Durante uma qualquer transformação, a energia total conserva-se apesar do rendimento dessa transformação ser sempre inferior à unidade, de acordo com a 2ª Lei da Termodinâmica. Selecione a única opção que contém os termos que preenchem, sequencialmente, os seguintes espaços. Na Natureza, os processos espontâneos dão-se no sentido de energia útil porque são . 6 pontos da diminuição ... Irreversíveis do aumento ... Irreversíveis do aumento ... Reversíveis da diminuição ... Reversíveis

The frequency of a given region of the electromagnetic spectrum ranges from 3 × 1016 − 3 × 1019 hertz. which type of wave is found in this region? a. x-rays b. ultraviolet rays c. infrared waves d. radio waves

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation