Answer
the concentration of electron/ volume (n) = 8.5 × 10²⁸ /m³
the drift velocity of electron


v = 2.615 × 10⁻⁴ m/s
time require is


t = 3231.35 s
The lack of an atmosphere means convection cannot happen on the moon. Therefore, there is no form of heat dissipation on regions in direct sunlight. In addition, the lack of an atmosphere means there is no greenhouse effect on the moon. This is why regions facing away from sunlight are very cold.
Answer:
41.1 ÷ 40.0
Explanation:
Did you learn about Newton
What is a travelling wave and a standing wave? What are the differences between both of them?
Answer: First of all we have to understand that a traveling wave is an organized disturbance traveling with a well defined wave speed. On the other hand standing waves are the combination of period waves with their reflected waves creating double sided waves. The differences between them is that standing waves have nodes and antinodes while a traveling wave does not.
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