On cold, clear nights horses will sleep under the cover of large trees. How does this help them keep warm?
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Q: Why do you feel uncomfortably warm on a hot and humid day?
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Q: For thermal energy to move from a cold object to a warm object, what must happen?
A: In natural flow, heat flow from hot object to cold object, without aid of any device.
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Q: You are cold, so you cover yourself in a blanket. A half hour later, you feel much warmer. Explain…
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- On cold, clear nights horses will sleep under the cover of large trees. How does this help them keep warm?Dogs keep themselves cool by panting, rapidly breathing air in and out. Panting results in evaporation from moist tissues of the airway and lungs, which cools the animal. Measurements show that, on a 35°C day with a relative humidity of 50%, a 12 kg dog loses 1.0 g of water per minute if it ispanting vigorously. What rate of heat loss, in watts, does this achieve?In a laboratory, bunsen burner is used to increase the temperature of lime from 10 °C to 50 °C with the thermal energy of 80000 J. If the mass of the lime is 20 kg the specific heat capacity in of the lime would be 25 J/kg C° 50 J/kg C° 75 J/kg C° 100 J/kg C° No answer
- Loose-fitting white clothing covering most of the body is ideal for desert dwellers, both in the hot Sun and during cold evenings. Explain how such clothing is advantageous during both the day and night.Thank you! The thermal resistance of a seal's fur and blubber combined is 0.380 K/W. If the seal's internal temperature is 37.5°C and the temperature of the sea is about O°C, what must be the heat output of the seal in order for it to maintain its internal temperature?You are cold, so you cover yourself in a blanket. A half hour later, you feel much warmer. Explain in detail where the heat came from, and how the blanket helped.