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Yes, the knee can be considered a simple machine in the human body, specifically functioning as a lever. It acts as a third-class lever where the thigh (femur) serves as the lever arm, the knee joint operates as the fulcrum, and the muscle contractions (such as from the quadriceps) provide the effort to move the lower leg. This mechanical advantage allows for efficient movement and weight-bearing activities.

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4mo ago

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Which parts of your body's act like simple machines?

Several parts of the body function like simple machines. For instance, the lever system is exemplified by the bones and muscles, where the bones act as levers and the joints serve as fulcrums, facilitating movement. The knee functions as a first-class lever, while the elbow operates as a third-class lever. Additionally, the pulley system can be seen in the tendons that pull on bones, enabling efficient movement and force application.


How can you find out the manufacture date of a bridgeport milling machine by giving the serial number?

To find the manufacture date of a Bridgeport milling machine using its serial number, you can refer to the serial number charts provided by Bridgeport or various online resources. Typically, the serial number is stamped on the machine's knee, and you can match it against the known serial number ranges associated with specific production years. Additionally, you can contact Bridgeport or authorized dealers for assistance in determining the manufacture date based on the serial number.


Why the graph of breakdown voltage is cheaper than knee voltage?

Break down voltages happens at low voltages (.6 for silicon & .3 for germanium), whereas knee voltages at higher voltages. That's why its cheaper.


What is 0.37v and 0.63v in RC circuit?

0.63 is the knee voltage & 0.37 is the cutoff voltage


Why is knee voltage is different for different colour LED'S?

The knee voltage, or forward voltage drop, varies for different colored LEDs due to the materials used in their construction. Each color corresponds to a specific wavelength of light, which is determined by the energy bandgap of the semiconductor material. For example, red LEDs typically have a lower knee voltage (around 1.8-2.2 volts) compared to blue or white LEDs (around 3-3.5 volts), as the energy required to emit light increases with shorter wavelengths. This variation in knee voltage is a result of the differing energy levels associated with the electrons in the semiconductor materials.