What is the relational expression for the following mathematical inequality? (b) - 30 < M ≥ 20

When in regular operation, ash and other debris should be removed daily from the combustion chamber of a wood-burning heater.

A wood stove radiates heat as it warms up via the stove's top and walls. The nearby region is warmed by the radiant heat, which can also warm other areas of the house thanks to the natural airflow in the building.

Fans using electric or convection power can help move this heat around to warm a bigger space. Some wood stoves use a convection chamber that wraps around the firebox to combine radiant and convection heat into a single appliance. Cool air is drawn into this convection chamber where it is heated and then circulated once again around the space.

Ash and other debris should be taken out of a wood-burning heater's combustion chamber every day when it is in regular use.

To learn more about combustion chamber refer to;

https://brainly.com/question/7324023

#SPJ4

Answer:

diameter of the sprue at the bottom is 1.603 cm

Explanation:

Given data;

Flow rate, Q = 400 cm³/s

cross section of sprue: Round

Diameter of sprue at the top \(d_{top}\) = 3.4 cm

Height of sprue, h = 20 cm = 0.2 m

acceleration due to gravity g = 9.81 m/s²

Calculate the velocity at the sprue base

\(V_{base}\) = √2gh

we substitute

\(V_{base}\) = √(2 × 9.81 m/s² × 0.2 m )

\(V_{base}\) = 1.98091 m/s

\(V_{base}\) = 198.091 cm/s

diameter of the sprue at the bottom will be;

Q = AV = (π\(d_{bottom}^2\)/4) × \(V_{base}\)

\(d_{bottom}\) = √(4Q/π\(V_{base}\))

we substitute our values into the equation;

\(d_{bottom}\) = √(4(400 cm³/s) / (π×198.091 cm/s))

\(d_{bottom}\)  = 1.603 cm

Therefore, diameter of the sprue at the bottom is 1.603 cm

Answer:

Tech A is correct.          

Explanation:

A front-wheel-drive pulling to the left can result from several factors. One of them is definitely a faulty break.

A correct diagnosis linking the problem to the brakes is when there is an internal restriction and the pull is constant to one side and gets worse when the brakes are applied.

To confirm this, one would need to lift the vehicle and rotate each wheel by hand to check for excessive friction.

So the restriction may be caused by:

Cheers

The net positive suction head (NPSH) is define as the difference between the total head on the suction side and the pressure head of liquid vapor, velocity, and static. Therefore, the correct option is D- All of the above.

Net positive suction head (NPSH) is a pump industry term that describes the suction side of a centrifugal pump. It is the absolute pressure head, less the vapor pressure, at the pump suction port. The NPSH is defined as the total suction head in feet of liquid absolute, less the vapor pressure in feet absolute. It's also the amount of fluid that a pump needs to function properly. This head must be considered for any pump that is pumping a liquid, and it must be greater than the pump's NPSHr (net positive suction head requirement). It's a measure of the pressure required to keep a fluid from boiling. The most common cause of cavitation is the lack of NPSH. Cavitation is a problem because it generates noise, vibration, and damage to pumps, seals, and impellers.

A centrifugal pump's efficiency and capacity are both affected by NPSHA. Pumps can have severe damage or not function at all if the NPSHA is not enough for the NPSHR (required net positive suction head) of the pump being used.

Learn more about suction head visit:

brainly.com/question/33300429

#SPJ11

Answer:

  Va = -2.556 V

  Vb = 4.030 V

Explanation:

The two node voltages can be designated Va and Vb for the left and right nodes, respectively. KCL tells you the total of currents out of the node is zero. We can use this fact to write two equations for the node voltages.

  6 +(Va -Vb)(1/2 +1/3) +Va/5 = 0

  -7 +(Vb -Va)(1/3 +1/2) +Vb(1/8 +1/4) = 0

We can multiply the first equation by 30 and the second equation by 24 to clear fractions. Then the augmented matrix for the node voltages is ...

  \(\left[\begin{array}{cc|c}31&-25&-180\\-20&29&168\end{array}\right]\)

The solutions are ...

  Va = -340/133 ≈ -2.556

  Vb = 536/133 ≈ 4.030

_____

Additional comment

The magnitudes of the currents in the resistors are ...

  Ohms: amps

  2: 3.293

  3: 2.195

  4: 1.008

  5: 0.511

  8: 0.504

It is okay to lift one end of the vehicle B) As long as the wheels have been chocked.

This refers to the processes that are undertaken in order to undertake a task safely, both for the person executing the task and others around.

Hence, we can see that It is okay to lift one end of the vehicle B) As long as the wheels have been chocked

This is because it would enable the vehicle to be safely positioned so the wheels would not roll off and cause an accident.

This safety procedure allows a person to raise one end of a vehicle, if the wheels have been chocked, to keep them in place.

