uestion 10
0
On a day where the temperature is (25 C) and the pressure is
101.2 kPa, and assuming that the take-off speed is (150 miles per
hour). How much drag is produced if the coefficient of drag is
0.045? The wing area is 22 m2 and has a mass of 1250 kg.

or...................

Answer:

i believe it is true

Explanation:

A good company cultivates the mindset that goal is more important than process and has a clearly defined mission.

Purpose, ownership, community, effective communication, and competent leadership are the five key components that organizations must address in order to achieve this. Let's explore each of them a little more thoroughly.

Through the effective coordination of all operations, a solid organizational structure makes it easier for each individual to fulfill their goals. reduces general disputes between team members and individuals. It eliminates overlap and duplication of effort. It lessens the possibility of runarounds.

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Pump 2 must add approximately X kW of power to the water.

To determine the power required by Pump 2, we need to consider the change in kinetic energy of the water as it exits the tank. The kinetic energy can be calculated using the formula:

Kinetic Energy = (1/2) * mass * velocity^2

Since the water has an exit velocity of 6 m/s, we can calculate the initial kinetic energy. We are given that Pump 1 supplies 1 kW of power, so we can use this information to find the flow rate (Q) in kg/s using the equation:

Power (P) = Q * Head Loss (hl) * g

We know the velocity (V) is equal to the flow rate (Q) divided by the cross-sectional area (A) of the tank. Therefore:

Q = A * V

By substituting this equation into the power equation, we can solve for the flow rate Q:

1 kW = (A * V) * hl * g

Once we have the flow rate, we can determine the mass of water (m) using the equation:

mass = Q * density

With the mass and the exit velocity, we can calculate the initial kinetic energy. To achieve the desired velocity, the kinetic energy must increase. The additional power required by Pump 2 can be calculated by finding the difference between the final and initial kinetic energies.

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Answer:

1) 4.41 * 10^-4 kw

2) 2.20 * 10^-4 kw

Explanation:

Given data:

Filter = 500 m^3/min

dust velocity = 3g/m^3

bag ; length = 3 m , diameter = 0.13 m

change in pressure = 1 kPa

efficiency = 60%

1) Calculate the Fan power

First :

Calculate the total dust loading = 3 * 500 = 1500 g

To determine the Fan power we will apply the relation

\(n_{o} = \frac{\frac{p}{eg*Q*h} }{1000}\)    = \(\frac{\frac{p}{(3*10^{-3})* 981*( 500/60) *3 } }{1000}\)

fan power ( \(n_{0}\) ) = 4.41 * 10^-4 kw

2) calculate power drawn

change in P = 6 atm = 6 * 10^5 pa

efficiency compressor = 50%

hence power drawn = 4.41 * 10^-4 kw  * 50% = 2.20 * 10^-4 kw

Technician a says kinetic friction changes kinetic energy into thermal energy. technician b says static friction holds the car in place when it is stopped. Both A and B are correct.

In static friction, there is found to be some frictional force that tends to resists force that is known to be applied to an object, and the object will be at the same sport at rest until the force of static friction is known to be overcome.

In kinetic friction, the frictional force is one that tend to resists the movement of an object.

Therefore, Technician a says kinetic friction changes kinetic energy into thermal energy and technician b says static friction holds the car in place when it is stopped. Both A and B are correct.

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False, the analysis of an algorithm must take into consideration the computer that will be used to run a program that implements the algorithm.

What is an algorithm?

An algorithm (/aelrm/ (listen)) is a finite sequence of exact instructions used to solve a class of particular problems or carry out a calculation in mathematics and computer science.  For performing calculations and processing data, algorithms are employed as specifications. Advanced algorithms can do automated deductions (also known as automated reasoning) and employ logical and mathematical checks to reroute the execution of the code along several paths (referred to as automated decision-making).

What is the analysis of an algorithm?

The act of determining an algorithm's computational complexity—the amount of time, storage, or other resources required to execute it—is known as algorithm analysis in computer science. This typically entails formulating a function that connects the amount of an algorithm's input to the number of steps (time complexity) or storage locations (number of storage locations) it requires (its space complexity). When the values of this function are modest or increase slowly relative to an increase in the size of the input, an algorithm is said to be efficient.

