Answer:
true
Explanation:
ionic compounds do not form molecules
Thus, astronomers can<span> identify what kinds of stuff are in </span>stars<span> from the lines they find in the </span>star's spectrum<span>. This type of study is called spectroscopy. The science of spectroscopy is quite sophisticated. ... The spectral line also </span>can tell<span> us about any magnetic field of the </span>star<span>.</span>
I believe the answer to be no.
Because it is fully parallel with the law of Conversation of Energy.
But even so,according to the second law, some, or a even a small amount will be transformed(internal or thermal)
Answer:
30 N
Explanation:
there are two forces act on the bar:
- weight of 1.5 kg mass, w = mg = 15 N
- weight of the bar, wb
for balance,
w * Lw = wb * Lwb
Lw = length of bar from the mass to the pivot
Lwb = lenght of bar from the center of the bar to the pivot
15 * 20 = wb * (50-20)
300 = wb * 30
wb = 300/30 = 30 N
Answer:
the octate rule says that electron after completing all the valency of the element doesnot goes as 9 but continues next round after completing the next octat then the first shell completes the all electron valency .thanks if you dont understand then please comment l will try to solve your confusion