Read more about safety procedures here:

https://brainly.com/question/14367881

#SPJ1

The use of salt on snowy and icy roads could have a negative effect on Montgomery County's Water Supply. The salt used on the roads for melting ice can cause a number of issues for water supplies and ecosystems, and Montgomery County is no exception.

When salt is used to melt snow and ice on the road, it can dissolve into the water and run off into streams, rivers, and lakes. The salt lowers the freezing point of water and melts ice, but it also alters the chemical makeup of the water, making it more saline. It can also damage aquatic plants, animals, and fish that rely on freshwater systems.

Therefore, it is important to take steps to minimize the use of salt or to use alternatives, such as sand or beet juice, which are less harmful to the environment and water supplies.

You can learn more about Montgomery County at: brainly.com/question/29130712

#SPJ11

The two main benefits of the airline hub-and-spoke system are increased efficiency and connectivity.

The hub-and-spoke system allows airlines to streamline their operations by consolidating traffic through a central hub, which can help reduce costs and increase efficiency. By routing passengers through a single point, airlines can optimize aircraft usage and reduce turnaround times.

Additionally, the hub-and-spoke system provides greater connectivity and accessibility for travelers. It enables airlines to offer more direct flights to a wider range of destinations, even in smaller markets that may not have enough demand to support nonstop service. This can help improve the travel experience for passengers and make air travel more accessible overall.

Know more about airline hub-and-spoke system here:

https://brainly.com/question/31622317

#SPJ11

According to the question of disconnecting an air gun before inspection, tech B is correct.

What is gun?
Gun is a type of weapon that is typically used to fire bullets at a target. It is typically composed of a barrel, a chamber, a firing mechanism, and ammunition. Guns have been used for centuries as a tool for hunting, self-defense, and warfare. Guns are typically categorized by the type of ammunition they use, such as pistol, shotgun, or rifle. Guns can be used to shoot at a variety of targets, such as animals, clay pigeons, and even human targets. Guns are also used in competitive shooting sports. Although guns can be used for a variety of purposes, they have the

Although it is not possible to completely remove all hazards from a shop, it is important to take precautions such as disconnecting an air gun before inspecting it to help reduce the risk of injury.

To learn more about gun
https://brainly.com/question/17037232

#SPJ4

Effective operation of roller chain and gear couplings requires proper alignment and lubrication.

Roller chain coupling are compact and flexible couplings. They are used for low to moderate speed/torque applications. For effective operation they need to be maintained by applying lubrication and aligning.

Gear couplings are used for high speed and torque applications. For effective performance they need to be lubricated frequently and proper alignment is needed.

Hence effective operation of roller chain and gear couplings  requires proper lubrication and alignment.

Find out more at: https://brainly.in/question/17300990

two feet or less

Answer:

. What's an object in your everyday life that has a lot of Kinetic Energy? How do you know it has a lot?

"Something that has a lot of Kinetic Energy is a plane and a baseball . I know this because the baseball gets energy to it when its thrown which is giving in kinetic energy".

2.What's an object in your everyday life that has a lot of Potential Energy? How do you know it has a lot? "an object that has a lot of potential energy is Water that is behind a dam. A car that is parked at the top of a hill. A yoyo before it is released. I know this because

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors."

The value of the site is $10,472,000.

The total construction costs are:

$6,000/m2 * 10,000m2 + $400,000 = $64,000,000

The professional fees are:

$64,000,000 * 0.13 = $8,320,000

The total development costs are:

$64,000,000 + $8,320,000 = $72,320,000

The developer's return for risk and profit is:

$72,320,000 * 0.20 = $14,464,000

The total cost of the development is:

$72,320,000 + $14,464,000 = $86,784,000

The expected rent is:

$3,000/m2 * 8,000m2 * 12 months = $28,800,000

The initial yield is:

$28,800,000 * 0.07 = $2,016,000

The value of the site is:

$86,784,000 - $2,016,000 = $10,472,000

Read more about initial yield here:

https://brainly.com/question/14714924

#SPJ1

Answer:

Brain

Explanation:

Answer:

13.9357 horse power

Explanation:

Annealed copper

Given :

Width, b = 9 inches

Thickness, \($h_0=2.2$\) inches

K= 90,000 Psi

μ = 0.2, R = 14 inches, N = 150 rpm

For the maximum possible draft in one pass,

\($\Delta h = H_0-h_f=\mu^2R$\)

     \($=0.2^2 \times 14 = 0.56$\) inches

\($h_f = 2.2 - 0.56$\)

     = 1.64 inches

Roll strip contact length (L) = \($\sqrt{R(h_0-h_f)}$\)

                                             \($=\sqrt{14 \times 0.56}$\)

                                             = 2.8 inches

Absolute value of true strain, \($\epsilon_T$\)