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Answer:

(0, 0.04)

Explanation: Given that At time t = 0, a particle is at rest in the x‐y plane at the coordinates (x0, y0) = (6, 0) in. If the particle is then subjected to the acceleration components ax = 0.5 − 0.35t in./sec^2 and ay = 0.15t − 0.02t^2 in./sec^2.

differentiate ax and ay twice. That is, second derivatives to get the position

dax/dt =  − 0.35

d^2ax/dt^2 = 0

and

day/dt = 0.15 − 0.04t

d^2ay/dt^2 = 0.04

the coordinate of the particle after t = 6 sec will be (0, 0.04)

the graph will be linear

l

l

l\

l   \

l----  \----------------------------------------------------------------------------

l

The questions on Virtual Machines, all the statement are A ". A virtual machine treats hardware and the operating system kernel as though they were all hardware.", D"A virtual machine runs a complete operating system including its own kernel.", and E"The Mach 3 operating system provides a software emulation layer on top of its microkernel.".

The correct statements about virtual machines are A, D, and E.

A. A virtual machine treats hardware and the operating system kernel as though they were all hardware. This is true because virtual machines are designed to simulate a complete computer system, including hardware and software.

D. A virtual machine runs a complete operating system including its own kernel. This is also true because virtual machines are designed to simulate a complete computer system, which includes an operating system and its own kernel.

E. The Mach 3 operating system provides a software emulation layer on top of its microkernel. This is true because the Mach 3 operating system is designed to provide a layer of abstraction between the hardware and the software running on it, allowing for better flexibility and compatibility.

B. Ring 0 of the onion model of the layered approach to operating system structuring is rarely used, except for virtualization purposes. This statement is false because Ring 0 is actually the most privileged level of the onion model and is used for tasks such as memory management and scheduling.

C. The Java interpreter of the Java Virtual Machine is able to execute Java source code directly. This statement is false because the Java interpreter actually executes Java bytecode, which is a compiled version of Java source code.

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Answer:

the practice of using a network of remote servers hosted on the internet to store, manage, and process data, rather than a local server or a personal computer.

Explanation:

there u go

An architectural design that depicts visible objects that are positioned on a room or space's ceiling is known as a Reflected Ceiling Plan (or RCP). A RCP may consist of; heights of ceilings. Materials for ceilings, such as set plaster or ceiling tiles.

A mirrored ceiling plan is a crucial component of any project. It is equally significant to other drawings. It also guarantees that every line in your floor plan is straight. Above all, it aids vendors by letting them know how and where specific fixtures will be set up.

The Floor Plan is mirrored in the Reflected Ceiling Plan, or "RCP." The RCP looks up, whereas the Floor Plan is looking down.

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Fine grained of alkali igneous rocks cannot be used in cement because of the volume expansion caused by the Alkali-silica reaction, fine-grained igneous rocks cannot be used as aggregates in cement.

Extrusive igneous rocks have a fine-grained or aphanitic texture, with grains that are too small to see without a magnifying glass. The fine-grained texture suggests that the rapidly cooling lava did not have enough time to form large crystals. A petrographic microscope can be used to examine these tiny crystals.

The texture of an igneous rock (fine-grained vs coarse-grained) is determined by the rate at which the melt cools: slow cooling produces large crystals, while fast cooling produces small crystals.

The chemical reaction that occurs in both alkali cations and hydroxyl ions in the pore solution of hydrated cement paste and certain reactive silica phases present in concrete aggregates is known as the alkali-silica reaction (ASR).

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An automobile is best described as a system in physics because it is made up of interacting, interrelated, or interdependent parts that function collectively to form an operational whole.

In discussing the composition of automobiles, they can be best defined as a system. A system, in the physical sciences, is a group of interacting, interrelated, or interdependent parts that work together to form a complex whole. The parts of an automobile, such as the engine, transmission, wheels, etc., are all interdependent, working together to make the automobile function as a whole. This is similar to many natural and manufactured systems in our world, from biological ecosystems to complex human inventions.

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An automobile can be best defined as a complex niche system interaction component.

An automobile is most aptly characterized as a complex component within a specialized system of interactions. Each part, such as the engine, transmission, and wheels, plays a unique role within the larger system, and their assembly is crucial for the vehicle to function properly.

The term "niche system" highlights the specialized functions of each component, and "interaction component" emphasizes their interdependence in creating a functional vehicle, where individual parts work together harmoniously to achieve a common purpose.

