Will wrapping a bottle in a wet cloth produce a cooler bottle than placing the bottle in a bucket of cold water?
A) The cloth of cold water will cool the bottled water down through the transfer of thermal energy to the cloth, and then insulate it from being warmed by the surrounding air.
B) A bottle in a bucket of water will be cooler since the thermal energy is transferred to billions of water molecules in the bucket of water.
C) A bottle wrapped in wet cloth will cool by the evaporation of liquid from the cloth. As evaporation progresses, the average temperature of the liquid left behind in the cloth can easily drop below the temperature of the cool water that wet it in the first place.
D) The cloth can cool the bottle of water down, but only until it reaches the temperature a few degrees below the surrounding atmosphere. After that, evaporation and condensation will reach equilibrium between the cloth and air.
Question 2
How do most antiviral agents work?
A) They disrupt protein synthesis in infected cells.
B) They inhibit folic acid production.
C) They soften the cell membrane of the virus.
D) They puncture the cell membrane of the virus.
E) They cause the DNA to become kinked and prevent growth of infected cell.
Four different spindle attachments produce four second-division segregation patterns
Drink from the bottle
Kente prestige cloth (detail), Ghana, Ewe peoples.
Weak valve springs will produce a normal reading at idle, but as engine speed increases, the needle ...
Hydrogen burns to produce energy and water
Farmers’ markets provide fresh, local produce to consumers