\($\epsilon_T=\ln \left(\frac{2.2}{1.64}\right) = 0.2937$\)

Average true stress, \($\overline{\gamma}=\frac{K\sum_f}{1+n}= 31305.56$\) Psi

Roll force, \($L \times b \times \overline{\gamma} = 2.8 \times 9 \times 31305.56$\)

                                 = 788,900 lb

For SI units,

Power = \($\frac{2 \pi FLN}{60}$\)  

           \($=\frac{2 \pi 788900\times 2.8\times 150}{60\times 44.25\times 12}$\)

           = 10399.81168 W

Horse power = 13.9357

Answer:

The generator delivers current of 500.11 A

Explanation:

Given the data in the question;

mechanical energy delivered to the generator = 1500 hp

efficiency η = 80.0 %

terminal potential difference of the generator = 1790 V

we know that;

1 hp = 746 W

so

the mechanical energy delivered to the generator will be

Generator Input = ( 1500 × 746 )W = 1119000 W

So the generator output will be;

Generator Output = Generator Input × η

we substitute

Generator Output = 1119000 W × 80.0 %

Generator Output = 1119000 W × 0.8

Generator Output = 895200 W

So the Current will be;

\(I\) = Generator Output / terminal potential difference of the generator

we substitute

\(I\) =  895200 W / 1790 V

\(I\) =  500.11 A

Therefore, The generator delivers current of 500.11 A

The ER diagram for the Temporary Employment Corporation (TEC) based on the business rules given is given below: Attributes for Entities:

(One-to-Many)One candidate can have many job histories. (One-to-Many)One job history can belong to only one candidate. (One-to-One)One placement can belong to only one candidate. (One-to-One)One job opening can be placed by many placements. (One-to-Many)One candidate can have many placements.

In the given diagram below, all the relationships and primary keys are labeled correctly and the ER diagram is resolved for all M:N relationships and 1:N relationships. If you want to add more attributes to each entity, you can do it accordingly:

To know more about Employment visit:

https://brainly.com/question/17459074

#SPJ11

The bronze C86100 pipe's maximum shear stress with an outer diameter of 1. 5 in. is around 16.98 psi.

To find the maximum shear stress in the pipe, use the formula:

τ = F / (2A)

where τ = shear stress, F = applied force, and A = area on which the force is acting.

Assume that the force is evenly distributed around the circumference of the pipe, so the area on which it is acting is equal to the circumference times the thickness:

A = πD t

where D = outer diameter and t = thickness.

Substituting the given values:

D = 1.5 in

t = 0.125 in

F = 20 lb

A = πD t = π(1.5)(0.125) = 0.589 in²

Therefore, the maximum shear stress is:

τ = F / (2A) = 20 / (2 × 0.589) = 16.98 psi

So the maximum shear stress in the pipe is approximately 16.98 psi.

Find out more on shear stress here: https://brainly.com/question/20630976

#SPJ4

Answer:

the internet is a need everywhere to do work and games systems is a technology that is just a want.

Explanation:

2.1) The support reactions are calculated now: \(A_{x} = 10\,kN\), \(A_{y} = -10\,kN\), \(B_{y} = 30\,kN\).

2.2) The member CD is on tensile load and the member BC is on compressive load. \(F_{BC} \approx 28.284\,kN\), \(F_{CD} = 20\,kN\)

The dynamic situation of a mechanical system whose geometry cannot be neglected is described by Newton's laws and D'Alembert's principle. A planar system in equilibrium is described by the following formulae:

\(\sum F_{x} = 0\)     (1)

\(\sum F_{y} = 0\)     (2)

\(\sum M = 0\)     (3)

2.1) The support reactions can be found by assuming that the truss is a rigid solid:

\(\sum F_{x} = A_{x} - F = 0\)    (4)

\(A_{x} = F\)

\(A_{x} = 10\,kN\)

\(\sum M_{A} = F\cdot r_{BD} - G \cdot (r_{AB}+r_{CD}) + B_{y}\cdot r_{AB} = 0\)     (5)

\(B_{y} = \frac{G\cdot (r_{AB}+r_{CD})-F\cdot r_{BD}}{r_{AB}}\)

\(B_{y} =\frac{(20\,kN)\cdot (8\,m)-(10\,kN)\cdot (4\,m)}{4 \,m}\)

\(B_{y} = 30\,kN\)

\(\sum F_{y} = A_{y} + B_{y} - G = 0\)     (6)

\(A_{y} = G - B_{y}\)

\(A_{y} = 20\,kN - 30\,kN\)

\(A_{y} = -10\,kN\)

Note - The negative sign means that the real direction of the component is antiparallel to the assumed one.

2.2) If the entire system is at equilibrium, then every part of the system must be also at equilibrium. The joint is considered a particle and thus the D'Alembert's principle is not necessary. The member CD is on tensile load and the member BC is on compressive load.

