Question

Tg("фи")=0,1 По найденному tgφ определить угол внутреннего трения ??

Answer 1

ф0=arctg0.1=5.71°

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Answer 2

The expression "Tg("фи")=0,1" seems to represent the tangent of an angle denoted by the Greek letter φ (phi), which is equal to 0.1 (or 1/10).

The tangent of an angle is defined as the ratio of the length of the side opposite the angle to the length of the adjacent side in a right-angled triangle. If we have the value of the tangent (0.1) and want to find the angle φ, we can use the inverse tangent function, usually denoted as "arctan" or "tan^(-1)".

In mathematical notation, we have: φ = arctan(0.1)

To find the value of φ, you can use a calculator that has the arctan function. Plug in the value 0.1 and calculate the result. The angle φ will be given in radians or degrees, depending on the calculator settings.

Once you have the value of φ, you can determine the angle of internal friction. The angle of internal friction (often denoted as "ϕ" or "phi" as well) is an important parameter in materials and soil mechanics. It is related to the shear strength of materials and plays a significant role in various engineering applications. However, without further context or information, it's challenging to relate the value of φ in this specific context to the angle of internal friction for a material or substance.