Match each force with its corresponding vector arrow. 3
3
:: Weight
: Friction
:: the Normal force
:: component of Weight acting against the plane
:: component of Weight acting along the plane

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false