What end of the battery does conventional current flow out of? What end of the battery does electron current flow out of?

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented. b)scientists had not completely finalized their results, which took 30 years. c)cigarettes were cheaply available and media channels were very inefficient. d)cigarette manufacturers were trying hard to bring an alternative into the market

The force will determine the acceleration.

What properties of a moving object are used in determining the object's energy of motion