On april 15, 1912, the luxury cruise liner titanic sank after running into an iceberg. what was the cruise liner's speed when it collided with the ice berg if it had a mass of 4.23 x 10% kg ship and a momentum of 4.9 x 10° kg: m/s?

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

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

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?