Answer: External forces are forces caused by external agent outside of the system. Internal forces are forces exchanged by the objects in the system. To determine what part should be considered external and internal, mechanical system should be clearly defined.
Explanation:
We have all noticed that if we hike from a place with low elevation and go up at a place with high elevation, that the temperature is gradually dropping, thus giving us a clue that the lower places are warmer, while the higher places are cooler. The reason for this, even though both the places with low and high elevation are located in the troposphere, thus the same atmospheric layer, is that the density of it is not the same everywhere. The troposphere has the highest density at its lowest points, and as the height increase the density decreases. Since the higher parts are less dense, that means that there are less gases, thus there are less molecules that are further apart from each other. This results in lesser absorption of heat, so this parts are cooler, while the lower parts are warmer because the troposphere is denser, there's more molecules that are also closer to each other, thus they absorb more heat.
Answer:
City B will have the highest annual range of temperature
Explanation:
City B will have a higher annual temperature than city A. <u>It is because the northern hemisphere is mainly covered with landmasses but the southern hemisphere is mostly covered by the water body</u>. So there is <u>more absorption of heat on the ground surface and the landmass area</u>. The oceans when heated it reflects some heat energy back into the atmosphere, and some of it is transferred to the land area by the sea breeze.
These events ultimately lead to an increase in the heat amount in the northern hemisphere.
Answer:
West Quoddy Head.
Explanation:
West Quoddy Head is the easternmost point, located 2,507 miles from the geographic center of the United States. The westernmost point is Cape Wrangell, Alaska, which is 3,625 miles west of center.
The initial factor is the moon's size, which is relatively small compared to the Earth, meaning it has less gravity. This means that more gas is allowed to escape from the surface, which means that there is no atmosphere. This leaders to highly fluctuating temperatures.
