Final answer:
Hypothermia occurs when the body's core temperature drops below normal, leading to slowed bodily functions. Vigorous shivering is a response to generate heat, but the specific duration to raise body temperature by 2.00°C for a 76.0-kg person cannot be determined without additional information on heat capacity and shivering heat generation.
Step-by-step explanation:
Understanding Hypothermia
Hypothermia is a medical condition characterized by a dangerous decrease in core body temperature, generally below 34.4 degrees Celsius (94 degrees Fahrenheit). It results in a slowed rate and strength of heart contractions and can have severe health implications, including death, if not properly treated. The body responds to hypothermia by shivering, a mechanism to generate heat, and breaking down stored energy.
When a person suffering from hypothermia shivers vigorously, heat is generated to raise their core body temperature. However, for a 76.0-kg person to increase their body temperature by 2.00°C, we need to understand the amount of energy required and over what period this temperature increase can be achieved, assuming all other forms of heat loss or gain are balanced.
To calculate the duration necessary for this temperature rise, it would be essential to know the specific heat capacity of the human body, the amount of heat generated by shivering, and any external factors influencing heat gain or loss. Without this information, it is not possible to provide a precise answer to how long it will take for a person's body temperature to increase by 2.00°C.