The picture on the left represents the reactants in the equation and the picture on the right represents the products. Does this
reaction follow the law of conservation of matter?
• No,there are different kinds of atoms are present in the products as in the reactants.
•No, because there are new products than the reactants.
•No, because there are not the same number of molecules in the product side as in the reactant side.
•yes, the same number and kind of atoms are present in the products as in the reactants.
• No,there are different kinds of atoms are present in the products as in the reactants.
•No, because there are new products than the reactants.
•No, because there are not the same number of molecules in the product side as in the reactant side.
•yes, the same number and kind of atoms are present in the products as in the reactants.
1 answer:
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Answer:
1keff=1k1+1k2
see further explanation
Explanation:for clarification
Show that the effective force constant of a series combination is given by 1keff=1k1+1k2. (Hint: For a given force, the total distance stretched by the equivalent single spring is the sum of the distances stretched by the springs in combination. Also, each spring must exert the same force. Do you see why?
From Hooke's law , we know that the force exerted on an elastic object is directly proportional to the extension provided that the elastic limit is not exceeded.
Now the spring is in series combination
Fe
F=ke
k=f/e.........*
where k is the force constant or the constant of proportionality
k=f/e
............................1
also for effective force constant
divide all through by extension
1) Total force is
Ft=F1+F2
Ft=k1e1+k2e2
F = k(e1+e2) 2)
Since force on the 2 springs is the same, so
k1e1=k2e2
e1=F/k1 and e2=F/k2,
and e1+e2=F/keq
Substituting e1 and e2, you get
1/keq=1/k1+1/k2
Hint: For a given force, the total distance stretched by the equivalent single spring is the sum of the distances stretched by the springs in combination.