burning candle is carried away by (choose one) conduction, convection, or radiation

#6. My buddy is starting to get hypothermic (body temperature 306 K) during an epic backcountry ski adventure. Since I'm quite warm (body temperature 310 K), I decide to get in a sleeping bag with him to try and warm him up. What heat transfer mechanism will be most responsible for heating him up? For simplicity, ignore any internal temperature differences across my body (that is, assume my skin temperature is also 310 K). Use num- bers to support your answer (for human skin, you can use the following values: surface area A = 1.50 m², emissivity € = 0.970, thickness d = 0.0250 m, thermal conductivty 0.200 ms.K) J

You are standing in Death Valley, California on a summer afternoon, and the temperature is well above 100 degrees.  You place a piece of asphalt (Specific Heat = 0.915 J/g°C) and a piece of concrete (Specific Heat = 0.879 J/g°C) on the ground next to one another.  If you were to crack an egg onto each surface, which one would be more likely to fry the egg completely?  Please explain.

Which of the following is an example of heat transfer by radiation? When you walk on your tiled, kitchen floor, your feet feel cold. Someone warming their hands next to a fire. Touching a cold window with your warm hands. Someone warming their hands above a fire. Heat transfer through hot fluids rising and cold fluids sinking in a pot of boiling water.

The process of heat radiation is the ONLY method of heat transfer that can occur under water.through space.through the air.through a solid.

Calculate the amount of heat needed to change the temperature of 2 kg of steam from 110 0C to -4 0   Use the following in working this question: Specific heat of water = 1 kcal/kg.0c Specific heat of ice = 0.5 kcal/kg.0c Specific heat of steam = 0.5 kcal/kg.0c Latent heat of fusion = 80 kcal/kg Latent heat of vaporization = 540 kcal/kg

After a short walk a student has lost 230 kcal of heat thanks to the evaporation of 418g of water through his skin. Recalling that 1 kcal = 4180J What is the latent vaporization of water? heat of CA A) 2300 cal/kg B 2300 J/kg с) 2300 кто /ид D) 2300 kcal/kg 30 kJ / kg E230

Your car’s radiator is made of steel and is filled with coolant. You fill the radiator to the very top with coolant, then drive off without remembering to replace the cap. As the coolant and steel radiator heats up, will the level of coolant drop or rise and overflow? why? what is a radiator is and what purpose does it serves in a car?  Here is a good start: https://youtu.be/y5p31F_dVJU

As ice melts in a drink, is the heat gained by the ice equal to the heat lost by the drink? If it is in an insulated cup (like styrofoam)? I tried to calculate the values and what I got for the heat lost by the drink was a much larger number than heat gained by the ice after it melts