Cold air will sink and hot air will rise. So ACs are placed up higher.
An inclined plane.
A photon.
Due to lower atmospheric pressure at altitude, water will boil at lower temperature.
The lower an objects density the less likely it is to sink in water. Objects with a higher density than water will sink if placed in it while objects with a lower density than water will float if placed in it.
higher or lower than what?
air-conditions are usually placed at a higher level rather than at a lower level.
hot air rises so the air con will cool down the air above so air cons will be placed at a higher level
Hot air rises but not cold air.
Two reasons. One, cold air doesn't rise - it sinks. Two, hot air rises. One of the functions of an air conditioner is to remove humidity from the area being cooled - thus, the hot air will rise into the AC intake.
he said that things can only fall from a higher level to a lower level not from a lower level to higher level
Sea level has been higher and lower than it is currently.
Unlike warm air, cold air does not rise - it falls to the ground. Thus, it's more ideal for an AC system to be placed high rather than low.
elavate
protons move to a higher energy level protons move to a lower energy level electrons move to a higher energy level electrons move to a lower energy level
Because hot air rises.
yes...when placed in a hypertonic solution, it goes shrinks (plasmolysis).
False