If |V1⃗⃗⃗⃗ + V2⃗⃗⃗⃗| = |V1⃗⃗⃗⃗ − V2⃗⃗⃗⃗| and V2⃗⃗⃗⃗ is not equal to zero, then which of the following statement is true?- (a) V1⃗⃗⃗⃗ and V2⃗⃗⃗⃗ are parallel (b) V1⃗⃗⃗⃗ and V2⃗⃗ are equal in magnitude,

(c) V1⃗⃗⃗⃗ and V2 ⃗⃗⃗⃗ are perpendicular to each other, (d) none of these

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.

Which accurately compares concave and convex lenses?

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.