Ina freezer, the temperature of an object decreases 2°C each hour . initially the temperature of the object was 28°C . find the temperature of an object after 9 hours.
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Answer:
Initial Temperature = 28°C
Rate of cooling = 2°C / hour
Time = 9 hours
Temperature reduced = Rate of cooling × Time
= 2 × 9
= 18° C
Therefore, Final Temperature
= 28° - 18° = - 10° C
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