What is natural convection? Convection where the velocity is from an outside agent. Convection where the fluid doesn't move. Convection which happens above a body or water. Convection where the fluid motion is due to a change in local bouyance in the fluid.

Q: Q3 - The rear window of an automobile is defogged by passing warm air over its inner surface If the…

A: The temperature passing at the inner surface is given as, T∞i=40 oC The corresponding convection…

Q: Water will boil spontaneously in a vacuum- on the surface of the Moon, for example . Could you cook…

A: The water boils in a vacuum at the moon’s surface at the room temperature by absorbing less amount…

Q: Q3) Steam at 100 °C is passed into a beaker containing 0.020 kg of ice and 0.10 kg of water at 0°C…

A: temprature of steam =1000C mass of ice =0.2kg mass of water =0.1 kg temprature of water and ice =00…

Q: A vapor is in equilibrium with its liquid and in an enclosed container. Choose the true statement…

A: If there is a difference in vapour and liquid temperature, there would be exchange of energy in the…

Q: One cool 5 degrees Celsius morning, Mason lays a brick sidewalk up to his house, placing the 25.0 cm…

A:

Q: The air in a hot-air balloon can be heated only so much; the temperature of the gas inside the…

A: A hot air balloon consists of a nylon envelope. The hot air inside the balloon is less dense than…

Q: 13) What is the volume of 8 moles of an ideal gas at p=latm and T=42°C? A) 0.069m B) 0.021m3 C)…

A:

Q: 2) Two bottles at the same temperature contain the same kind of gas. Bottle B has twice the volume…

A:

Q: Most bridges contain interlocking gates that allow the bridge to expand and contract with the change…

A: Given data:  Original Length (L0) = 1350 m Initial temperature (Ti) = 0°C Final temperature (Tf) =…

Q: If you hold one end of a piece of metal against a piece of ice, the end in your hand soon becomes…

A: When two objects with temperature gradient are brought in contact with each other, heat flows from…

Q: What is the rms speed of air molecules (O2 and N2) at room temperature (20°C)?

A:

Q: 5. Soon after the Earth formed, heat released by the decay of radioactive elements raised the…

A: Given: Temperature, T1 = 300 K                         T2 = 3000 KAverage coefficient of volume…

Q: A plate of iron at 200C has 2x2m2. If the temperature is raised to 100oC and the coefficient of…

A:

Q: You can determine wind direction by wetting your finger and holding it up in the air. Explain.

A: The sensation of feeling cold is due to the removal of the heat from the body. The transfer of heat…

Q: 5) a. We then attach the 5 kg and 10 kg cubes to each other with a cable, and we will raise the ramp…

A:

Q: What is the coefficient of volume expansion for a material that has a coefficient of linear…

A: Given: The coefficient of the linear expansion is 1.5x10-5 /oC.

Q: Assuming steady state equilibrium, i. Plot a graph of temperature versus depth ii. From the values…

A: The heat flux is given by: where k {\displaystyle k} is the thermal conductivity.

Q: Snakes and other reptiles that live on land warm up in the sun. Their bodies can reach temperatures…

A: Heat transfer process like convection and conduction are effective in water .So , heat transfer…

Q: Q9. The temperature of a 1 km long copper wire has been increased by 50° C, then its length will be…

A:

Q: How does a coffee thermos control convection so as to keep coffee hotter longer? A) Conduction is…

A: Explanation of convection of heat:The convection of heat takes place through the moving liquid or…

Q: Most cars needed tires filled to 32.0 - 35.0 psi. Your tires are filled to 32.1 psi at the beginning…

A: As per guideline we are suppose to do only 1 question from multiple questions please post them…

Q: 20. "Magic Juice" is 50 % liquid carrot juice and 50% water. A vendor buys agic juice at P 100…

A:

Q: 1. Air at 1 atm and 20°C is flowing over the top surface of a 0.5-m long thin plate. The airstream…

A: Air temperature (Tair) = 20°C = 20 + 273.15 K = 193.15 KSurface temperature (Tsurface) = 180°C = 180…

Q: 17) What is the change in area (in cm²) of a 50.0 cm by 140 cm automobile windshield when the…

A: 17. The initial area is

Q: Density is mass divided by volume (d= m+v. Based on the graph, what happens to a fixed mass of water…

A: Given, Graph of density vs temperature Density=mass/volume

Q: A camper is boiling 947 mL of water over a fire to prepare their dinner. The campsite is at sea…

A: Given:volume of water, V = 947 mL = 0.947 Linitial temp of water, Ti = 15.1oCtime taken to boil, 8…

Q: I fill my car tires to 32 PSI in the summer, when the temperature is 25° C. In the winter, the…

A: The given data we have: Initial pressure: 32PSI =220632 Pa Initial temperature: 25oC=298K Final…

Q: Calculate the increase in volume of 846 cm³ of mercury when its temperature changes from 6°C to…

A: Volume, V=846cm3 Initial temperature, Ti=6oC Final temperature, Tf=35oC Volume coefficient of…

Q: A cat's water dish is left outside overnight, where it fills to the brim with water during a…

A: Given The dish holds V0=252 mL of water. Increase in temperature is ∆t=11.6°C Coefficient of volume…

Q: ** 11. The tires on a race car are filled with air at 10° C, to a gauge pressure of 35 lb/in? (about…

A:

Q: The gas having average speed four times as that of SO2 (molecular mass 64) is ___________ a)…

A: The average speed v¯ of a gas is given by, v¯ = 8RTπM where, R is the gas constant, T is the…

Q: Does water boil at higher temperatures at higher pressures? Explain.

A: Water boil at higher temperatures at higher pressures

Q: Given

A: In the given question they need a  reason why most of the heat is in the climate system is resides…

Q: 10) The temperature of a rigid (i.e., constant-volume), sealed container of gas with pressure 3 Pa…

A:

Q: A child's toy has a solid plastic disc of radius 10cm that can be rotated about its center. Child A…

A: Given: r=10cm =0.10m, F1 = 30N, F2 = 20N, α =8.33rad/s2 a)ζnet =(F1+F2)r Iα =(F1+F2)r I = (F1+F2)r/α…