Design a circuit that make a tone of the buzzer 75% of the time on and 25% of the time off.
( using arduino and proteus)

Explanation:

Manages the boot process.

Improper lubrication can lead to mechanical failure, leaving you stranded or at risk of losing control of your vehicle.

When your engine and transmission lack proper lubrication, the resulting friction can have severe consequences. Insufficient lubrication means that the moving parts within your engine and transmission are not adequately protected from the wear and tear that occurs during normal operation. This lack of lubrication leads to increased friction, which generates heat and can cause components to seize or wear out prematurely.

If your engine or transmission fails due to improper lubrication, you may find yourself stranded on the road with a non-functioning vehicle. This can be both inconvenient and potentially dangerous, especially if it occurs in an isolated or unfamiliar location. Additionally, excessive friction can result in a loss of control over your vehicle, increasing the risk of accidents and compromising your safety.

Learn more about lubrication

brainly.com/question/24934810

#SPJ11

The largest positive number that can be represented in 13 bits for the two cases are

A) Unsigned number

\((2)^n - 1 = (2)^{13} - 1 = 8191\)

In Binary - \((1111111111111)_2\)

In decimal - \((8191)_{10}\)

In hexadecimal - \((1FFF)_{16\)

B) Signed number

\(2^n = 2^{13} = 8192\)

The range is from \((2^n-1)\)

therefore, the maximum value is \((4096)_{10}\)

In binary - \((1000000000000)_2\)

In hexadecimal - \((1000)_{16}\)

For more information on Binary numbers, visit

https://brainly.com/question/21285223

According to ASME Boiler and Pressure Code, water columns are required on all steam boilers.

The purpose of a water column is to provide a visual indication of the water level in the boiler. This is important because if the water level in the boiler gets too low, it can cause damage to the boiler and be a safety hazard.

The ASME Boiler and Pressure Code sets safety standards for boilers and pressure vessels, and it requires water columns to be installed on all steam boilers. The water column typically consists of a vertical pipe with a valve at the bottom and a glass sight gauge at the top, which allows the operator to visually check the water level.

Additionally, some states and municipalities may have their own regulations regarding water columns and boiler safety, so it's important to be familiar with the relevant codes and standards in your area.

For more questions like Water click the link below:

https://brainly.com/question/28465561

#SPJ11

A machine that, by virtue of the law of conservation, cannot ever continue to function by using energy from outside sources.

Any tool that simplifies work by adjusting a force is a machine. Every time a force pushes an item over a distance, work is done. Simple machines, the building blocks of all other machines, come in six different varieties. These include the wheel and axle, inclined planes, lever, wedge, and screw.

Its wheel and axle, the pulleys, inclined planes, screw, wedge, and lever are examples of simple devices that are frequently employed. Simple machines may increase or decrease the energies that are applied to them, but they have no effect on the overall.

To know more about machines visit:

brainly.com/question/13001849

#SPJ4

Answer:

Domain 1: Biological (includes neuroscience, consciousness, and sensation) Domain 2: Cognitive (includes the study of perception, cognition, memory, and intelligence) Domain 3: Development (includes learning and conditioning, lifespan development, and language) i hope this helps you.

The expression for coefficient of heat performance is; K = H/P

We are given the expressions;

Coefficient of performance = K

Rate of heat removal = H

Power consumption = P

Formula for coefficient of performance is usually;

K = Q/W

However, the rate of heat removal H can be further expressed as;

H = Q/T

Where;

Q is heat removed

T is time

Similarly, for power consumption, it can also be expressed as;

P = W/T

Where;

W is workdone

T is time taken

Thus, Q = HT and W = PT

Finally;

K = HT/PT

K = H/P

Read more about coefficient of performance at; https://brainly.com/question/13756267

Answer:

The torque at the end of the beam is 2.5 Nm

Explanation:

Given;

length of beam, r = 0.5 m

applied force, F = 5 N

The torque at the end of the beam is given by;

τ = F x r

where;

τ  is the torque

F is applied force

r is length of the beam

τ = 5 x 0.5

τ = 2.5 Nm

Therefore, the torque at the end of the beam is 2.5 Nm

Now hear me out: Steel-Coated Coconuts

If you want to make a coconut harder you can take that shell up to heights its natural husk never even knew it could reach! Combining the raw, brown scraglley-ness with the tough, durable properties of steel would most definitely make a coconut harder.

