When you first step outside on a cold day, your skin is 70° F (21 C). After you’ve been outside for a while, your skin cools to a temperature of 60° F (16 C). Use this fact to explain why you feel less cold after you’ve been outside for a while.
Q: On a winter day, the air temperature is −5°C, and the humidity is 0.001 kg/m3. (a) What is the…
A:
Q: 16. On a summer day at the equator on Mars, the temperature never rises higher than 50.0 degrees…
A:
Q: the specific heat capacity of iron is 4.5 ' 10² J/kg×⁰C. The heat energy required to heat 5.0 kg of…
A: Given, Specific Heat capacity of Iron (s)=4.5×102J/kg.C0 Mass of Iron (m)=5.0 kg Initial Temperature…
Q: At 26.0 m below the surface of the sea (density = 1 025 kg/m3), where the temperature is 5.00°C, a…
A: The expression for the final volume from ideal gas law,
Q: A woman finds the front windshield of her car covered with ice at -14.3 °C. The ice has a thickness…
A: Given, temperature of the ice in front windshield, T = -14.3 °C thickness of the ice, t = 4.86×10-4…
Q: The center span of a steel bridge is 1,401 meters long on a winter day when the temperature is -5 C.…
A: Given data: Original Length (L) = 1401 meters Initial temperature (T0) = -5 C Final temperature…
Q: 12. How much heat is required to raise the temperature of 2 L of water from 25 °C to 85 °C? The…
A:
Q: How much heat is required to raise the temperature from 30 °C to 300 °C of a iron skillet of mass…
A: Write the expression for the required heat. Here, m represents the mass, c represents the specific…
Q: The high temperatures in Winters the past 10 days are given below: 61 64 65 54 62 63 65 62 61 65 1.…
A: We have been given the high temperatures for 10 days, T=62, 65, 61, 61, 65, 54, 63, 62, 64, 65. We…
Q: 16. On a summer day at the equator on Mars, the temperature never rises higher than 50.0 degrees…
A:
Q: A 0.500 kg aluminum pan on a stove is used to heat 0.250 liters of water from 20.0 C to 80.0 C. How…
A: Given: The volume of the water is 0.25 L. The mass of aluminum is 0.5 kg The initial temperature of…
Q: An incandescent light bulb with a surface area of 0.0130 m2 and an emissivity of 0.9 has a surface…
A:
Q: As the temperature increases, which of the following statements is correct? * (1 Point) b. Specific…
A: Density is m/V (mass over volume); if volume increase, density decrease. Thus an increase of…
Q: Some amount of heat energy is removed from a 9cm X 22cm X 16cm block of ice to cool from 0°C to…
A: Dimensions of ice block = 9 cm , 22 cm , 16 cm Volume of ice block = 9×22×16 cm3= 3168 cm3Initial…
Q: Some amount of heat energy is removed from a 16cm X 26cm X 28cm block of ice to cool from 0°C to…
A:
Q: In a warm room a naked resting person has a skin temperature of 33°C if the room temperature is 29°…
A:
Q: calculate how much radiation is emitted by the Sun and the Earth (assuming the Sun's average surface…
A:
Q: An incandescent light bulb with a surface area of 0.0131 m2 and an emissivity of 0.95 has a surface…
A:
Q: 15. A copper rod is 30 cm long at 20°C. What is the final length of the rod if it is heated to…
A: working formula:- Lt= L0(1+αt) Where , Lt = length at t°C L0= length at 0°C α = linear expansion…
Q: During the first quarter of the year, a specific location in Aurora had an average air temperature…
A: In this question we have to find the Average Temperature In La Trinidad. Please give positive…
Q: A shower is 11.0 m from the hot water heater. The copper pipe has a radius of 1.11 cm and a…
A: From the heat loss formula, θt=kAT2-T1dx Where, θ/t be defined as the rate of heat loss. k be…
Q: When you first step outside on a cold day, your skin is 70° F (21 C). After you've been outside for…
A: This is due the fact of exchange of temperature (thermal equilibrium).
Q: A piece of aluminum whose mass is 10 kg has a specific heat capacity of 900 J/kgx°C and is warmed by…
A:
Q: A piece of aluminum whose mass is 10 kg has a specific heat capacity of 900 J/kg×°C and is warmed by…
A: Given: mass of the aluminum (m) = 10 Kg specific heat capacity of aluminum (c) =…
Q: Some amount of heat energy is removed from a 6cm X 20cm X 34cm block of ice to cool from 0°C to…
A: Given: Specific heat of ice is Cv=2093 J/kg°C Density of ice is d=920 kg/m3 Volume of the ice cube…
Q: An aluminum tea kettle with mass 2.98 kg and containing 3.49 kg of water is placed on a stove. If no…
A:
Q: An incandescent light bulb with a surface area of 0.0145 m2 and an emissivity of 0.87 has a surface…
A:
Q: Calculate the rate of heat transfer by radiation from a car radiator at 110°C into a 50.0ºC…
A: Given: The final Temperature is, Tf= 110°C =383 KThe intial Temperature is, Ti = 50°C = 323 KThe…
Q: The area-average mass of the upper one third of the ocean is about 1x106 kg/m2. The energy required…
A:
Q: When you first step outside on a cold day, your skin is 70° F (21 C). After you've been outside for…
A: Here it is given that our body temperature falls from 21°C to 16°C after going outside. Now we will…
Q: An incandescent light bulb with a surface area of 0.0108 m2 and an emissivity of 0.87 has a surface…
A: Given that, Surface area of the bulb(A)= 0.0108 m² Emissivity (e)= 0.87 Temperature of the surface…
Q: To convert a temperature from one scale to a temperature on the other use the equation F=95C+32,…
A: Given data: Temperature in Fahrenheit scale TF = 112°F Required: Temperature in Celsius scale
Q: A 240.0 g china serving bowl is warmed 64.7°C when it absorbs 3.5 kcal of heat from a serving of hot…
A:
Q: Some amount of heat energy is removed from a 5cm X 12cm X 37cm block of ice to cool from 0°C to…
A:
Q: According to Newton’s law of cooling, the rate at which a substance cools in air is directly…
A: The answer is 33.59min option (a) is right
Q: If 29.5 g of milk at a temperature of 4.20°C is added to a 240-g cup of coffee at a temperature…
A: We have milk of mass m1=29.5 g at temperature T1=4.2oC=277.2 K added to coffee of mass m2=240 g and…
Q: A kettle brings 2.15 kg of water at 34.9˚C to steam at 110˚C. How much heat does this take?…
A:
Q: A plastic cup of negligible mass contains 0.280 kgkg of an unknown liquid at a temperature of 36.0…
A: Solution:-
Q: Some amount of heat energy is removed from a 10cm X 20cm X 43cm block of ice to cool from 0°C to…
A: Given that -- Some amount of heat energy is removed from a 10cm X 20cm X 43cm block of ice to cool…
Q: You heat up a piece of hot metal with an emissivity of 0.1 until it glows. If the temperature of the…
A: Given data: Emissivity (e) = 0.1 Temperature (T) = 3000 K Surface Area (A) = 0.1 m2 Required: The…
Q: An incandescent light bulb with a surface area of 0.0128 m2 and an emissivity of 0.87 has a surface…
A: Given: The surface area of the bulb is 0.0128 m2. The emissivity is 0.87. The surface temperature of…
Q: Which of the following expressions is true? * Fahrenheit temperature = (Celsius temperature - 32) x…
A: In the given question, We have to find the true expression.
Q: Identify whether the given situations are examples of conduction, convection or radiation. a.…
A: a. Solar ultraviolet radiation, precisely the process that determines the Earth's temperature. It is…
Q: An aluminum tea kettle with mass 1.50kg and containing 1.80kg of water is placed on a stove. If no…
A:
Q: How much heat is conducted in one hour through an iron plate 2.0 cm thick and 100 cm2 in area, the…
A: Given: The thickness of the plate is 2 cm. The area of the conducting plate is 100 cm2. The…
Q: If we use 67 W of power to heat 148 g of water, how long will it take to raise the water temperature…
A: Given data:- Mass = 148 grams = m…
Q: If the temperature is 5 degrees Celcius in the high desert with an altitude of 3500 meters. What is…
A:
Q: ay - Lussac's Law P1 / T1 = P2 / T2 If a gas in a closed container is pressurized from 15.0 atm to…
A: P1=15 atmP2=16 atmT1=25oC= 25+273= 298 K T2= T
- When you first step outside on a cold day, your skin is 70° F (21 C). After you’ve been outside for a while, your skin cools to a temperature of 60° F (16 C). Use this fact to explain why you feel less cold after you’ve been outside for a while.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- On a hot Saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 24°C. At noon the air conditioner is turned off, and the people go home. The temperature outside is a constant 34°C for the rest of the afternoon. If the time constant for the building is 5 hr, what will be the temperature inside the building at 3:00 P.M.? At 5:00 P.M.? When will the temperature inside the building reach 26°C? RIB °C. At 3:00 P.M., the temperature inside the building will be about (Round to the nearest tenth as needed.)On a hot Saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 24°C. At noon the air conditioner is turned off, and the people go home. The temperature outside is a constant 34°C for the rest of the afternoon. If the time constant for the building is 5 hr, what will be the temperature inside the building at 4:00 P.M.? At 6:00 P.M.? When will the temperature inside the building reach 26°C? At 4:00 P.M., the temperature inside the building will be about (Round to the nearest tenth as needed.) 1°C.On a hot Saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 24°C. At noon the air conditioner is turned off, and the people go home. The temperature outside is a constant 32°C for the rest of the afternoon. If the time constant for the building is 3 hr, what will be the temperature inside the building at 3:00 P.M.? At 5:00 P.M.? When will the temperature inside the building reach 26°C? At 3:00 P.M., the temperature inside the building will be about °C. (Round to the nearest tenth as needed.)
