Aglass tea kettle containing 500 g of water is on the stove. the portion of the tea kettle that is in contact with the heating element has an area of 0.090 m2 and is 1.5 mm thick.

at a certain moment, the temperature of the water is 75°c, and it is rising at the rate of 3°c per minute.

what is the temperature of the outside surface of the bottom of the tea kettle?

neglect the heat capacity of the kettle, and assume that the inner surface of the kettle is at the same temperature as the water inside.

Why do electron microscopes have higher resolving power than light microscopes?

Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.

Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv