Your answer would be true. Because if we didn't have those pieces of evidence, we wouldn't know about a lot of the ancient civilizations that we know today without that. Small pieces of evidence like that can help us to determine how they lived, or what they used to do, or even what they ate.
Uranium is the right answer. Scientists use 5 percent of the uranium after the bomb is refused to create stronger and better nuclear bombs.
Answer:
The speed in the smaller section is 
Explanation:
Assuming all the parts of the pipe are at the same height, we can use continuity equation for incompressible fluids:
(1)
With Q the flux of water that is 
with A the cross section area and v the velocity, so by (1):
subscript 2 is for the smaller section and 1 for the larger section, solving for 
:
(2)
The cross section areas of the pipe are:
but the problem states that the diameter decreases 86% so 
, using this on (2):
Answer:
46,502,000 times
Explanation:
The question asked how many times back <em>and </em>forth, so you divide by 2 (so in half); and if it's 93,004,000 then you divide that by 2 which equals, 46,502,000.
The reason why the reaction takes place faster when the
temperature is higher is that the collision of particles of the object
increases. In order to have a faster reaction, you would need the particles of
the object to get excited and increase its collision to other particles. This
can be achieved through increasing the temperature.