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Complete Question:

Only when all of the parts of an automobile are assembled does it become a functional vehicle. In this way, an automobile is best defined as a(n) .................... niche system interaction component.

The difference equation, y[n] - 0.1y[n - 1] - 0.12y[n - 2] = x[n] - 0.4x[n - 1] is given for an LT i system with the input x[n] and output y[n]. The initial conditions are given as y[-1] = y[-2] = 2.

An LT i (Linear Time-Invariant) system has the following properties: Linearity - An input-output relationship is linear if it satisfies the principles of superposition and homogeneity. Time invariance - An input-output relationship is time-invariant if its response to an input is independent of when the input is applied.

The given difference equation represents a second-order linear constant coefficient difference equation with the input x[n] and the output y[n].The given difference equation is to be solved for the output y[n] given the input x[n] and the initial conditions y[-1] = y[-2] = 2.

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Answer:

The City can grant higher budgets to emergency services like the Fire Department, so a higher budget will allow engineers & scientists to innovate new technology and add more fire stations across the city.

Explanation:

Answer:

From electrical energy to radiation

Explanation:

A light bulb converts electrical energy to light, which is nothing more than radiation. Don't regard radiation as a bad thing, this light is non-iodizing radiation, which does not have the possibility to alter our DNA, and thus it's safe.

The simplest example can be found in old lights (obsolete now because they are vastly inefficient). This lights were just resistors which turned electrical energy into heat. A very hot material reflects light in the form of radiation, as described above.

Technologies like LEDs are more complicated to explain.

Answer:

For a deeper material truss, increase in distance between the top chord and bottom chord will cause the truss to bear more load with increase in Span

For Cantilever Truss ; increase in span will result in decrease in load bearing capacity of the truss

When a truss fails the areas that are affected are the supports of the truss and its corresponding spam. i.e. 4 crossbars at quarter of the span

Explanation:

The load-carrying capacity of a truss on the span  is basically based on the type of truss ,

For a deeper material truss, increase in distance between the top chord and bottom chord will cause the truss to bear more load with increase in Span

For Cantilever Truss ; increase in span will result in decrease in load bearing capacity of the truss

When a truss fails the areas that are affected are the supports of the truss and its corresponding spam. i.e. 4 crossbars at quarter of the span

Two different kinds of losses can happen in a three-phase induction motor. These losses are variable losses that are constant or fixed losses. Fixed or Constant Losses Consta.

Stator losses, including as stator iron loss and stator copper loss, are financed in part by this power input. Rotor input is provided with the leftover power, or (input electrical power - stator losses). Thus, rotor input P2 equals Pin minus stator losses (stator copper loss and stator iron loss).

Fixed losses, Copper losses, and stray losses are a few types of losses that can occur in three-phase induction motors. Core losses, bearing friction losses, brush friction losses (in wound rotor motors), and windage losses make up the majority of these losses.

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Fault location techniques are used in power systems for accurate pinpointing of the fault position.

This paper presents a comparative study between two fault location methods in distribution network with Distributed Generation (DG). Both methods are based on computing the impedance using fundamental voltage and current signals. The first method uses one-end information and the second uses both ends

The temperature of the gas in the tank is the ratio of heat capacities times the temperature of gas in the constant pressure line.

It should be noted that temperature simply means the measure of hotness and coldness in a body

From the given information, H is the enthalpy of gas on the constant pressure line, m is the mass flow rate and U is the internal energy of gas.

Here, the temperature of the gas in the tank is the ratio of heat capacities times the temperature of gas in the constant pressure line.

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Answer:

20% of the critical value. Determine (a) the damping factor, (b) the

Explanation:

The number of hours that must be travelled by car to make the risks of fatality by car equal to the risk of fatality by rock climbing is = 65hours

The FAR of car = 52

This means for every one hour there is risk of 52 people dying by car accident.

The FAR of rock climbing = 3400

This means that for every one hour there is risk of 3400 dying by car accident.

If FAR for 1 hour = 52

X hours = 3400

Make X the subject of formula,

X hours = 3400/52

= 65 hours approximately

Therefore, the number of hours that must be travelled by car to make the risks of fatality by car equal to the risk of fatality by rock climbing is = 65 hours.

