Answer:
This is false becuase different object weigh different
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Explanation:
Answer:
Cracking of an egg is a physical change since the egg and the stuff inside does not change but the shape or appearance of the shell changes.
Explanation:
Hope it helps
Answer:
A controlled variable does not change during a experiment
Explanation:
it's c
When a neutron or a proton in the nucleus changes a gamma ray is produced (gamma rays are electromagnetic waves)
When an electron drops from a higher energy level to a lower energy level an electromagnetic wave is give off.
The answer is D. Sound cannot travel in vacuums. Hope this helps homie