Which would increase the speed of a sound wave? check all that apply
a wave passes from a solid to a liquid while remaining the same temperature
the medium increases in temperature while remaining in the same phase
the medium decreases in temperature while remaining in the same phase,
awave passes from a gas to a liquid while remaining the same temperature
awave passes from a liquid to a gas while remaining the same temperature

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

=force × distance a. work b. velocity c. pressure d. momentum

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?