At t = 0.0 s, a runner is moving forward (in the positive direction along the x-axis) at a
speed of 7.0 m/s. for 2.0 s the runner accelerates to his left at 0.50 m/s2
and backward
at 1.0 m/s2
. what is the runner’s position at t = 2.0 s in terms of the component
directions (forward/back and left/right)?

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