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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We can calculate the length of each spring by using the relationship:
where
F is the force applied to the spring
k is the spring constant
x is the length of the spring (measured with respect to its rest position)
Re-arranging the equation, we have
The force applied to both spring is F=60 N. Spring A has spring constant of k=4 N/m, therefore its length with respect to its rest position is
Spring B has spring constant of k=5 N/m, so its length with respect to its rest position is
Therefore, the correct answer is
<span>D.Spring A is 3 m longer than spring B because 15 – 12 = 3.</span>
where
F is the force applied to the spring
k is the spring constant
x is the length of the spring (measured with respect to its rest position)
Re-arranging the equation, we have
The force applied to both spring is F=60 N. Spring A has spring constant of k=4 N/m, therefore its length with respect to its rest position is
Spring B has spring constant of k=5 N/m, so its length with respect to its rest position is
Therefore, the correct answer is
<span>D.Spring A is 3 m longer than spring B because 15 – 12 = 3.</span>