When iron metal reacts with sulfuric acid, it produces iron (III) sulfate and hydrogen gas. Balance the equation: Fe + H2SO4 → F
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"20 J" is the "Potential Energy" of "vase" on the table.
<u>Explanation</u>:
The body possess some energy according to the position of the object that is the when an object is placed at a height it stores some energy it is called "Potential Energy".
Formula used to calculate the "Potential Energy" is
Where, "m" is mass of vase is given that 2 kg, "g" is acceleration due to gravity is and "h" is height of the object where it placed is 1 m.
Substitute the given values in the formula,
Potential energy of the vase =
Potential energy of the vase = 20 J