Valid answer? Probably not.

Thank you for coming to TedTalk :))

Answer:

The reason for their unusual properties of the greasy feel and low hardness is that the chemical bonds between the sheets is so weak that very low stresses can allow slip between the sheets.

Explanation:

Talc is a monoclinic mineral with a sheet structure similar to the micas and also has perfect cleavage that follows planes between the weakly bonded sheets.

Now, these sheets are held together only by van der Waals bonds and this allows them to slip past each other easily. Thus, this unique characteristic is responsible for talc's extreme softness, its greasy, soapy feel, and its value as a high-temperature lubricant.

While for graphite, it's carbon atoms are linked in a hexagonal network which forms sheets that are one atom thick. It's sheets are poorly connected and easily cleave or slide over one another when subjected to a small amount of force. Thus, gives graphite its very low hardness, its perfect cleavage, and its slippery feel.

So, we can conclude that the reason for their unusual properties is that the chemical bonds between the sheets is so weak that very low stresses can allow slip between the sheets; hence, the greasy feel and low hardness.

A distributed database refers to a database management system in which all databases are not connected on the same server.

To learn more about distributed database refer to :

https://brainly.com/question/28271067

#SPJ4

For a single-phase alternating circuit, it takes approximately 0.0041 seconds for the current to reach 6 A for the first time. and it takes approximately 0.0011 seconds to reach -100 V for the second time.

f. To calculate the time taken for the current to reach 6 A for the first time, we need to solve the equation:

i = 9.4sin(377t - π/3) = 6

Let's solve this equation for t:

9.4sin(377t - π/3) = 6

Dividing both sides by 9.4:

sin(377t - π/3) = 6/9.4

sin(377t - π/3) ≈ 0.6383

we need to find the inverse sine (arcsine) of 0.6383. However, since arcsine has multiple solutions, we need to consider the principal value between 0 and 2π. The principal value of arcsine(0.6383) is approximately 0.6949 radians or 39.82 degrees.

Now, we can solve for t:

377t - π/3 = 0.6949

377t = π/3 + 0.6949

t = (π/3 + 0.6949) / 377

Calculating this expression, we get:

t ≈ 0.0041 seconds

g. To calculate the time taken to reach -100 V for the second time, we need to solve the equation:

v = 209sin(377t - π/12) = -100

Let's solve this equation for t:

209sin(377t - π/12) = -100

Dividing both sides by 209:

sin(377t - π/12) = -100/209

we need to find the inverse sine (arcsine) of -100/209. Again, since arcsine has multiple solutions, we need to consider the principal value between 0 and 2π. Let's denote arcsine(-100/209) as α:

α ≈ arcsin(-100/209)

Calculating this, we get:

α ≈ -0.5535 radians or -31.68 degrees

Now, we can solve for t:

377t - π/12 = α

377t = π/12 + α

t = (π/12 + α) / 377

Calculating this expression, we get:

t ≈ 0.0011 seconds

You can learn more about single-phase at: brainly.com/question/33355322

#SPJ11

The building envelope is an essential component of any structure, providing a protective barrier between the interior and exterior of the building. By controlling the flow of air, moisture, and heat, the building envelope ensures the indoor air quality and energy efficiency of the building.

The components of the building envelope include the walls, roofs, windows, doors, and foundation of the building, as well as insulation and other materials. The primary purpose of the building envelope is to provide a protective barrier against the elements, ensuring the interior of the building is insulated from the outside climate. The building envelope also helps to maintain indoor air quality, as it reduces the amount of air infiltration from outside. In addition, the building envelope increases the efficiency of the building’s heating and cooling systems, reducing energy consumption and costs.

