Determina la altura a la cual se encuentra un orificio en un recipiente cilíndrico, por el cual sale a una velocidad de 12m/s

How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57×10−21 newtons?

There are multiple tuning forks present in the room, and annie strikes one with a natural frequency of 400 hz. which of these other tuning forks will begin to vibrate through resonance and make the sound louder? a 200 hz tuning fork a 400 hz tuning fork a 800 hz tuning fork a 1600 hz tuning fork

First to answer will be the brainliest i need the answer asap