Question

if sienna is using the gymnasium floor to cool off, which position will lower her skin temperature the quickest? standing sitting flat on her back hands and feet touching the floor

Explanation:

Step1: Understand heat transfer principle

Heat transfers from a warmer object (Sienna's body) to a cooler object (gymnasium floor) via conduction. The rate of heat transfer depends on the surface - area in contact.

Step2: Analyze each position

• Standing: Minimal contact area between feet and floor.
• Sitting: More contact than standing (buttocks and legs), but still limited.
• Flat on her back: Larger contact area (back, legs).
• Hands and feet touching the floor: Even larger contact area compared to the previous positions as both hands and feet (more body parts) are in contact with the floor.

Answer:

Hands and feet touching the floor