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Varvara68 [4.7K]

3 years ago

10

The three sub regions of South America are the Andes Mountains, the Amazon Rainforest, and the Eastern Highlands. The Atacama De

sert is the driest place on Earth.

2 answers:

Leto [7]3 years ago

8 0

Answer:

<:

Explanation:

pentagon [3]3 years ago

4 0

Answer:

d

Explanation:

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The privilege of driving comes with

julsineya [31]

The privilege of driving comes with responsibility

5 0

2 years ago

Water vapor at 5 bar, 320°C enters a turbine operating at steady state with a volumetric flow rate of 0.65 m3/s and expands adia

harina [27]

Answer:

Power = 371.28 kW

Explanation:

Initial pressure, P1 = 5 bar

Final pressure, P2 = 1 bar

Initial temperature, T1 = 320°C

Final temperature, T2 = 160°C

Volume flow rate, V = 0.65m³/s

From steam tables at state 1,

h1 = 3105.6 kJ/kg, s1 = 7.5308 kJ/kgK

v1 = 0.5416 m³/kg

Mass flow rate, m = V/v1

m = 1.2 kg/s

From steam tables, at state 2

h2 = 2796.2 kJ/kg, s2 = 7.6597 kJ/kgK

Power developed, P = m(h1 - h2)

P = 1.2(3105.6-2796.2)

P = 371.28 kW

8 0

3 years ago

What's the difference between accuracy and percision in measuring and gaging?

lidiya [134]

Answer:

The term Accuracy means that how close our result to the original result.

Suppose we do any experiment in laboratory and we calculate mass = 7 kg but answer is mass = 15 kg then our answer is not accurate.

And the term Precision means how likely we get result like this.

Suppose we do any experiment in laboratory and we calculate mass five times and each time we get mass = 7 kg then our answer is precised but not accurate.

4 0

3 years ago

A vertical curve is designed for 55 mi h and has an intial grade of +2.5

Dafna1 [17]

Vertical curves are the curves which provide a vehicle to negotiate elevation rate change at a slow rate.

<u>Explanation:</u>

A vertical curve gives a progress between two slanted roadways, permitting a vehicle to arrange the height rate change at a slow rate as opposed to a sharp cut.

In any event four distinct criteria for building up lengths of list vertical bends are perceived somewhat. These are (1) front light sight separation, (2) rider comfort, (3) waste control, and (4) a dependable guideline for outward presentation.

8 0

3 years ago

The volume fraction of particles in a WC-particle Cu-matrix CERMET is 0.84 Calculate the minimum expected elastic modulus, in GP

Lynna [10]

Answer:

the minimum expected elastic modulus is 372.27 Gpa

Explanation:

First we put down the data in the given question;

Volume fraction $V_f$ = 0.84

Volume fraction of matrix material $V_m$ = 1 - 0.84 = 0.16

Elastic module of particle $E_f$ = 682 GPa

Elastic module of matrix material $E_m$ = 110 GPa

Now, the minimum expected elastic modulus will be;

$E_{CT$ = ( $E_f$ × $E_m$ ) / ( $E_f$ $V_m$ + $E_m$ $V_f$ )

so we substitute in our values

$E_{CT$ = (682 × 110 ) / ( [ 682 × 0.16 ] + [ 110 × 0.84] )

$E_{CT$ = ( 75,020 ) / ( 109.12 + 92.4 )

$E_{CT$ = 75,020 / 201.52

$E_{CT$ = 372.27 Gpa

Therefore, the minimum expected elastic modulus is 372.27 Gpa

7 0

2 years ago