When constructing a confidence interval for a population proportion, what is the formula for standard error?

Answer:

look online

Explanation:

Based on the information provided, the technician who is correct is: B. Technician B.

A braking system can be defined as a mechanical system which comprises various components that are designed and developed to bring an automobile vehicle in motion to a stop, when applied by a driver.

In order for a technician to diagnose a brake system, the following symptoms should be adequately and appropriately checked and used by the technician:

Based on the information provided, we can reasonably infer and logically deduce that the technician who is correct is Technician B because brake shoes are to be replaced in axle sets.

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Complete Question:

Tech a says that brake shoe linings saturated with brake fluid from a leaky wheel cylinder can be cleaned with brake cleaner and reused as long as they aren’t worn out. tech b says that brake shoes should be replaced in axle sets. who is correct?

Technician A.

Technician B.

Neither Technician A nor Technician B

Both Technician A and Technician B

Answer:

The Dependent Variable is the Effect, Its value depends on changes from the Independent Variable

Hope this Helps

According to the question the Absolute velocity of B is V_B = (-2cosθ, 2sinθ) m/s.

Velocity is the rate at which an object changes its position in a given direction. It is a vector quantity, meaning it has both magnitude (the speed of movement) and direction. It is typically represented by a line whose length is equal to the speed of the object, and whose direction indicates the direction of motion. Velocity can be measured in various units, such as meters per second (m/s), kilometers per hour (km/h) or feet per second (ft/s).

Absolute velocity of B:

V_B = (-2cosθ, 2sinθ) m/s

Absolute velocity of C:

V_C = (-2cosθ + 2sinθ, 2sinθ) m/s

Absolute angular velocity of rod BC:

ω_BC = 2rad/s

Absolute acceleration of C:

a_C = (-2sinθ, 2cosθ) m/s^2

Absolute acceleration of B:

a_B = (-2sinθ, 2cosθ) m/s^2

Absolute angular acceleration of rod BC:

α_BC = 0rad/s^2

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The power supply can be designed using a bridge rectifier, capacitors, and Zener diode.

Here is the design of a regulated power supply:

Type 1: 6V

Given Source Voltage= 110±10 Vrms

= 110 + 10

= 120V (Maximum)

Given Output Voltage = 6V ± 5%

= 6V ± 0.3V

Minimum Output Voltage = 5.7V

Maximum Output Voltage = 6.3V

So, taking the maximum voltage into account, the output voltage is 6.3V.

Let's find out the value of the Capacitors and Zener diode

Resistor value for the Zener diode:

For 6.3V, we can take a 5.1V zener diode.

A 1W zener diode can take maximum power = 1W.

If R is the load resistance, V is the input voltage and Vz is the zener voltage, then the resistor R required is given by:

\(R = \frac{{({V_s} - {V_z})^2}}{P}\)

Where

P = 1W, Vs = 120V, Vz = 5.1V

\(R = \frac{{(120 - 5.1)^2}}{1}\)

= 14,141\Omega

So, a 14k resistor will be used.

Capacitor value for rectification:

Now, we need to find the value of the capacitor for rectification.

Average DC Voltage = (Vmax-Vmin)/piFor full-wave rectifier, the average voltage is given by:

\(V_{avg} = \frac{{{V_s}}}{\pi }\)

For given source voltage,

Vavg = 38V

I = \(\frac{{P}}{{{V_s}}}\)

= \(\frac{1}{{120}}\)

= 0.008A

Where, P = 1W, Vs = 120V

Current through the diode = 0.008A.

Capacitance required is given by:

\(C = \frac{I \times T}{V_{ripple}}\)

Where T = 1/f = 1/60 = 0.0167s (time period) and Vripple = 1.4V.

1.4V ripple is taken for full-wave rectification.

\(C = \frac{0.008 \times 0.0167}{1.4}\)

= 0.000095

F = 95µF

Therefore, a 14k resistor, 95µF capacitor, and 5.1V zener diode are used in the design of the power supply.

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Answer:

the material's toughness, in terms of energy absorbed until fracture, is 98 kJ.

Explanation:

Step 1: Calculate the strain at the yield point:

Given that the cross-sectional area of the specimen is 0.004 m², and it yielded at a load of 280 kN (280,000 N), we can calculate the stress at the yield point:

Stress = Load / Cross-sectional area

Stress = 280,000 N / 0.004 m²

Stress = 70,000,000 N/m² (or Pa)

Using Hooke's Law, we know that stress is equal to the modulus of elasticity (E) multiplied by the strain (ε) at the yield point:

Stress = E * Strain

70,000,000 N/m² = 200,000,000,000 N/m² * Strain (converting E from GPa to N/m²)

Strain = 70,000,000 / 200,000,000,000

Strain = 0.00035

Step 2: Calculate the strain energy up to the yield point:

Strain energy (U) = (1/2) * Stress * Strain * Volume

We can assume that the volume remains constant during the test, so:

