of iodate ions .
How many moles of iodine will be produced?
converts to
in the first reaction. The coefficient in front of
is three times the coefficient in front of
. In other words, each mole of
will produce three moles of
. 0.0020 moles of
will convert to 0.0060 moles of
.
How many moles of thiosulfate ions are required?
reacts with
in the second reaction. The coefficient in front of
is twice the coefficient in front of
. How many moles of
does each mole of
consume? Two. 0.0060 moles of
will be produced. As a result,
moles of
will be needed.