Astronauts on the International Space Station a busy schedule. Every day they at 7:00 GMT. From 7:00 to 8:00, they wash up and breakfast. At 8:00 in the morning, they to Ground Control in their countries. After they talk to Ground Control, their workday . The astronauts (not) the same thing every day. Their schedules change every week. The astronauts do not work all the time. Each day they for an hour in the morning and an hour in the afternoon to keep themselves fit. After dinner, they free time for an hour. Then, it time to go to sleep. Sometimes this (not) easy because the sun rises and sets 16 times each day on the space station!

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

What is created when solids,liquids,an gases mix with one another

Which sound characteristic is not affected by the relative motion of an object