Two technicians are discussing the FMVSS 135 standards for parking brakes. Technician A states that the hand force required to set the brake should not exceed 80 lb. Technician B states that the foot force to set the brake should not exceed 80 lb. Which technician is correct?

Answer:

The answer is B. I hope this helps!

Explanation:

B is the only answer with a scientific explanation. You cannot change lead into gold, quartz can't protect you from illness, and the positions of stars and planets have no effect on a person.

The closest response option, based on thermal characteristics, is (c), which states that the temperature is 146 degrees Celsius.

To determine at what temperature you should slow down the rate of heating to 1∘C/min, we need to consider the thermal properties of the substance being heated. One important factor to consider is the rate of temperature change at which the substance undergoes phase transitions.

In this case, the substance melted at 156∘C. To prevent the substance from decomposing or degrading, it is important to slow down the rate of heating before it reaches its boiling point or before it undergoes any other phase transitions.

Based on the available information, it is not clear what type of substance is being heated. Different substances have different thermal properties, and the rate of heating required to prevent degradation or decomposition may vary. However, a commonly used rule of thumb is to slow down the rate of heating by half when the substance is within 10-20 degrees of its melting point. This means that the rate of heating should be slowed down at around 146 degrees Celsius (156-10) to 136 degrees Celsius (156-20), depending on the substance and the specific experimental conditions.

The type of material being tested will determine the response to this inquiry. When the temperature is within 10 to 20 degrees Celsius of the anticipated melting point, it is often advised to reduce the rate of heating. This makes temperature control more accurate and helps keep the material from overheating and breaking down.

As the unidentified substance was shown to melt at 156 degrees Celsius, a temperature of 10 to 20 degrees Celsius lower would be suggested in order to reduce the rate of heating.

136 degrees is 20 degrees below the unknown material's melting point. For some compounds, slowing down the pace of heating at this temperature would be optimal, but it might be too low for others.

B. 156 degrees: As this is the unknown substance's melting point, the rate of heating should not be slowed down at this temperature.

That would be 10 degrees below the melting point of the unknown at around 146 degrees. For the majority of substances, slowing down the pace of heating at this point would be reasonable and would enable more exact temperature control without running the danger of overheating or breakdown.

Hence, 146 degrees Celsius is the temperature at which the pace of heating should be reduced.

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Answer:

geology - a branch of earth science that focuses on the study of the rock

biology - study of life

molecular clock - a technique for estimating the age of species by comparing molecular differences between species

sediment - dirt, pieces of rock, and the remains of living things at the bottom of oceans, seas, and lakes

chemistry terms - a branch of physical science that focuses on composition, structure, properties and change of matter

Explanation:

Pretty sure that's all correct. Hope this helps

Used in generators and electric motors, electromagnetic induction explains how a changing magnetic field can produce an electric current and, conversely, how an electric current generates a magnetic field around it. The most accurate option is:

a.

Answer: \(0.05\ mm\)

Explanation:

Given

Cross-sectional area of wire \(A_1=4\ mm^2\)

Extension of wire \(\delta l=0.1\ mm\)

Extension in a wire is given by

\(\Rightarrow \delta l=\dfrac{FL}{AE}\)

where, \(E=\text{Youngs modulus}\)

\(\Rightarrow \delta_1=\dfrac{FL}{A_1E}\quad \ldots(i)\)

for same force, length and material

\(\Rightarrow \delta_2=\dfrac{FL}{A_2E}\quad \ldots(ii)\)

Divide (i) and (ii)

\(\Rightarrow \dfrac{0.1}{\delta_2}=\dfrac{A_2}{A_1}\\\\\Rightarrow \delta_2=0.1\times \dfrac{4}{8}\\\\\Rightarrow \delta_2=0.05\ mm\)

Answer:

Alpha decay forms new element with two fewer protons and two fewer neutrons, Beta decay forms new element with one more proton and one fewer neutron. Gamma decay forms NO new element, but now the element has less energy because energy is released as gamma rays.

Explanation:

ANSWER AND EXPLAINATION:
Gamma decay differs from alpha and beta decay in several ways:

1. Particle emitted: In gamma decay, no particles are emitted. Instead, a high-energy photon called a gamma ray is released. Alpha decay involves the emission of an alpha particle, which consists of two protons and two neutrons. Beta decay involves the emission of either a beta-minus particle (an electron) or a beta-plus particle (a positron).

2. Mass and charge: Gamma decay does not change the mass or atomic number of the nucleus since no particles are emitted. Alpha decay reduces the atomic number by 2 and the mass number by 4, as an alpha particle is emitted. Beta decay changes the atomic number, with beta-minus decay increasing it by 1 and beta-plus decay decreasing it by 1. The mass number remains the same in beta decay.

3. Penetrating power: Gamma rays have the highest penetrating power among the three types of decay. They can pass through most materials and require dense shielding (e.g., lead or concrete) to attenuate them. Alpha particles have low penetrating power and can be stopped by a sheet of paper or a few centimeters of air. Beta particles have intermediate penetrating power and can be stopped by a few millimeters of aluminum.

4. Energy release: Gamma decay releases energy in the form of high-energy photons. Alpha decay releases a significant amount of energy since an alpha particle carries substantial kinetic energy. Beta decay releases energy in the form of the kinetic energy of the emitted beta particle.

gamma decay is a process that involves the emission of high-energy photons, while alpha and beta decay involve the emission of particles with mass and charge. Gamma rays have higher penetrating power and do not cause changes in the mass or atomic number of the nucleus, distinguishing them from alpha and beta particles.

