A gust of wind blows an apple from a tree. As the apple falls, the force of gravity on the
apple is 9.12 N downward, and the force of
the wind on the apple is 1.63 N to the right.
What is the magnitude of the net external
force on the apple?
Answer in units of N.

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

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

Drag each item into the proper state of matter category.