The equation for the power emitted by the human body is P=5.67 X 10^-8 AT^4 . If the area of the human body is 3.5 m2, what is the power radiated by the human body when the temperature is 25 degrees celsius?

A hot steel plate with a surface area of 1.52 m2 and a constant surface temperature of 166°C is exposed to ambient air at 22°C. If the convection heat transfer coefficient is 15.9 W/m². K, what is the rate of heat transfer (in W) from the plate to the air [round your final answer to zero decimal places]? T. S Air, T, 00

uminum rods are used to make a picture frame. One rod is 55.00 cm long when it is 14.00°C. However, the frame was left outside in the sun, where it was heated to 50.00°C. the length (in cm) of one rod in the frame after it was left outside? 55.05 cm 54.95 cm 45.45 cm 59.75 cm

Roger heats a brass metal cube (specific heat = 375 J/kg•degrees Celsius) to 70.0 degrees Celsius and places the cube into an insulated container of water (specific heat=4182 J/kg•degrees Celsius). He observes that the water temperature increases from 10.0 degrees Celsius to a final temperature of 18.0 degrees Celsius. What is the final temperature of the metal cube?

-1 Heat capacity of ice: 2090 J kg-¹ °C-1 Heat capacity of water (liquid): 4186 J kg-¹ °C-1 Latent heat of fusion: 3.36×105 J kg-¹ -1 Latent heat of vaporization: 2.26×107 J kg -1 Give your answers to at least three significant figures. Your answers must be accurate to 1%. How much heat energy is required to raise the temperature of 625 g of ice from a temperature of -50 °C to a temperature of -27 °C? J Submit Answer How much heat energy is required to raise the temperature of 625 g of water from a temperature of 43 °C to a temperature of 87 °C? J Submit Answer How much heat energy is required to raise the temperature of 625 g of water (initially ice) from a temperature of -50 °C to a temperature of 87 °C? J Submit Answer How much heat energy is required to evaporate 625 g of water which is initially at a temperature of 43 °C? J

The average thermal conductivity of the walls (including windows) and roof of a house in the figure shown below is 4.8 x 104 kW/m - °C, and their average thickness is 20.8 cm. The house is heated with natural gas, with a heat of combustion (energy given off per cubic meter of gas burned) of 9,300 kcal/m3. How many cubic meters of gas must be burned each day to maintain an inside temperature of 27.3°C if the outside temperature is 0.0°C? Disregard surface air layers, radiation, and energy loss by heat through the ground. m3 37.0 5.00 m 8.00 m 10.0 m

Aluminum is often melted down for recycling purposes. Assuming 1 kg of aluminum is at 20 deg C (room temperature), what is the minimum amount of heat needed to melt it to a liquid? The specific heat capacity of aluminum is 899 J/kg°C, the melting point is 660°C, and the latent heat of fusion is 3.97 x 105 J/kg. 972,000 J571,000 J397,000 J500,000 J

A styrofoam container used as a picnic cooler contains a block of ice at 0°C. If 564 g of ice melts in 1 hour, how much heat energy per second is passing through the walls of the container? The heat of fusion of ice is 3.33 x 10° J/kg. Answer in units of W.

A 2.80-kg steel ball at 24.7°C is dropped from a height of 15.4 m into an insulated container with 4.50 L of water at 10.1°C. If no water splashes, what is the final temperature of the water and steel? The specific heat of steel and water is 450 J/(kg·K) and 4186 J/(kg·K) respectively.

A block of copper with mass 0.600 kg is heated to 400. degrees Celsius from 260. degrees Celsius. The specific heat capacity of copper is 387 J/ (kg°C). The heat absorbed by the copper block is  2.88 E5 J 3.25 E4 J 6.04 E5 J 9.29 E4 J