An airplane accelerates at 45 m/s^2 from rest for 9 seconds when it takes off. How fast is it travelling when it takes off?*

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.