In order to maintain its protective barrier, the building envelope must be constructed with durable and weather-resistant materials. Additionally, the building envelope should be properly sealed to reduce air leakage. Windows and doors should be designed to minimize the risk of water infiltration, while insulation should be installed to reduce heat transfer.
You can learn more about building envelopes at: brainly.com/question/28163927

#SPJ11

The Safety Data Sheets are designed to make it easier for employees to get health and safety information about chemicals (Option A). They are fundamental for handling hazardous chemicals.

Safety Data Sheets are pieces of useful information developed by a manufacturer of a hazardous chemical.

These sheets (safety data sheets) include different types of data including, among others, chemical properties; physical hazards, environmental hazards, etc.

Safety data sheets also include different measures for the safety and protection of overall health, which is often related to issues such as, for example, how to store and/or transport the target chemical.

Learn more about the safety data sheets here:

https://brainly.com/question/14210540

Answer:

i'll help you but there is no question to answer??

Low horizontal lines, an open floor plan, and long, ground-hugging lines are phrases used by Frank Lloyd Wright to describe the houses he created, such as the Robie house.

To learn more about  frank Lloyd, refer to:

https://brainly.com/question/24196635

#SPJ4

Answer:

Hello There!!

Explanation:

The answer is territorial.

hope this helps,have a great day!!

~Pinky~

\(\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}\)

The county is normally the state's largest political and Territorial unit.

Answer:

The electric ceiling fan was invented in 1882 by engineer and inventor, Philip Diehl. He had earlier invented an electric sewing machine and adapted the motor from this invention to create the ceiling fan. He called his invention the “Diehl Electric Fan” and it was such a success that he soon had many other people competing with him.

Explanation:

The company should go with the out-house treatment option, as it has a lower annual worth value and will result in lower costs over the 11-year period.

GivenDataAn oil refinery finds that it is necessary to treat the waste liquids from a new process before discharging them into a stream. The treatment will cost $40,000 the first year, but process improvements will allow the costs to decline by $4,000 each year.An outside company will process the wastes for the fixed price of $20,000/year throughout the 11 year period, payable at the beginning of each year.MARR = 7%FormulaAnnual Worth (AW) = (P/A, i%, n)Annual Worth (AW) = Present Worth (PW) + Future Worth (FW)Where,P = Initial Cost (Present Worth)A = Capital Recovery Factori = InterestRaten = Life of the ProjectCalculationFirst of all, we calculate the AW of in-house treatment. The cash outflow would be $40,000 in year 0, then $36,000 ($40,000 – $4,000) in year 1, then $32,000 ($36,000 – $4,000) in year 2, and so on until year 10, and the cash inflow would be $0 as there is no salvage value.Annual Worth (AW) = (P/A, i%, n)Present Worth (PW) = $40,000Future Worth (FW) = $0Capital Recovery Factor (CRF) = (i(1 + i)n)/((1 + i)n – 1) = (0.07(1 + 0.07)11)/((1 + 0.07)11 – 1) = 0.122053Annual Worth (AW) = (P/A, i%, n)= ($40,000/0.122053)= $327,814.53Therefore, the AW of in-house treatment is $327,814.53.Now, we calculate the AW of out-house treatment. The cash outflow would be $20,000 in each year from year 0 to year 10, and the cash inflow would be $0 as there is no salvage value.Annual Worth (AW) = (P/A, i%, n)Present Worth (PW) = $20,000Capital Recovery Factor (CRF) = (i(1 + i)n)/((1 + i)n – 1) = (0.07(1 + 0.07)11)/((1 + 0.07)11 – 1) = 0.122053Annual Worth (AW) = (P/A, i%, n)= ($20,000/0.122053)= $163,907.27Therefore, the AW of out-house treatment is $163,907.27. AW in-house treatment = $327,814.53 AW out-house treatment = $163,907.27.

