What is the acceleration of a rocket that speeds up from 50 m/s to 1000 m/s in 3 seconds?

What is the type of the reaction below? bacl2 + h2so4 → 2 hci + baso4 double replacement synthesis single replacement decomposition

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

The energy equivalent of the rest mass of an electron is