Given the vector B⃗ =5.00i^−2.00j^ , find the magnitude of the vector.

If a bottle of olive oil contains 1.4 kg of olive oil, what is the volume, in milliliters ( ml ), of the olive oil?

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:

Can anyone answer these questions? ? i need it before 1: 00pm today