Strain energy (U) = (1/2) * Stress * Strain * Cross-sectional area * Length

For simplicity, let's assume the length of the specimen is 1 meter (this assumption won't affect the toughness calculation since it is based on energy per unit volume). Substituting the values:

Strain energy (U) = (1/2) * 70,000,000 N/m² * 0.00035 * 0.004 m² * 1 m

Strain energy (U) = 98,000 J (Joules)

Step 3: Convert the strain energy to kilojoules (kJ):

Toughness = Strain energy / 1000

Toughness = 98,000 J / 1000

Toughness = 98 kJ

Answer:

true

Explanation:

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

Your friend can use a step-down transformer to operate the coffeemaker at the USA-standard 120 V. This transformer will reduce the voltage from 240 V to 120 V, which is what the coffeemaker requires.

In terms of the current draw, we can use the formula P=IV, where P is power (in watts), I is current (in amperes), and V is voltage (in volts). Since the coffeemaker is rated at 960 W, and the voltage is now 120 V, we can calculate the current draw as I = P/V = 960/120 = 8 A.

To find the resistance of the coffeemaker, we can use the formula R=V/I, where R is resistance (in ohms), V is voltage (in volts), and I is current (in amperes). Again, since the voltage is now 120 V and the current is 8 A, we can calculate the resistance as R=V/I = 120/8 = 15 ohms.

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Answer:

<:

Explanation:

Answer:

d

Explanation:

The type of Pass that Joe Maylan should be given is called; Temporary Pass

In factories or industries, there are different types of pass given to workers and visitors visit such places on a daily basis. In this case Joe maylan is going to do a job in the company for just 2 days and as such the type of pass he willl get will be a temporary pass.

It will be a temporary pass because it is a document pass issued for short-term use or due to an emergency.

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Answer: true

Explanation:

Answer:

Explanation:

The camshaft lobe moves the lifter upwards, which moves the pushrod. The top end of the pushrod pushes on the rocker arm, which opens the valve.

Answer: Cleaning of mechanical parts is necessary to remove contaminants, and to avoid clogging of wastes which could restrict the functioning of the machine.

Explanation:

There are different agents used for cleaning different machine instruments to prevent their corrosion and experience proper cleaning.

Backing plates must be dry cleaned using a cotton cloth to remove the dirt, dust or any other dry contaminant.

Struts can be wet cleaned by applying alcoholic solvent.

Levers can be cleaned using a mineral spirit.

Metallic plates can be cleaned using water based solution or water.

If the input frequency to a 6-bit counter is 10 MHz The frequency at the output terminals is 5 MHz.

The output frequency depends on which output terminal is being considered. Given that the counter is 6-bit counter, the number of output terminals is 6. The output frequency can be calculated by considering the input frequency and the modulus of the counter. Divide input frequency by the modulus of the counter to get the output frequency. So, for the 6-bit counter, the modulus is 2⁶ = 64.

Therefore, the output frequency at the following output terminals would be:

Q0 = 10 MHz / 64 = 156.25 kHzQ1 = 10 MHz / 32 = 312.5 kHzQ2 = 10 MHz / 16 = 625 kHzQ3 = 10 MHz / 8 = 1.25 MHzQ4 = 10 MHz / 4 = 2.5 MHzQ5 = 10 MHz / 2 = 5 MHz

The output frequency depends on which output terminal is being considered. Given that the counter is 6-bit counter, the number of output terminals is 6. The output frequency can be calculated by considering the input frequency and the modulus of the counter.

Divide input frequency by the modulus of the counter to get the output frequency. So, for the 6-bit counter, the modulus is 2⁶ = 64.

Therefore, the output frequency at the following output terminals would be:

Q0 = 10 MHz / 64 = 156.25 kHzQ1 = 10 MHz / 32 = 312.5 kHzQ2 = 10 MHz / 16 = 625 kHzQ3 = 10 MHz / 8 = 1.25 MHzQ4 = 10 MHz / 4 = 2.5 MHzQ5 = 10 MHz / 2 = 5 MHz

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The processing parameters significantly influence the properties of aluminium alloy A357 manufactured by Selective Laser Melting (SLM).

In Selective Laser Melting (SLM), the processing parameters play a crucial role in determining the quality and characteristics of the manufactured aluminium alloy A357. Several key parameters need to be considered:

1. Laser Power: The laser power determines the energy input into the powder bed. Higher laser power leads to increased melting and higher density of the parts, but excessive power may cause defects and thermal distortion.

2. Scanning Speed: The scanning speed controls the rate at which the laser moves across the powder bed. Faster scanning speed can reduce the heat accumulation and promote rapid solidification, but it may also result in insufficient melting and decreased part density.

3. Hatch Spacing: The hatch spacing refers to the distance between adjacent laser scan paths. Optimal hatch spacing ensures good part density while minimizing the formation of voids and defects.

4. Layer Thickness: The layer thickness determines the height of each layer in the build. It affects the surface roughness, accuracy, and build time. Thinner layers provide better resolution but increase the build time.