Learn more about annual worth value here :-

https://brainly.com/question/31488394

#SPJ11

Answer:

Following are the solution to the given question:

Explanation:

The material is necessary to cook since frying is a speedy process for evaporation.

Drug A is now in the compressed fluid area, and the material would not boil if the pressure is chilled. Because the ship is solid, its substance A claim is false.

Unless the volume comprises of a drop in the heat, the B substance reaches a vapor pressure area and a wet region. That's the area that melting may occur. His claim for material B could therefore be true.

This equation can be solved using the predictor-corrector (Heun's) method. This method is an explicit method. The prediction is based on Euler's method. This equation can also be solved using Runga-Kutta (4th order), implicit Euler, and Crank-Nicholson models.

Efflux time for Tank with Exit Pipe

Efflux time is defined as the time period in which a particular substance or solution flows from one region to another. The time required to drain the tank (not the pipe) can be modeled using a quasi-steady state mass balance with a steady-state mechanical energy balance.

The program can be written to generate the f vs Re plot by using Colebrook's equation for various ε/d. The time needed to drain the tank can be simulated using predictor-corrector (Heun's) method, Runga-Kutta (4th order), implicit Euler, and Crank-Nicholson models.

Let us consider the parameters given in the problem:

H = 2 m

L = 5 m

R = 0.5 m

Ro = 0.0254 m

The initial condition of the system is as follows: the tank and pipe are full of fluid of density ρ = 1000 kg/m³ and viscosity μ = 1 cp. The governing equation for this process is Bernoulli's equation. There are two sources of energy: gravitational potential energy and kinetic energy.

Let us consider the following assumptions to model the system:

i. Fluid is incompressible.

ii. Flow is frictional.

iii. The pipe diameter is constant.

iv. Flow is steady, and there are no external forces acting on the system.

v. The fluid is Newtonian.

vi. The mass of fluid is constant.

The first step is to develop Bernoulli's equation. The equation is given as:

ρgh1 + (ρ/2)u1² + P1 = ρgh2 + (ρ/2)u2² + P2 + fL/D(ρ/2)u²

Where:

ρ = 1000 kg/m³

u = velocity

h = height

P = pressure

f = friction factor

L = length

D = diameter of the pipe

At the inlet, u1 = 0, and P1 = Po

At the exit, h2 = 0, P2 = 0

Therefore, Bernoulli's equation can be simplified as:

ρgh1 + Po = (ρ/2)u² + fL/D(ρ/2)u²

For the purpose of the quasi-steady state mass balance, the following equation is used:

ρAh(t)dh/dt = - Cdi * A * sqrt(2g*h(t))

Where:

dh/dt is the rate of efflux in m/s.

h(t) is the height of fluid in the tank.

A is the cross-sectional area of the tank.

Cdi is the coefficient of discharge.

This equation can be simplified to the following form:

dh/dt = - (Cdi/ρA) * sqrt(2*g) * sqrt(h(t))

Where:

h(t) is the height of fluid in the tank.

t is the time taken by the fluid to drain from the tank.

Cdi is the coefficient of discharge.

Learn more about Efflux time:

https://brainly.com/question/12973014

#SPJ11

Answer:

A

Explanation:

Primary radial system

Answer:

I think its A

Explanation:

Answer:

a. impossible

b. possible and reversible

c. possible and irreversible

Explanation:

a. 1000kw

Qh - Wnet

we have

QH = 1500

wnet = 1000

1500 - 1000

= 500kw

σcycle = \(-[\frac{QH}{TH} -\frac{QC}{TC} ]\)

