Um joalheiro deseja confeccionar um novo anel a partir de dois outros, um de aço e um de ouro, como mostram as figuras. inicialmente, os anéis separados, de espessura desprezível, estão à mesma temperatura e o encaixe não é possível porque ambos possuem mesmo raio. o joalheiro então aquece os dois anéis juntos por certo tempo, conseguindo depois disso realizar o encaixe. foi possível confeccionar este anel utilizando este procedimento porque o

After a car's engine has been running for a while, if you stand near the car's engine you can often feel heat coming from the engine as a result of a. radiation b. convection c. conduction

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.

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.