Answer:
infra red radiation is used
Answer:
Isolated or Closed system, both are correct
When someone stands against a locker and is does not moving at all, then there will be no displacement and since displacement = 0
Work done also becomes equal to zero.
Work done is usually defined as change in energy. Since the work done is zero there has been no energy used.
Answer:
The answer of this is question is A.
If Calcium lost two electrons, it would have the same number of electrons as Argon which has 18 electrons.