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KINDLY NOTE that there is a picture in the question. Check the picture below for the picture.

==================================

Answer:

(1). 1.2 metres.

(2). There is going to be the same pressure.

Explanation:

From the question above we can take hold of the statement Below because it is going to assist or help us in solving this particular Question or problem;

" Measurements indicate that the material of tank B will fail and the tank will burst if the air pressure in tank B exceeds 18 kPa."

=> Also, the density of oil = 930

That is if Pressure, P in B > 18kpa there will surely be a burst.

The height, h the can waste oil be poured into tank A is;

The maximum pressure  = height × acceleration due to gravity × density) + ( acceleration due to gravity × density × height, j).

18 × 10^3 = (height, h ×  10 × 930) + 10 × (2 - 1.25) × 1000.

When we make height, h the Subject of the formula then;

Approximately, Height, h = 1.2 metres.

(2). If air is accidentally trapped in the manometer line, what will be the error in the calculation of the height we will have the same pressure.

The center of mass of a baseball bat would be located nearer to the heavier end. This is because the distribution of mass is not uniform along the length of the bat, with the heavier end having more mass concentrated in that area.

The center of mass of a baseball bat would be located closer to the heavier end. This is because the mass of the bat is not evenly distributed throughout its length, with the barrel being heavier than the handle.

As a result, the center of mass is shifted towards the heavier end, making it closer to that end.

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Answer:

True

Explanation:

It's just because of the processing

Answer:

I'm pretty sure its b

Explanation:

Answer:

  see attached

Explanation:

As you know, a full adder produces the binary value in (carry, output) that is the the number of true input bits among the (carry in, A, B) inputs.

The annotated diagram attached shows the bit values for a 4-bit full adder/subtractor.

__

Additional comment

If the numbers are considered "signed", then the top diagram will generate an "overflow" based on the difference between the carry C4 and the output O4.

Answer:

Normal Stress = 200 units / Area of the tube face

hope this helps:)

Explanation:

Total density = 165.36 pcf, Dry density = 70.2 pcf,  Degree of saturation = 0.181 or 18.1%, Saturated density = 94.91 pcf.

Given:

Void ratio e=0.75

Water content W=36%

Specific gravity G=2.65

a) Total density (pcf)

The total density is given by ρt= G ρw, where G is specific gravity of soil solids, and ρw is the density of water.

ρw= 62.4 pcf (given)

ρt = G ρw = 2.65 × 62.4 = 165.36 pcf

Therefore, Total density = 165.36 pcf

b) Dry density (pcf)

The relation between dry density and void ratio is

e= Vv / Vsw

= (Vt - Vs) / Vsw

= (ρt - ρ) / ρ

γd = (1 + e) γw

= (1 + e) / G ρw

= (1 + 0.75) / 2.65 × 62.4

= 0.070 pcf

γd= 70.2 pcf

Therefore, Dry density = 70.2 pcf

c) Degree of saturation

The degree of saturation is defined as, S = Vw / Vv

S = W / (G s e) = 0.36 / (2.65 × 0.75)

= 0.181 or 18.1%

Therefore, Degree of saturation = 0.181 or 18.1%

d) Saturated density (pcf)

γsat = (G s / (1 + e)) γw

γsat = (2.65 / 1.75) × 62.4

= 94.91 pcf

Therefore, Saturated density = 94.91 pcf.

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Motors, generators, electromechanical solenoids, relays, loudspeakers, hard drives, MRI machines, scientific instruments, and magnetic separation equipment all employ electromagnets as components.

Every magnet has a north and a south pole. Like poles repel, but opposite poles attract.

Electrons in magnet atoms spin predominantly in one direction around the nucleus, which is how the two poles are formed. Magnetic force goes from the magnet's north pole to its south pole.

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Answer: C. Biotechnology system

Explanation:

Answer:

- weather refers to short-term changes in the atmosphere

- climate describes what the weather is like over a long period of time in one area.

The volumetric compression ratio of the diesel engine is 20:1.

To calculate the volumetric compression ratio, we need to compare the initial and final volumes of the engine's cylinder. The volumetric compression ratio (r) is given by:

r = (V₁ / V₂)

where V₁ is the initial volume (before compression) and V₂ is the final volume (at peak pressure).

Given that the initial pressure (P₁) is 100 kPa and the peak pressure (P₂) is 5000 kPa, we can use the ideal gas law to relate the pressures and volumes:

(P₁ * V₁) / T₁ = (P₂ * V₂) / T₂

where T₁ and T₂ are the initial and final temperatures respectively. Since we are not given the initial and final volumes, we cannot solve for the exact compression ratio. However, we are given the peak pressure (P₂) and the maximum temperature (T₂). We can assume that the initial temperature (T₁) is constant, and given the pressure and temperature values, we can calculate the volumetric compression ratio as:

r = (P₂ * V₂) / (P₁ * V₁) = (5000 kPa * V₂) / (100 kPa * V₁) = 20:1

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