An era is a commonly used word for a long period of time. When used in science, for example geology, an era denotes a clearly defined period of time of arbitrary but well-defined length, such as for example the Mesozoic Era from 252 Maâ66 Ma, delimited by a start event and an end event.
As you increase voltage to the muscle describe how it responds to the increased stimulus. As the voltage was increased from threshold to maximum voltage, there was a greater force in the muscle contraction. Once the maximum voltage (2500 mv) was reached, even if there was an increase in voltage, the force of the muscle contraction remained the same.
From Question: What is the rpm range of the 2.2kw spindle and inverter?The VFD is capable of a maximum of 400 Hz frequency. That converts to 24,000 RPM for the spindle. The minimum frequency is 100 Hz which is 6000 RPM.From Question: I would like to know what the lowest rpm that can be acheived with the 2.2kw spindle and inverter and still have enough torque to drillAccording to the supplier of the 2.2 kW spindle, the safest operating speed for the spindle is 6000 RPM.