Water in a reservoir is flowing through a hydroelectric plant. The water level in the reservoir is 53ft. The water level on the spillway is 3feet and its width is 10feet. The headloss is 10ft. The flow leaving the reservoir is 500 cubic feet per second. What is the amount of head available to drive the turbine? 48.62ft
31.38ft
35.69ft
​
44.31ft

Answer:

Mass flow rate = 15.96kg/s

Explanation:

From

P1V1=mRT1

V1=RT1/P1

V1=0.0492m³/kg

M=A(U)/V1

Where u is the velocity

A=πd²/4

M=π(0.2²)/4×25/0.0492

M=15.96kg/s

Answer:

The correct answer is that a hydraulic power system is used for large amounts of force.

Explanation:

A pneumatic power system would be much more effective at focusing on a specific area. One person would be able to hold a pneumatic system, as the design can be made small. It can even be designed with a simple on/off switch.

The hydraulic system would fail because hydraulic power system is used for large amounts of force.

Energy or signals are transported through the static or dynamic forces of liquids in hydraulic power transmission systems. These fluid power systems are a subset of them. The two types of fluid power are hydraulics and pneumatics. The valves aid in controlling the liquid's flow and relieving pressure when necessary.

Pumps are used in hydraulic systems to force hydraulic fluid through the system and generate fluid power. The fluid flows to the cylinder, where the hydraulic energy is converted back into mechanical energy, after passing through the valves.

Therefore, Due to the hydraulic system's need for high levels of force, it would malfunction.

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Answer:

219

Explanation:

Unsigned binary number (base two) 1101 1011 converted to decimal system (base ten) positive integer = 219.

Answer:219

Explanation:128+64+16+8+2+1

Answer:

This is an example of the conduction of electricity through metal. Free moving electrons on the car will conduct a electric field when a voltage is applied to the car;  in this case the transmission line, and would flow through the metal to the door handle causing electrocution.

Answer:

B) SHORT CIRCUIT

Explanation:

Answer:

i) Primary sensing element.

ii) Variable conversion element.

iii) Variable manipulation element.

Explanation:

Answer:

The main functional elements of a measurement system are:

i) Primary sensing element.

ii) Variable conversion element.

iii) Variable manipulation element.

v) Data transmission element.

Answer:

The answer could be correct

Explanation:

According to your explanation this would really help out the Analyze the example of this band saw wheel and axle. The diameter of the wheel is 14 inches. The diameter of the axle that drives the wheel is 3/4 inch. The actual force needed to cut through a one-inch-thick softwood board is 1.75 pounds. Consider the efficiency of this band saw to be 22%.

Questions: Calculate ideal mechanical advantage when the effort force is applied to the axle.

Questions: considering the efficiency calculate the actual mechanical advantage of the wheel and axle.

Questions: If you used the same wheel and axle in a different way and applied effort force to the wheel to drive the axle, what is the ideal mechanical advantage of the wheel and axle?

With a professional, do an automotive diagnostic

Verification and confirmation in

Step 1. This step in the vehicle diagnostic process enables the expert to look for potential issues.

Step 2: Identify the issue.

Step 3: Area isolation.

4. Make repairs.

The final step is a check.

the procedure of determining a diagnosis, disease, or injury based on its indications and symptoms. To aid in the diagnosis, testing like blood tests, imaging tests, and biopsies may be done in addition to a physical examination and health history.

Using a computer scan tool, the repairman will obtain the diagnostic issue code data from the computer. A fully qualified technician can more correctly identify and address the issue by using this information.

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Using a computer scan tool, the repair technician will retrieve the diagnostic trouble code information from the computer. A properly trained technician can use this information to more accurately locate and repair the problem.

As part of the standard operating procedure, many experts recommend that shops perform a pre-scan of all vehicle computer modules, as well as a scan after the vehicle is repaired (SOP). This is not only good business practice, but it also helps to communicate with the customer about potential vehicle flaws that may not have been part of the customer's original concern.

Pre-scan: This entails gaining access to all vehicle modules and downloading any or all stored Diagnostic Trouble Codes (DTCs), including pending codes. Any DTCs that have been stored will be recorded on the work order, and if they are related to a customer, it may be necessary to notify the customer and obtain approval before proceeding with the repair.