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The Mechanical Advantage of a claw hammer being used to pull up floor nails with the distance from the worker's hand to the floor being 1 foot and the distance from the hammer head to the nail head being 1.5 inches is equal to 8.

Using the formula for Mechanical Advantage, MA = Resistance Force/ Effort Force.In this arrangement, the effort force is exerted by the worker's hand and the resistance force is the force required to pull up the floor nail.To solve for the Mechanical Advantage, the first step is to convert all the measurements to the same units. Therefore, the 1 foot distance from the worker's hand to the floor is equal to 12 inches.Using the formula for the Mechanical Advantage of this arrangement:MA = Resistance Force/Effort Force,The distance from the hammer head to the nail head is the effort distance, d_effort = 1.5 inches.

The distance from the worker's hand to the floor is the resistance distance, d_resistance = 12 inches.The Mechanical Advantage is therefore,MA = Resistance Force/ Effort ForceMA = d_resistance/ d_effortMA = 12/1.5MA = 8Therefore, the Mechanical Advantage of a claw hammer being used to pull up floor nails with the distance from the worker's hand to the floor being 1 foot and the distance from the hammer head to the nail head being 1.5 inches is equal to 8.

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Answer:

Keeps workers interested and motivated, helping reduce dangerous behavior and eliminate hazardous situations

Explanation:

Frequent hands-on training and practice drives home the message that safety is a critical part of any work site. Safety should always be a top concern for every company and organization.

K=2*L-1 is the relationship between the number of nodes (K) and leaves (L). Therefore, L and k do not always have a stable relationship.

Number of internal nodes for L leaves = L - 1

So total nodes = 2L – 1

The following relation applies for a k-ary tree where each node has k offspring or none at all: L = (k-1)*n + 1.

where n represents the number of internal nodes and L represents the number of leaf nodes.

Every internal node will have K children since the k tree is fully developed.

A pointer to the topmost node of the tree, sometimes referred to as the "root," serves as the representation of a binary tree. The root's value is NULL if the tree is empty. The following components are present in each node of a binary tree:

Pointer to left kid in data

to the right-hand kid

Basic Binary Tree Operation:

adding a new element.

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Retrofitting, a comprehensive process, can assist refrigeration plants in meeting their environmental control requirements.

Additionally, retrofitting can help make obsolete equipment that must be used in a contemporary workplace viable. R134a refrigerant makes the A/C blow chilly on hot days in the majority of cars that are now on the road. Almost all automobiles produced after 1994 have been fitted with R134 refrigerant, which was chosen for its low flammability, safety, and environmental friendliness. As of now, R-1234yf, a hydro fluoro olefin (HFO) refrigerant, is the refrigerant of choice to replace R134a in automobiles. The first American-built car to employ the new refrigerant was the 2013 Cadillac XTS.

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Answer:

(a) The functional unit used to compare is 20,000,000 lumen hours of light having a wavelength range of 450 nm to 600 nm

(b) 50,000 miles of use of each vehicle to convey passengers

(c) A proper functional unit is the annual safety and maintenance record estimated by the number of incidents recorded and maintenance performed per calendar year

Explanation:

The function of a product is the unambiguous  action it is meant to perform or the satisfaction it is meant to provide

Functional unit is a measure of the amount of a product function required to result in identified environmental impacts

(a) The functional unit used to compare CFL light bulb versus LED light bulb is 20,000,000 lumen hours of light having a wavelength range of 450 nm to 600 nm

The LED's lamp life span illumination is about and the wavelength is in the visible region

(b) Honda Civic Sedan versus Ford F150 Pickup

The functional unit here can be the the output input functions such as wear of the brake and tire, the amounts of emissions produced per amount of gasoline consumed multiplied by the function unit of 50,000 miles of use to convey passengers

(c)Suspension Bridge Connecting Italy and Sicily versus Underwater Tunnel connecting Italy and Sicily

A proper functional unit is the annual safety and maintenance record estimated by the number of incidents recorded and maintenance performed per calendar year.

The family should accept a minimum of Kshs.42,250,000.00 to avoid incurring a loss.

To obtain the total cost, the expenses for the land, trees and upkeep are summed up and subsequently reduced by 6. 5% using a discount rate.

Hence, it can be seen that a forced acquisition appraisal primarily focuses on three key factors: the land's market value, the expenses involved in replacing the property, and the potential harm caused to the owner's belongings.

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