1. a record player makes 45 revolutions per minute. what is its period?
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Ответ:
Ответ:
Linear expansivity is a property specific to a material and hence is constant.
Explanation:
Linear expansivity of the material will be constant irrespective of the shape and size of the material because it is a specific property.
It is a tendency of a material to expand in response to the increase in temperature.
The mathematical expression is given as:
where:
L= initial length of the specimen