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jonny [76]
4 years ago
7

If a 65 kilogram student exerts a force with a magnitude of 100 N on a 100 kilogram desk the magnitude of the force that the des

k exerts on him is ____. Question 4 options: A.100 N more than his weight B. 100 N less than his weight C. 100 N D. 0 N
Chemistry
1 answer:
mrs_skeptik [129]4 years ago
4 0
C. The action/reaction law states that a force is equal in both directions.
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3 years ago
If 0.507J of heat leads to a 0.007 degree C change in water, what mass is present?
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Answer:

17.3 g

Explanation:

<u>Given the following data;</u>

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Mathematically, Heat capacity is given by the formula;

Q = MCT

Where;

  • Q represents the heat capacity or quantity of heat.
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Making "M" the subject of formula, we have;

Mass, \ m = \frac {Q}{CT}

Substituting the values into the formula, we have;

Mass, \ m = \frac {0.507}{0.007*4.2}

Mass, \ m = \frac {0.507}{0.0294}

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