(40 points pls help ASAP)Directions Label the model with letters e, n, and p to show its parts. The letter e stands for electron, n for neutron, and p for proton. Then complete each sentence
about the model by writing an answer on the line.
Helium
1. The model shows (a, an)
of helium.
2. The nucleus consists of
and
3. The particles labeled p are
4. The particles labeled e are
5. The particles labeled n are

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

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

What is a possible result of higher air temperature caused by global warming