Se deja caer una pelota desde la la parte alta de un barranco, si tarda 3 segundos en llegar al piso A) ¿Cuál es la altura del barranco?
B) ¿Con que velocidad se impacta contra el suelo?

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87