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3 years ago

A resource has value, and people are willing to pay for it most likely because the resource is

Engineering

2 answers:

Galina-37 [17]3 years ago

6 0

Answer:

abundant

Explanation:

erik [133]3 years ago

4 0

Answer:

Scarce

Explanation:

abundant would mean that there's plenty of something so people could probably get it somewhere for free or cheaper (like staples or paperclips since these are cheap)

Renewable means that the product would be something that's easily replaceable and would probably not cost a lot (like water or fire)

Inexpensive means that the product is really expensive and valuable, people understand its value but would not buy it since it's so expensive (like a famous art piece or a historic artifact)

scarce means that the product is not something an average person would be able to make on their own or find an alternative as easily, but it is not too costly either (like plates or a printer)

also i believe this is the right answer for edg

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The fracture toughness of a stainless steel is 137 MPa*m12. What is the tensile impact load sustainable before fracture that a r

Charra [1.4K]

Answer:

7.7 kN

Explanation:

The capacity of a material having a crack to withstand fracture is referred to as fracture toughness.

It can be expressed by using the formula:

$K = \sigma Y \sqrt{\pi a}$

where;

fracture toughness K = 137 MPa $m^{1/2}$

geometry factor Y = 1

applied stress $\sigma$ = ???

crack length a = 2mm = 0.002

∴

$137 =\sigma \times 1 \sqrt{ \pi \times 0.002 }$

$137 =\sigma \times 0.07926$

$\dfrac{137}{0.07926} =\sigma$

$\sigma = 1728.489 MPa$

Now, the tensile impact obtained is:

$\sigma = \dfrac{P}{A}$

P = A × σ

P = 1728.289 × 4.5

P = 7777.30 N

P = 7.7 kN

7 0

3 years ago

Spring-loaded rack guide yokes are made of ______ and have a spring that pushes on the back side of the rack to help reduce the

Kobotan [32]

Answer:

metal

Explanation:

A yoke assembly are use in an assembly of a rack and pinion steering gear for a vehicle. The spring loaded yokes guided with a rack are made up of metals. It consists of a spring made of steel which pushes the back side of the rack to reduce the play that occurs between the pinion and the rack and still allow the relative motion.

6 0

3 years ago

Which of the following statements most accurately describes the circuit?

Fofino [41]

Answer:

Explanation:

All of the above.

7 0

2 years ago

Measuring the current flow required by a horn requires that the ammeter be connected to the circuit

Georgia [21]

Answer:

hi there I have attached my resume for your reference and hope to see you all there are other

Explanation:

hi apner name ki and I like the country studies

5 0

2 years ago

An inductor is connected to a voltage source and it is found that it has a time constant, t. When a 10-ohm resistor is placed in

prisoha [69]

Answer:

A) 30 mH

B ) 10-ohm

Explanation:

resistor = 10-ohm

Inductor = 30mH ( l )

L = inductance

R = resistance

r = internal resistance

values of the original Inductors

Note : inductor = constant time (t) case 1

inductor + 10-ohm resistor connected in series = constant time ( t/2) case2

inductor + 10-ohm resistor + 30 mH inductance in series = constant time (t) case3

<em>From the above cases</em>

case 1 = time constant ( t ) = L / R

case 2 = Req = R + r hence time constant t / 2 = L / R + r therefore

t = $\frac{2L}{R+r}$

case 3 = Leq = L + l , Req = R + r . constant time ( t )

hence Z = $\frac{L + l}{R + r}$ = t

A) Inductance

To calculate inductance equate case 1 to case 3

$\frac{L}{R}$ = $\frac{L + l}{R + r}$ = L / 10 = (L + 30) / ( 10 + 10 )

= 20 L = 10 L + 300 mH

10L = 300 m H

therefore L = 30 mH

B ) The internal resistance

equate case 1 to case 2

$\frac{L}{R}$ = $\frac{2L}{R + r}$

R + r = 2 R therefore ( r = R ) therefore internal resistance = 10-ohm

6 0

2 years ago