Qh = 1500

Th = 1000

Tc = 500

Qc = 500

\(-[\frac{1500}{1000} -\frac{500}{500} ]\)

solving this using LCM

= -0.5

the cycle is impossible since -0.5<0

b. 750Kw

Qc = 1500 - 750

=750Kw

Qh = 1500

Th = 1000

Tc = 500

Qc = 750

σ-cycle

\(-[\frac{1500}{1000} -\frac{750}{500} ]\\= 1.5 -1.5\\= 0\)

This cycle is possible and it is also reversible

c. 0 kw

Qc = 1500-0

= 1500

Qh = 1500

Th = 1000

Tc = 500

Qc = 1500

σ- cycle

\(-[\frac{1500}{1000} -\frac{1500}{500} ]\\-(1.5-3)\\-(-1.5)\\= 1.5\)

1.5>0

so this cycle is possible and irreversible

Thermocouples are temperature sensors that generate a voltage when there is a difference in temperature between two junctions. However, the voltage produced by one thermocouple is usually very small - typically only a few millivolts. To increase the output voltage, multiple thermocouples can be connected together in series.

This connection of multiple thermocouples in series is referred to as a "thermopile". A thermopile consists of several thermocouples connected in series, with each thermocouple adding its small voltage to the overall output voltage. The result is a higher voltage signal that is more easily measured by instruments or controllers.

The use of a thermopile has several advantages over using a single thermocouple. First, it provides a larger voltage signal, which makes it easier to measure accurately. Second, a thermopile can be more sensitive to changes in temperature than a single thermocouple. Finally, since a thermopile generates a higher voltage signal, it can be used over longer distances without suffering from signal degradation.

In summary, connecting thermocouples in series to form a thermopile is a common technique for increasing the voltage output of these temperature sensors. This method allows for more accurate and sensitive measurements, making it useful in a wide range of applications, including industrial process control, laboratory research, and environmental monitoring.

learn more about Thermocouples here

https://brainly.com/question/31473735

#SPJ11

a) The Gantt chart view for the project is shown below. The finish date is April 6, 2023. The critical path is A-B-E-F-H-I-K-L and its duration is 25 days.

b) The critical chain view of the schedule without buffers is shown below. The critical chain is A-C-D-E-G-H-I-J-K-L and its duration is 18 days. Adding the project buffer of 25% of the critical chain duration (4.5 days) and the feeding buffers, the end date is April 10, 2023.

c) The Gantt chart view for all three projects with doubled task durations is shown below. The finish date is May 13, 2023.

d) The critical chain view of the schedule with aggressive durations and no multi-tasking is shown below.

The critical chain is A-C-D-E-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z-AA-AB-AC-AD-AE and its duration is 21 days. Adding the project buffer of 25% of the critical chain duration (5.25 days) and the feeding buffers, the end date is May 23, 2023.

e) Adding a capacity buffer of 50% of the last task Jack is on before moving to the next project between projects, the end date is May 30, 2023.

f) Assuming the test lab is the drum resource, adding a capacity buffer of 50% of the last task in the test lab before moving to the next project, the end date is June 3, 2023. If both Jack and the test lab are drum resources, capacity buffers need to be added between projects for both resources. The overall end date will depend on the size of the buffers added.

g) This exercise highlights the importance of using critical chain method for scheduling projects and the impact of multi-tasking on project schedules.

Organizations can use software tools to manage multiple projects and resources, such as resource leveling and critical chain scheduling, to ensure that resources are not overworked and that project schedules are realistic. In addition, clear communication and collaboration among project teams and stakeholders are essential to manage risks and resolve conflicts in a timely manner.

Read more about scheduling projects here:

https://brainly.com/question/12310554

#SPJ1

Answer:

  48.00 microamps

Explanation:

The base voltage is limited by the zener to 5.5 V. If we assume the B-E voltage drop is 0.7 V, then the voltage across RE is 5.5-0.7 = 4.8 volts. That means the emitter current is 4.8/2.0k = 2.4 mA.

The base current is that amount divided by (1+β), so is 2.4 mA/(1+49) = 48 μA.