The anomalous expansion of water refers to the fact that water, unlike most substances, expands when it freezes. The density of water increases as temperature decreases but reaches a maximum at 4° C then begins to expand.
When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%.
C. 70 inches is the answer
Answer:
a = 0.13m/s²
Explanation:
Given parameters:
Weight of horse trailer = 150kg
Distance covered = 250miles
Force applied on trailer = 20N
Unknown:
Acceleration of trailer = ?
Solution:
According to newton's second law of motion,"the acceleration of a body is directly proportional to the force on it and inversely proportional to the mass" .
Mathematically;
F = m x a
where f is the force
m is the mass
a is the acceleration
Input the parameters and solve;
20 = 150 x a
a = 0.13m/s²
Answer: D. Energy released from atoms.
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