Divide velocity by the wavelength.
Energy and mass equivalence
Explanation:
The law of conservation of energy does not apply to nuclear reactions, the law of conservation of mass-energy makes more sense in this regard.
In nuclear reactions mass is transformed into energy. Therefore, it does not conform with the law of conservation of energy.
- According to the law of conservation of energy "energy is neither created no destroyed but they are transformed from one form to another. "
- In nuclear reactions, mass is usually lost. Mass is not conserved.
- But, the mass is converted into energy and we say there is mass and energy equivalence for nuclear reactions.
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Answer: There are 0.5 grams of barium sulfate are present in 250 of 2.0 M 
solution.
Explanation:
Given: Molarity of solution = 2.0 M
Volume of solution = 250 mL
Convert mL int L as follows.
Molarity is the number of moles of solute present in liter of solution. Hence, molarity of the given solution is as follows.
Thus, we can conclude that there are 0.5 grams of barium sulfate are present in 250 of 2.0 M solution.
Answer: #2 : s, solid & #3 : PbBr2
Explanation:
