what is the rate of heat (in W) lost though the window [round your final answer to zero decimal places]?
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When the indoor temperature of a house is 25°C and the outdoor temperature is -8°C, the inside and outside surfaces of the glass are measured to be 21.8°C and 18.6°C. If the glass has an area of 2.66 m2 and a thickness of 5.88 mm, what is the rate of heat (in W) lost though the window [round your final answer to zero decimal places]?
{kglass = 0.78 W/m∙K}

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- In an experiment to determine the thermal conductivity of a bar of a new metal alloy, one end of the bar is maintained at 0.00°C and the other end at 100. °C. The rectangular bar is 2.25 cm x 2.25cm and a length of 0.500 m. If the rate of heat transfer through the bar is 15.0 J/s, what is the thermal conductivity of the bar to 3 sig fig? Material having thermal.conductivity Area A 51 snoLet's say you park your car outside overnight during the winter, when you first parked your car the temperature was 29.0 degrees C but overnight the temperature drops to -7.0 degrees C. If your initial gauge pressure was 200kPa, what will be the gauge pressure (in KPa) after the change in temperature?A coffee-cup calorimeter contains 50 mL of water with an initial temperature of 24.8°C. An unknown sample with a mass of 1.972 grams was placed inside making the water temperature rise up to 25.5°C. The initial temperature of the metal was 98.3°C. 2. What is the specific heat of the unknown sample?___________ (round off final answer to 2 decimal places)
- CALCULATIONSpecific Heat of Water = 4186 J/kg °C, Specific Heat of Iron = 452 J /kg °C, Specific Heat of Ice = 2093 J/kg °C, Specific Heat of Lead = 130 J/kg °C Latent Heat of Fusion = 3.34 x 105 J/kg, Specific Heat of Copper = 385.1 J /kg.°C Density of iron = 7.874 g /cm3 Density of copper = 8.95 g /cm3 2. Convert 403 K to °F temperature.If 31.0 g of milk at a temperature of 3.95°C is added to a 250-g cup of coffee at a temperature 88.5°C, what is the final temperature of the mixture? Assume coffee has a specific heat of 4.19 x 10° 1/(kg · K) and milk has a specific heat of 3.93 x 103 1/(kg · K). °C
- A 23.6 L aluminum pot filled to the brim with 8.3˚C water. How many litres of water will overflow when the temperature of the water is raised to 75.73˚C [round your final answer to three decimal places]? Note that the pot and the water will be in equilibrium at both temperatures. {volume coefficient of thermal expansion for water = 207 × 10-6 ˚C-1; volume coefficient of thermal expansion for aluminum = 70 × 10-6 ˚C-1}Instructions: Provide the answer in standard scientific notation with SI units that do not have prefixes (except for kg). Provide final answer with correct units and 3 significant figures. Please avoid round off errorNewton's Law of Cooling The temperature of a cup of coffee t min after it is poured is given by the following equation where T is measured in degrees Fahrenheit. T = 65 + 90e−0.068t (a) What was the temperature (in degrees Fahrenheit) of the coffee when it was poured? ____ °F (b) When (in minutes) will the coffee be cool enough to drink (say, 120°F)? (Round your answer to one decimal place.) ______min
- FOLLOWING CONSTANTS ARE GIVEN FOR CALCULATIONS. Specific Heat of Water = 4186 J/kg °C, Specific Heat of Iron = 452 J /kg °C, Specific Heat of Ice = 2093 J/kg °C, Specific Heat of Lead = 130 J/kg °C Latent Heat of Fusion = 3.34 x 105 J/kg, Specific Heat of Copper = 385.1J /kg.'C Density of iron = 7.874 g /cm3 Density of copper = 8.95 g /cm3 3. 5 kg of ice at 0 °C is mixed with 1.5 kg of steam at 100 °C. Calculate the final temperature of the mixture.For item 42: Table D2 Determination of Specific Heat of a Metal Initial mass of metal, mm (g) Initial temperature of metal, Tm,0 (°C) Initial mass of water, mw (g) Initial temperature ofwater, Tw,0 (°C) Final Temperature of mixture, T,(°C) Experimental Specific Heat cal of metal Cexp Actual Specific Heat of cal metal Cact g.Cº. Percentage Error Copper 30 42.) 110 43.) 125 20 21.94 0.9195 % For Item 42: choices for number 42 0.9180 0.9436 0.9513 0.8154 0.8354 For item 43: choices for number 43 0.17 O 0.16 0.15 0.18 0.19Newton's Law of Cooling The temperature of a cup of coffee t min after it is poured is given by the following equation where T is measured in degrees Fahrenheit. T = 65 + 110e−0.053t (a)What was the temperature (in degrees Fahrenheit) of the coffee when it was poured?_________ °F (b)When (in minutes) will the coffee be cool enough to drink (say, 120°F)? (Round your answer to one decimal place.)_______ min