Post Scan: After the vehicle has been repaired and before it is released to the customer, a full module scan is performed to ensure that another DTC was not set during the repair in addition to the repair. procedure for repair The results of this follow-up scan should also be documented on the repair order so that they can be added to the driving history.

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Answer:

0.05%

Explanation:

From the question, we have;

The yield strength of the mild steel, \(\sigma _c\) = 43.5 ksi

Young's modulus of elasticity, ∈ = 29,000 ksi

The total strain, \(\epsilon _c\) = 0.2% = 0.002

The inelatic strain \(\epsilon_c^{in}\) is given as follows;

\(\epsilon_c^{in}\) = \(\epsilon _c\) - \(\sigma _c\)/∈

Therefore, we have;

\(\epsilon_c^{in}\) = 0.002 - 43.5/(29,000) = 0.0005

Therefore, the inelastic strain, \(\epsilon_c^{in}\) = 0.0005 = 0.05%

Taking the inelastic strain as the residual strain, we have;

The residual strain = 0.05%

Answer:

i believe tungsten is stronger than titanium !

The rotation rate required to cast the copper sleeve is 92.2 revolutions per minute.

The speed of the required rotation of a cylinder in centrifugal casting is given. What is centrifugal casting? Centrifugal casting is the process of producing parts by pouring molten metal into a cylindrical mould rotating about a horizontal or vertical axis.

This can be achieved using two different methods, depending on the axis of rotation: horizontal or vertical. The horizontal method is commonly used for casting pipes, as well as many other structures, and is often referred to as spinning.In order to eliminate bubbles and provide high structural stability, each bit of metal must be subjected to a centripetal acceleration of 119g.

We must determine the necessary rotation rate to achieve this acceleration. The formula for calculating centripetal acceleration is as follows: a = v^2/r. Where a is the centripetal acceleration, v is the velocity of the particle, and r is the distance from the particle to the axis of rotation.

We can use this formula to solve for the rotation rate (in RPM) as follows: \(v^{2}\) = arv = \(\sqrt{ar}\) The rotational velocity required to produce a centripetal acceleration of 119g can be calculated by substituting a = 119g, r = 2.25 cm (the average radius of the sleeve), and g = 9.81 m/s2 (the acceleration due to gravity) into the formula:v = \(\sqrt{(119g * 0.0225 m)}\) = 25.9 m/s

Now that we have the velocity required for the centripetal acceleration, we must convert it to RPM. We can do so using the formula:v = rω where ω is the angular velocity. ω = v/r = 25.9 m/s / 0.0225 m = 1151.1 rad/s The rotational speed in RPM can now be calculated by dividing the angular velocity by 2π and converting it to minutes: rpm = 1151.1 rad/s / 2π rad/rev / 60 s/min = 92.2 RPM. Therefore, the answer is 92.2 revolutions per minute.

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The area of the gutter is therefore equal to the area of the rectangle plus the area of the triangles.

A = rectangle + 2 * triangle

= 10h + 2 * (1/2 hw)

Using trig work out h and w.

h = 10 sin ?

w = 10 cos ?

A = 10h + hw

= 100sin? + 100sin?cos?

Differentiate the expression (either use the product rule for sin? cos?, or write 100sin?cos? as 50sin2? using the double angle formula)

A = 100sin? + 50sin2?

dA/dt = 100cos? + 100cos2?

For A to be a max or min the derivative must equal zero

100cos? + 100cos2? = 0

cos? + cos2? = 0

Use the double angle formula to write cos2? as 2cos^2 ? - 1

cos? + 2cos^2 ? - 1 = 0

2cos^2 ? + cos? - 1 = 0

This quadratic factorizes:

(2cos? - 1)(cos? + 1) = 0

This means that

cos ? = 1/2 or cos ? = 1

giving:

? = pi/3 or ? = pi

Which means that to achieve the maximum area ? should be pi/3 = 60 degrees

You can check that this is the max by substituting in these values of theta and the two end points (theta = 0, theta = pi), and seeing that pi/3 gives the maximum.

The maximum area is therefore

A = 100sin? + 100sin?cos?

= 100sin(pi/3) + 100sin(pi/3)cos(pi/3)

= 100 sqrt(3) / 2 + 100 sqrt(3)/2 * 1/2

= 100 * 3/2 * sqrt(3) / 2

= 3 * 25 * sqrt(3)

= 75 sqrt(3)

= 129.9...