- One suggested treatment for someone who has had a stroke is to immerse the patient in a 0˚C ice water bath to lower body temperature, which prevents damage to the brain. . In a series of tests, patients were cooled until their internal temperature reached 32.0˚C. To treat a 70 kg patient, what is the minimum amount of ice (at 0˚C) that you need in the bath to keep the temperature at 0˚C? The specific heat of the human body is 3480 J / (kg˚C) and reminds us that the normal body temperature is 37˚C. The latent heat of fusion for water is 334 kJ / kg. (please show steps, formula and explanation for more understanding)Homes are often insulated with fiberglass insulation in their walls and ceiling. The thermal conductivity of fiberglass is 0.040 W/(m⋅K). Suppose that the total surface area of the walls and roof of a windowless house is 310 m2 and that the thickness of the insulation is 19 cm. At what rate does heat leave the house on a day when the outside temperature is 30 ∘C colder than the inside temperature?Express your answer in kilowatts.During the time when a man had flu he ran a fever 2.0°c above normal. His body temperature was 39°c instead of the normal 37°c. Assuming that the man has a mass of 80kg and that the human body is mostly water, how much heat is required to raise his temperature?(take specific heat capacity of liquid as C=4186J/kg. °c)
- You wish to heat 20 kg of water from 40°C to 80°C. How many kcal of heat are necessary to do this? To how many kJ does this correspond? You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 90°C and the water has an initial temperature of 15°C, what is the final temperature of the system? The specific heat capacity of the steel is 0.15 cal/g•°C. Suppose that the 1.3 km span of the Golden Gate Bridge had no expansion joints. Calculate how much longer the bride would be if the temperature of the bridge increases by 25°C.One of the possible mechanisms of heat transfer in human body is conduction through body fat. Suppose that heat travels through 0.03 m of fat in reaching the skin, which has a total surface area of 1.7 m? and a temperature of 34°C. Find the amount of heat that reaches the skin in half an hour, if the temperature at the body, interior is maintained at the normal value 37°C ? Thermal conductivity of body fat is k = 0.2 J/sm°C. The air in a room is at 25°C and outside temperature is 0°C.*13. A cubical piece of heat-shield tile from the space shuttle measures 0.10 m on a side and has a thermal conductivity of 0.065 J/(s · m · C°). The outer surface of the tile is heated to a temperature of 1150 °C, while the inner surface is maintained at a temperature of 20.0 °C. (a) How much heat flows from the outer to the inner surface of the tile in five minutes? (b) If this amount of heat were transferred to two liters (2.0 kg) of liquid water, by how many Celsius degrees would the temperature of the water rise?
- On a cold winter morning you step outside to get into your car and drive to work. Your car's windshield is covered with ice at −15.3°C. If the area of the windshield is 1.40 m2 and it takes 1.97 105 J of heat to melt the ice, how thick was the ice covering the windshield? The latent heat of fusion of ice is 334 kJ/kg, the specific heat of ice is 2092 J/(kg · °C) and its density is 917 kg/m3.Consider a person standing in a room at 20°C with an exposed surface area of 1.7 m2. The deep body temperature of the human body is 37°C, and the thermal conductivity of the human tissue near the skin is about 0.3 W/m K. The body is losing heat at a rate of 150 W by natural convection and radiation to the surroundings. Taking the body temperature 0,5 cm beneath the skin to be 37°C, determine the skin temperature of the person.On a cold winter morning you step outside to get into your car and drive to work. Your car's windshield is covered with ice at −14.3°C. If the area of the windshield is 1.40 m2 and it takes 1.77 105 J of heat to melt the ice, how thick was the ice covering the windshield? The latent heat of fusion of ice is 334 kJ/kg, the specific heat of ice is 2092 J/(kg · °C) and its density is 917 kg/m3 (answer in m).