Here is the answer to your question
Water boiling is an example of a physical change. The rest are chemical changes.
Hope that helps!!
Answer:

Explanation:
The torque applied by a force can be calculated as

where
F is the magnitude of the force
d is the length of the arm
is the angle between the direction of the force and the arm
In this problem, we have
F = 15 N
d = 2.0 m

Substituting into the equation, we find

Answer:
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Explanation:
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