Place a Kilogram Block of Iron at 40°C into a Kilogram

question 89

Multiple Choice

Place a kilogram block of iron at 40°C into a kilogram of water at 20°C and the final temperature of the two becomes

• A)less than 30°C.
• B)at or about 30°C.
• C)more than 30°C.

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Definitions:

Suprachiasmatic Nucleus

A small region in the brain's hypothalamus responsible for controlling circadian rhythms.

Biological Clock

A mechanism in living organisms that controls the timing of various physical functions, such as sleep and wake cycles, hormone release, and other bodily functions.

Retina

The light-sensitive layer of tissue at the back of the inner eye, responsible for converting light into neural signals for vision.

Time Zones

Geographically based divisions where the local time is adjusted from the standard time, primarily influenced by the rotation of the earth relative to the sun.