\(\sum F_{x} = F_{BC} \cdot \cos 45^{\circ} - F_{CD} = 0\)     (7)

\(\sum F_{y} = -G + F_{BC}\cdot \sin 45^{\circ} = 0\)     (8)

By (8):

\(F_{BC} = \frac{G}{\sin 45^{\circ}}\)

\(F_{BC} \approx 28.284\,kN\)

By (7):

\(F_{CD} = F_{BC}\cdot \cos 45^{\circ}\)

\(F_{CD} = 20\,kN\)

To learn more on trusses, we kindly invite to check this: https://brainly.com/question/16757156

#SPJ1

The Java-based method is as follows: for(int index = myarray.length-1;) public static void Array Reverse

(int Array[]) index greater than or equal to 0; index--) System.out print (Array  "index" plus ");

The method public static void Array Reverse(int Array[]) is defined on this line.

This line iterates through the array from highest to lowest index for (int index = myarray.length-1; index>=0; index--)

The system prints the elements of the array in reverse. out. print(Mary [index]+");

However, before the method can be called, mar must be declared and filled in as an integer array. The reverse() method returns a reference to the same array in which the first array element is now the last and the last array element is now the first. In other words, the order of the array's elements will change in the opposite direction from what was stated earlier.

The most fundamental method for reversing an array is to iterate through it and swap its elements in such a way that they reverse the array—for example, swap the first element for the last, swap the second element for the second last, and so on—until we reach the middle of the array.

Learn more about reverse array :

brainly.com/question/30408417

#SPJ4

The primary goal of political parties in televised presidential debates is to: D. to explain party platforms to voters.

A political party can be defined as an organized group of individuals (people) who presumably share common political ideologies, aims, goals, vision, and strategies on how a country should be governed.

This ultimately implies that, a political party ​is an organization of people that are sharing similar political ideologies and it provides a platform for a chosen candidate to run as its sole representative in an election category.

In this context, the primary goal of political parties in televised presidential debates is to explain party platforms to the electorates or voters.

Read more on political parties here: https://brainly.com/question/26761164

It's D I just took the test

Edge 2023 :)

Answer:

1. TURN ON YOUR HAZARD/EMERGENCY LIGHTS

Turn on your hazard lights to warn other drivers as soon as you sense something's wrong. Keep them on until help arrives, recommends the National Motorists Association (NMA).

2. SLOW DOWN AND PULL OFF THE ROAD

Aim for the right shoulder of the road. Consumer reports recommends that you pull over to a safe, flat location that is as far away from moving traffic as possible.

3. TURN YOUR WHEELS AWAY FROM THE ROAD AND PUT ON THE EMERGENCY BRAKE

The California Department of Motor Vehicles (DMV) recommends pulling your emergency brake, sometimes called the parking brake. If you have to park on a hill or slope, turn the car's wheels away from the road to help prevent the care from rolling into traffic, says the California DMV.

4. STAY IN YOUR VEHICLE

If you're on a highway or crowded road, the Insurance Information Institute (III) recommends that you avoid getting out of your vehicle to look at the damage or fix a mechanical problem. If you need to get out of the car, get your vehicle to a safe place and make sure the road around you is completely clear. If you're stopped on the right-hand side of the road, get out through the passenger-side door.

5. BE VISIBLE

Once you're safely out of the vehicle, prop up your hood to let other drivers know they should proceed with caution. This will alert other drivers that you're broken down, according to the NMA.

6. SET UP FLARES OR TRIANGLES

Place flares or triangles with reflectors behind your car to alert other drivers to the location where you've stopped, says the III.

7. CALL FOR HELP

Call or use an app to get a tow truck, mechanic or roadside assistance to come help. your insurance company or other provider who may be able to help. If you're in an emergency situation or are not sure who to contact, call 911 or the local police for help.

Hope this helps :)

Answer:

i believe tungsten is stronger than titanium !

Types; 2 Auto body repair; 3 Auto glass repair; 4 See also; 5 References ... Independent automobile repair shops in the US may also achieve certification through manufacturer sponsored ...

To ensure that all memory addresses can be consistently written to and read from, run a memory test.

The BSOD is a warning that appears on the blue screen when your computer experiences an interruption and displays this warning. It is formally known as a "Stop mistake." The notification alerts you to a serious problem that is causing Windows to restart. If there is a problem that results in an unexpected shutdown or restart of your device, a blue screen error, also known as a stop error, may occur. Your device may display a blue screen with the notification that it needs to restart because of a problem. Keep in mind that the Blue Screen of system can harm your computer in addition to being inconvenient. This is in order to heal.

Learn more about system here-

https://brainly.com/question/27162243

#SPJ4

Answer:

i think D

Explanation: