It should be 12 N. the force of the book on the table should be the same as the force of the table on the book.
Answer:
a) Yes
b) No
Explanation:
In the first case, part a, yes we can say for certainty that cylinderical symmetry holds. Why so? You may ask. This is because from the question, we are told that the length of the rod is 300 cm. And this said length is longer than the distance to the point from the center of the rod, which is 5 cm.
In the second half of the question, I beg to disagree that cylindrical symmetry holds. Again, you may ask why, this is because the length of the rod in this case, is having the same order of magnitude as the distance to the center of the rod. Thus, it is not symmetrical.
Answer:

Explanation:
From the Question We are told that
Initial Force 
Final Force 
Distance between the front and rear wheels \triangle x=3.20 m
Since

Therefore


Generally the equation for The center of mass is at x_2 is mathematically
given by




Answer:
<u>thermal power stations</u>
Explanation:
these resources are burned to produce the electricity.
It’s frequency is high and microwaves can pass through the atmosphere of the Earth.