5 kg box of iPhones is pulled across a table by a horizontal force of 60 N with a frictional force of 10 N
opposing the motion. Calculate the acceleration of
the box.

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 energy released by a nuclear fusion reaction is produced when

Mackinzie walks 4 blocks west, then 2 blocks south, then 4 blocks east, and, finally, 1 block south. what is the magnitude of her total displacement duringthis walk (in blocks)?