Partial. a penumbral lunar eclipse is when the moon passes through the earths penumbra
Answer:
1.so that we won't do any mistakes and won't have injuries.
Explanation:
yes.
because it is a right thing to use correct tools for correct work.
Answer:

Explanation:
Given data
Average intensity of sunlight on one day I=700 W/m²
Power P=170 W
To find
Area A
Solution
As we know that:

The book Two New Sciences is the book that would later influence Sir Isaac Newton