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2 years ago

All of the following affect friction EXCEPT

Engineering

1 answer:

Anarel [89]2 years ago

7 0

All of the aforementioned factors generally affect friction except: B. Humidity.

<h3>What is friction?</h3>

Friction can be defined as a force that resists the relative motion of two physical objects when there surfaces come in contact. Thus, it prevents two surface from easily sliding over or slipping across one another.

In Science, some of the factors that generally affect friction are:

Surface finish

Material

Temperature

In conclusion, all of the aforementioned factors generally affect friction except humidity.

Read more on friction here: brainly.com/question/17305262

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Complete Question:

All of the following affect friction EXCEPT;

A. Surface finish

B. Humidity

C. Materia

D. Temperature

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Answer:

Damping ratio $\zeta =0.0342$

Explanation:

Given that

m=4.2 kg,K=85.9 N/m,C=1.3 N.s/m

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We know that critical damping co-efficient

$C_c=2\sqrt {mk}$

$C_c=2\sqrt {4.2\times 85.9}$

$C_c=37.98$ N.s/m

Damping ratio( $\zeta$ ) is the ratio of damping co-efficient to the critical damping co-efficient

So $\zeta =\dfrac{C}{C_c}$

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$\zeta =0.0342$

So damping ratio $\zeta =0.0342$

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4 years ago

From the following numbered list of characteristics, decide which pertain to (a) precipitation hardening, and which are displaye

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Answer:

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Explanation:

The correct options for each are shown as follows:

Precipitation hardening

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The aging process occurs in the second statement; because it speaks volumes on how heated solutions are treated with alloys above raised elevated temperature. As such when aging increases, there exists a decrease in the hardness of the alloy.

Also, for the third option for precipitation hardening; This cycle includes the application of heat the alloy (amalgam) to a raised temperature, maintaining such temperature for an extended period of time. This temperature relies upon alloying components. e.g. Heating of steel underneath eutectic temperature. Subsequent to heating, the alloy is extinguished and immersed in water.

Dispersion strengthening

Here: The effect of hearting is not significant to the hardness of alloys hardening by the method in statement 3.

In statement 5: The process only involves the dispersion of particles and not the application of heat.

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3 years ago

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4 years ago

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