= 130 cm^3

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Answer:

measures, dissolves, liquid, carbon dioxide, evaporates, water vapor, mold, decompose

Cookies allow a website to store information on the client computer for later retrieval.

Cookies are small text files that websites send to the user's browser and store on the user's computer. They are commonly used to remember user preferences, track user interactions, and provide personalized experiences. When a user visits a website, the server can set a cookie on the user's computer, which is then sent back to the server with subsequent requests. This allows the website to recognize the user, remember their preferences, and provide customized content. Cookies are widely used in web development and are an essential part of many online services, enabling features such as persistent logins, shopping carts, and targeted advertising.

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The forces in members BC and FG of the loaded symmetrical truss can be determined by using one section and two equations, each of which contains only one of the two unknowns.

What is Force?
A force is an effect that can alter an object's motion according to physics. A force can cause an object with mass to accelerate when it changes its velocity, for as when it moves away from rest. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction. It is calculated using the newton SI unit (N). Force is denoted by the letter F. (formerly P).
The net force acting on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original formulation.



The forces in members BC and FG of the loaded symmetrical truss can be determined by using one section and two equations, each of which contains only one of the two unknowns. By using the section, the force in member BC can be determined. By using the equation, the force in member FG can be determined.

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The py thon program that reads a list of scores and then assigns grades based on the given scheme is; As written below

The program steps when written in Py-thon is;

Enter scores: 40 55 70 58

Student 0 score is 40 and grade is C

Student 1 score is 55 and grade is B

Student 2 score is 70 and grade is A

"""

def get_grade(points):

   score = 70 - points

   grades = [(40, 'D'), (30, 'C'), (20, 'B'), (10, 'A')]

   result = ''

   for grade in grades:

       if score <= grade[0]:

           result = grade[1]

   return result

def scorer(points):

   results = []

   for point in points:

       results.append(get_grade(point))

   return results

if __name__ == "__main__":

   user_input = input('Enter scores: ')

   points = [int(n) for n in user_input.split(' ')]

   points = [ int(n) for n in user_input.split(' ')]

    scores = scorer(points)

   for n in range(len(points)):

       m sg = 'Student {} score is {} and grade is {}'.format(

           n, points[n], scores[n]

       )

       print(m sg)

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Answer:

Information technology is important in our lives because it helps to deal with every day's dynamic things. Technology offers various tools to boost development and to exchange information. Both these things are the objective of IT to make tasks easier and to solve many problems.

Answer:

The rate of cell metabolism is limited by mass transfer since the value of maximum cell concentration obtained (38 g/l) is lower than 50 g l-1, the value planed.

Explanation:

                                                     Data

kLa = 0.17/s

Solubility of oxygen =  8 × 10^-3 kg / m^3

The maximum specific oxygen uptake rate = 4 mmol O2 / g h.

Concentration of oxygen =  0.5 × 10^-3 kg/ m^3

**The maximum cell density = 50 g/l

___________________

The calculated maximum cell concentration:

xmax=  kLa · CAL*/ qo

CAL* is the solubility of oxygen in the broth and qo is the specific oxygen uptake rate

Replacing the data given

xmax= ( 0.17/s ) ·   (8 × 10^-3 kg / m^3)  /  4 mmol O2 / g h

4 mmol O2 / g h  to kg O2/ g s

\(4 \frac{mmol}{gh} \frac{1 gmol}{1000mmol}\frac{1h}{3600s}\frac{32 g}{gmol} \frac{1Kg}{1000g}\)

= 3.56 x 10^-3 kg O2/ g s

So then,

xmax= ( 0.17/s ) ·   (8 × 10^-3 kg / m^3)  / 3.56 x 10^-3 o kg O2/ g s

xmax= 3. 8 x 10^4 g/ m^3   = 38 g/l

_____________________

Answer:

wat?

Explanation:

The question should be labeled in the psychology section, but what I assume the question means is some sort of paradoxical reverse psychology method of braincell loss. Even photosynthesis doesn't understand what it means. The question probably is what is the question, not that there's no help.

Hope this helps (a little)!

Answer:

Borders, Dimensions Identified, Scale, Text Box with Date/Author/Title/Version Number

Explanation:

Technical drawings have many standards in order to maintain integrity and ensure that they can be used by engineers to produce what is mapped out in the drawing.

Every technical drawing needs to have borders and a text box with all information related to the drawing. This includes the date it was created, date it was updated, version number, title, and author.

