Locução adjetiva e de portuges ou istoria

Consider an experiment in which the number of pumps in use at each of two seven-pump gas stations was determined. Call the two g

MakcuM [25]

Answer: Determine the number of pumps in each of the two six-pump gas stations.

• X = the total No. of pumps that are in use at the 2 stations

• Y = the difference between the No. of pumps in utilization at station 1 and the

NO. of pumps in use at the station 2

• U = the max number of pumps in use at the 2 stations

W (observed) = (3, 4)

X (W) = 3 + 4 = 7

Y (W) = 3 − 4 = − 1

U (W) = max (3, 4) = 4

8 0

3 years ago

I have a 500 L tank that can hold a fluid. How much heavier or lighter will the tank be if a. The tank holds water at 80C compar

Genrish500 [490]

Answer:

water=14.1 kg

air=0.1348kg

Explanation:

Through laboratory tests, thermodynamic tables were developed, these allow to know all the thermodynamic properties of a substance (entropy, enthalpy, pressure, specific volume, internal energy etc ..)

through prior knowledge of two other properties such as pressure and temperature.

To solve this exercise we must find the specific volume of water and air in the two states and then subtract them and multiply them by the volume of the tank to find the change in mass, the following equation is inferred

Δm=V(ρ2-ρ1)

Where V= tank volume=500L=0.5m^3

ρ2= density of fluid in state 2

ρ1=density of fluid in state 1

Δm=change of mass

for water

ρ1=971.8kg/m^3(80C)

ρ2=1000kg/m^3(5C)

Δm=0.5(1000-971.8)

Δm=14.1 kg

for air

ρ1=0.9994kg/m^3(80C)

ρ2=1.269kg/m^3(5C)

Δm=0.5(1.269-0.9994)

Δm=0.1348kg

7 0

3 years ago

Fill in the blank with the correct response.

antoniya [11.8K]

Answer:

Mentorship

Explanation:

Im smart.

5 0

3 years ago

How do I put a picture on here for my graph equation??

Pavel [41]

Answer:

Take a screenshot of it and when you go to question you will see a paperclip looking thing

Explanation:

8 0

4 years ago

Read 2 more answers

Using the Breguet range and endurance equation, estimate the amount of kerosene

love history [14]

The amount of kerosene fuel needed for an aircraft weighing 10 metric tons to fly from Boston to Los Angeles, assuming a distance of 5,000 [km] is 10000 kg.

<h3>What is Breguet equation?</h3>

Breguet equation is used to determine the range of airplane fly in some specified set of parameters.

$R=\dfrac{h_f}{g}\dfrac{L}{D}\times \eta \ln \left(\dfrac{W_{initial}}{W_{final}}\right)$

Here, (L/D) is lift to drag ratio,<em> g</em> is gravitation acceleration,<em> h </em>is height and <em>W</em> is weight.

The weight of aircraft is 10 metric tons (this is the dry weight that includes passengers and cargo) The distance of 5,000 [km], with velocity at 300 [m/s] from Boston to Los Angeles has to be cover by the airplane.

The initial weight is 10 metric tons or 10000 kg. Thus, the final weight with total fuel burn is,

$W_{final}=W_{initial}-W_{fuel}\\W_{final}=1-\dfrac{W_{fule}}{W_{initial}}$

The lift-to-drag ratio is 15 and the overall efficiency is 0.3, The standard air density at an altitude of approximately 6,000 [m] is half.

Thus, put the values, in above formula,

$5000=\dfrac{6000}{9.81}(15)\times(0.3) \ln \left(\dfrac{10000}{1-\dfrac{W_{fuel}}{10000}}}\right)\\$

$\ln \left(\dfrac{10000}{1-\dfrac{W_{fuel}}{10000}}}\right)=1.8167\\\ln \left(\dfrac{1}{10000-W_{fuel}}}\right)=1.8167$

Solving this equation, we get,

$W_{fuel}=10000\rm\; kg\\$

Thus, the amount of kerosene fuel needed for an aircraft weighing 10 metric tons to fly from Boston to Los Angeles, assuming a distance of 5,000 [km] is 10000 kg.

Learn more about the Breguet equation here:

brainly.com/question/15218094

#SPJ1

7 0

2 years ago