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3 years ago

Define the power of a machine

Engineering

1 answer:

Tems11 [23]3 years ago

8 0

Answer:

Power of a machine is defined as its rate of doing work. It is the rate of transfer of energy. The power of a machine is said to be one watt if it can work at the rate of one joule in one second.

Explanation:

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An instance of the stable marriage problem has a unique stable matching if and only if the version of the Gale-Shapely algorithm

inysia [295]

Answer: True

Explanation:

The statement by Gale-Shapely algorithm is true where the male proposes and the version where female proposes both are correct meaning that altogether it is true. This is applicable when both yield the exact same match.

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3 years ago

How is the purple stem trait variation similar to the tougue-rolling trait variation

yarga [219]

Answer:

Explanation:

Species

A group of organisms that can reproduce and produce fertile offspring (children that can reproduce themselves)

Trait

Characteristic of an organism (body part, behavior, chemical, produced)

Variation

Differences in trait expression

Inherited trait

Trait passed from parent to children (offspring)

Acquired Trait

Traits learned by/changed in an individual from interaction with the environment

Protein

A special type of biological molecule (only found in organisms) that organisms use to build, maintain, and operate the cells/tissues/organs of their bodies. (Like a prepared meal)

DNA

The biological molecule that serves as the chemical instructions or blueprints for building all the proteins an organism needs to build its body and survive. (Like words in a cookbook)

Gene

A section of a DNA molecule that serves as the instructions to build one protein. (Like one recipe in a cookbook)

Chromosomes

Large packages of coiled DNA molecules that are passed from parents to children. (Like different chapters on a cookbook)

Pollen

Flowering plant sperm (male sex cell)

Explanation:

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3 years ago

Find the diameter of the test cylinder in which 6660 N force is acting on it with a modulus of elasticity 110 x 103 Pa. The init

Shtirlitz [24]

Answer:

The diameter of the test cylinder should be 7.65 meters.

Explanation:

The Hooke's law relation between stress and strain is mathematically represented as

$Stress=E\times strain\\\\\sigma =e\times \epsilon$

Where 'E' is modulus of elasticity of the material

Now by definition of strain we have

$\epsilon =\frac{\Delta L}{L_{o}}$

Applying values to obtain strain we get

$\epsilon =\frac{0.5}{380}=0.001316$

Thus the stress developed in the material equals

$\sigma = 110\times 10^{3}\times 0.001316=144.76N/m^{2}$

Now by definition of stress we have

$\sigma =\frac{Force}{Area}\\\\\therefore Area=\frac{Force}{\sigma }\\\\\frac{\pi D^{2}}{4}=\frac{6660N}{144.76}=46m^{2}$

Solving for 'D' we get

$D=\sqrt{\frac{4\times 46}{\pi }}=7.653meters$

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3 years ago

What does basic levels of competence involves??

strojnjashka [21]

UnconsciousIncompetence = you don't know that you can't do it well.
ConsciousIncompetence = you know you can't do it well.
ConsciousCompetence = you do it well, and you think about the work as you do it.
UnconsciousCompetence = you're so successful it's "automatic" -- you do it well, without thinking about it.

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3 years ago

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An aluminum heat sink (k = 240 W/m-K) used to cool an array of electronic chips consists of a square channel of inner width w =

OverLord2011 [107]

Answer:

Explanation: see attachment below

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3 years ago

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Define the power of a machine​

Define the power of a machine