Furthermore, each drawing should have necessary dimensions with a scale. At the same time, technical drawings should not be over-dimensioned or repetitive.

All of these things must be on a technical drawing to allow professional engineers to sign off on drawings.

The application reads integers from the user up till a * is inserted. The num list list is used to store the integers. A while loop is then used to output the integers, separated by commas, in reverse order.

The majority of coding interviews involve questions about data structures, algorithms, and logic. The themes of the array, linked list, string, binary tree, and algorithmic issues all come up in coding interviews.

Coding, a programming activity, focuses on producing codes that computers can comprehend. Programming requires approving codes in order to create programs. Simple software skills and programming expertise are all that are necessary for coding.

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When approaching Exit 71 on I-71, the best detour is to take Exit 65 and go on local roads to get to your destination. Be prepared for delayed travel as there will be a large backup on this route as well.

It is best to choose detours that meet the drivers' destinations.

There may be several different alternatives to take into account, depending on the final destination.

While on their alternate route, drivers should always be aware of road signs and closures.

Drivers should choose a different route if they discover that their alternate route is similarly blocked or backed up.

If you come upon an impassable road, it is advised that you take an alternative route.

Taking a substantial detour to get to your destination can be essential, depending on how bad the road conditions are.

The ideal alternative while reaching Exit 71 on I-71 is to take Exit 65 and go on local roads to your destination.

There will be a significant backup on this route as well, so plan on having your travel time pushed back.

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Q. An emergency alert went out Friday night noting I-71 NB near mile marker 63 in Gallatin County was "impassible." Gov. Andy Beshear tweeted that teams were working to find a route to divert traffic for cars stuck on the interstate.

Answer:

John Gorrie

You might think it was Willis Carrier who made the first AC but actually he made the modern one. John Gorrie invented an air-refrigeration machine in the 1850s to cool hospital patients after heat waves made them feel uncomfortable and nauseous inside the building.

He isn't really credited for making modern AC but he did in fact make a huge step forward into its development.

Answer:

20368.917N

Explanation:

Frictional force (F) is the product of the Coefficient of friction and the normal reaction.

F = μN

Coefficient of friction, μ = 0.2

Normal reaction = MgCosθ

Mass, m = 12 tonnes = 12 * 1000 = 12000 kg

N = 12000 * 9.8 * cos30

N = 101844.58

F = 0.2 * 101844.58

F = 20368.917N

A grounding electrode known as a "grounding rod" or "grounding stake" is frequently specified for installation at each manhole, transformer, or substation in some engineered grounding system designs.

An electrical grounding system must include a grounding electrode. It is often installed in the ground to provide a low-impedance path for the dissipation of electrical energy in the case of a fault or surge. Its typical materials include copper, copper-clad steel, or other conductive materials. In engineered grounding systems, grounding electrodes are frequently employed to shield people and equipment from electrical dangers including electrical failures and lightning strikes. To maintain the efficiency and dependability of a grounding system, proper installation and maintenance of grounding electrodes are essential. Installation of grounding electrodes at manholes, transformers, and substations is frequently specified.

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This work can be carried out using the combination of the aforementioned operations. To sum the components of a tuple, use the sum() method, as in result = sum(my tuple)

Here, we first convert the tuple to a list, use map() to flatten each list element, sum() to add up each element's values, and then use sum() once more to add up the list as a whole. To sum the components of a tuple, use the sum() method, as in result = sum(my tuple) The sum function adds up the items in an iterable (like a tuple) from left to right and then returns the sum.

# ------- file: myplot.py ------

import matplotlib.pyplot as plt

import numpy as np

x = np.linspace(0, 10, 100)

plt.plot(x, np.sin(x))

plt.plot(x, np.cos(x))

plt.show()

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The "Focus Four" Hazards, which account for the majority of fatalities in the building sector, are falls, being struck by an object, being caught in or between, and electrocution.

Injuries caused by a person being squeezed, caught, crushed, pinched, or compressed between two or more items, or between portions of an object, are referred to as caught-in or -between hazards, according to OSHA.

An organised method for evaluating hazards and the risks they pose is provided by the Hazard Identification and Risk Assessment (HIRA) research. HIRA Safety offers the method to manage the risk and aids in determining the goal of a hazard that has been found.

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Answer:

color, shape container, type, amount, temperature

Explanation: