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evablogger [386]

2 years ago

9

about edubrainly. it seems it takes the questions from this website, C&P them, and also try's to get you to have viruses. ca

n someone try to take it down please?

1 answer:

Y_Kistochka [10]2 years ago

6 0

Answer:

yes

Explanation:

You might be interested in

Suppose you are implementing a relational employee database, where the database is a list of tuples formed by the names, the pho

m_a_m_a [10]

Answer:

Explanation:

val db = ("John", "x3456", 50.1) :: ("Jane", "x1234", 107.3) ::

("Joan", "unlisted", 12.7) :: Nil

type listOfTuples = List[(String, String, Double)]

def find_salary(name: String) = {

def search(t: listOfTuples): Double = t match {

case (name_, _, salary) :: t if name == name_ => salary

case _ :: t => search(t)

case Nil =>

throw new Exception("Invalid Argument in find_salary")

}

search(db)

}

def select(pred: (String, String, Double) => Boolean) = {

def search(found: listOfTuples): listOfTuples = found match {

case (p1, p2, p3) :: t if pred(p1, p2, p3) => (p1, p2, p3) :: search(t)

case (p1, p2, p3) :: t if !pred(p1, p2, p3) => search(t)

case Nil => Nil

case _ => throw new Exception("Invalid Argument in select function")

}

search(db)

}

println("Searching the salary of 'Joan' at db: " + find_salary("Joan"))

println("")

val predicate = (_:String, _:String, salary:Double) => (salary < 100.0)

println("All employees that match with predicate 'salary < 100.0': ")

println("\t" + select(predicate) + "\n")

7 0

3 years ago

Does anyone know how to fix this? It's a chromebook and project where I have to try to fix it

Zielflug [23.3K]

Answer:

Hey I found this on You Tube it may help u a lot

Explanation:

https://youtu.be/ab9BdT6fYJ8

4 0

2 years ago

Lately, you have noticed some repetitive stress in your wrist. Which sign is most likely the cause of that stress and pain?

Cerrena [4.2K]

1, you might have been carrying things that are way too heavy for you.
2, you might have weak tendons.

3 0

3 years ago

Air at 38°C and 97% relative humidity is to be cooled to 14°C and fed into a plant area at a rate of 510m3/min. (a) Calculate th

Katarina [22]

To develop the problem it is necessary to apply the concepts related to the ideal gas law, mass flow rate and total enthalpy.

The gas ideal law is given as,

$PV=mRT$

Where,

P = Pressure

V = Volume

m = mass

R = Gas Constant

T = Temperature

Our data are given by

$T_1 = 38\°C$

$T_2 = 14\°C$

$\eta = 97\%$

$\dot{v} = 510m^3/kg$

Note that the pressure to 38°C is 0.06626 bar

PART A) Using the ideal gas equation to calculate the mass flow,

$PV = mRT$

$\dot{m} = \frac{PV}{RT}$

$\dot{m} = \frac{0.6626*10^{5}*510}{287*311}$

$\dot{m} = 37.85kg/min$

Therfore the mass flow rate at which water condenses, then

$\eta = \frac{\dot{m_v}}{\dot{m}}$

Re-arrange to find $\dot{m_v}$

$\dot{m_v} = \eta*\dot{m}$

$\dot{m_v} = 0.97*37.85$

$\dot{m_v} = 36.72 kg/min$

PART B) Enthalpy is given by definition as,

$H= H_a +H_v$

Where,

$H_a$ = Enthalpy of dry air

$H_v$ = Enthalpy of water vapor

Replacing with our values we have that

$H=m*0.0291(38-25)+2500m_v$

$H = 37.85*0.0291(38-25)-2500*36.72$

$H = 91814.318kJ/min$

In the conversion system 1 ton is equal to 210kJ / min

$H = 91814.318kJ/min(\frac{1ton}{210kJ/min})$

$H = 437.2tons$

The cooling requeriment in tons of cooling is 437.2.

3 0

3 years ago

Why might there be multiple foremen on one work site?

IrinaK [193]

Answer:

4

Explanation:

8 0

3 years ago