A calorie is a unit of heat and it equals 4.2 J, where 1 J = kg m2s-2. A distant civilisation employs a system of units in which the units of mass, length and time are α kg, β m and γ s. Also J' is their unit of energy. What will be the magnitude of calorie in their units?

Question:

Example 1.4A calorie is a unit of heat and it equals 4.2 J, where 1 J = kg m2s-2. A distant civilisation employs a system of units in which the units of mass, length and time are α kg, β m and γ s. Also J’ is their unit of energy. What will be the magnitude of calorie in their units?

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