Students observe that in the presence of sunlight, silver chloride (AgCl) will react and create chlorine gas (Cl2) and leave behind solid silver (Ag). Which of the following equations correctly models and balances this reaction and has the correct reaction type? A.
AgCl + sunlight → Cl2 + Ag (synthesis reaction)

B.
2AgCl + sunlight → Cl2 + 2Ag (decomposition reaction)

C.
AgCl + sunlight → Cl2 + Ag (decomposition reaction)

D.
2AgCl + sunlight → Cl2 + 2Ag (synthesis reaction)

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

Aballet student who learns with the of his instructor is demonstrating learning.