O mărime fizică vectorială se deosebeşte de o mărime fizică scalară prin următoarele elemente:

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

Is a copper wire a conductor or insulator?

If you let go of the notebook after lifting it, will it move? how?