As twoo boats approach the marine ,the velocity of boat 1 relative to boat 2 is 2.15m/s in a direction 47 easy of north if boat 1 has a velocity that is 0.775m/s due north what is the velocity of boat 2

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

Which notation is used to represent an alpha particle? a. b. c. d.

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?