Answer:

3.7kg

Explanation:

The following data were obtained from the question:

Volume = 3.7L

Mass =?

Next, we shall convert 3.7L to m³.

This is illustrated below:

1000L = 1m³

Therefore, 3.7L = 3.7/1000 = 0.0037m³

Now, we can obtain the mass of the water as shown below:

Density of water = 1000kg/m³

Volume of water = 0.0037m³

Mass of water =..?

Density = Mass /volume

1000kg/m³ = Mass /0.0037m³

Cross multiply

Mass = 1000Kg/m³ × 0.0037m³

Mass = 3.7Kg

Therefore, the mass of the water is 3.7Kg.

Answer:

3.7

Explanation:

no clue i just found it on chegg and then it was correct

The wavelength for a TV channel broadcasting at 54.0 MHz is 5.56 meters.

The wavelength for a TV channel broadcasting at 54.0 MHz can be calculated using the formula:

Wavelength = Speed of Light / Frequency

The speed of light is approximately 3 x 10⁸ meters per second. Converting the frequency to Hertz gives us 54,000,000 Hz.

Wavelength = 3 x 10⁸/ 54,000,000
Wavelength = 5.56 meters

Therefore, the wavelength for a TV channel broadcasting at 54.0 MHz is 5.56 meters.



The wavelength of a TV channel broadcasting at 54.0 MHz can be determined using the formula: wavelength = speed of light / frequency. The speed of light is roughly 3 x 10⁸ meters per second, and converting the frequency to Hertz gives us 54,000,000 Hz. Plugging these values into the formula, we get a wavelength of 5.56 meters. This means that the electromagnetic waves carrying the TV signal have a wavelength of approximately 5.56 meters, which falls in the range of radio waves. Knowing the wavelength is important for understanding how the signal travels and how it may be affected by various obstacles or interference.



The wavelength for a TV channel broadcasting at 54.0 MHz is approximately 5.56 meters. This value can be calculated using the formula: wavelength = speed of light / frequency. Understanding the wavelength of a TV signal is important for predicting how the signal may be affected by environmental factors or interference.

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The different types of rocks found in the Earth's crust are created and altered through a sequence of events known as the rock cycle.

Geologists use the term "rock cycle" to describe how the three main types of rocks—sedimentary, metamorphic, and igneous—transition throughout the course of geologic time. When pushed outside of its equilibrium circumstances, each type of rock undergoes change.

The three major rock types—igneous, metamorphic, and sedimentary—are formed and degraded in accordance with various applications of heat and pressure throughout time, according to a web of processes known as the rock cycle. For instance, adding heat and pressure transforms sedimentary rock shale into slate.

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Explanation:

try to write complete question

but

200 Newton + 150 Newton -100 Newton

if you are asking this

The velocity of the object with the larger mass is 2.56 m/s.

The given parameters:

The speed of the larger mass is determined by applying the principle of conservation of linear momentum as follows;

\(m_1v_1 = m_2v_2\\\\v_2 = \frac{m_1v_1}{m_2} \\\\v_2 = \frac{16\times 4}{25} \\\\v_2 = 2.56 \ m/s\)

Thus, the velocity of the object with the larger mass is 2.56 m/s.

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(a) The support of K can be given by {0, 1, 2, 3, 4}.

(b) The set of events in which the aircraft is functioning can be given as follows: {K ≥ 1}, which means the aircraft is functioning if and only if at least one of its engines is functioning properly.

(c) Let's assume that the probability of each engine functioning properly is given by p. So, the probability of any particular engine malfunctioning or not functioning properly is (1 - p).

Since the aircraft is functioning if and only if at least one of its engines is functioning properly, the probability of system reliability can be calculated using the following formula:

P(K ≥ 1) = 1 - P(K = 0)

Since each engine functions independently of each other, the probability of each engine malfunctioning can be multiplied together. Thus, we have:

P(K = 0) = (1 - p)^4

Then,

P(K ≥ 1) = 1 - P(K = 0)

= 1 - (1 - p)^4

Therefore, the probability of the aircraft functioning, which represents system reliability, is given by 1 - (1 - p)^4.

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The gas tank made from A-36 steel with an inner diameter of 1.50 m and wall thickness of 25 mm has factors of safety against yielding of 2.67 (maximum shear stress theory) and 2.76 (maximum distortion energy theory) when pressurized to 5 MPa.

To determine the factor of safety against yielding of the gas tank, we need to use the maximum-shear-stress theory and the maximum-distortion-energy theory.

First, we can calculate the maximum shear stress using the maximum-shear-stress theory:

(a) Maximum-shear-stress theory:

The maximum shear stress, τmax, can be calculated using the following formula:

τmax = (1/2) × σmax

where

σmax is the maximum normal stress, which can be calculated using the formula:

σmax = P × D / (4 × t)

where

Substituting the given values, we get:

σmax = 5e6 Pa × 1.5 m / (4 × 0.025 m) = 1.875e8 Pa

Therefore, τmax = (1/2) × 1.875e8 Pa = 9.375e7 Pa

Next, we can calculate the factor of safety against yielding using the yield strength of A-36 steel, which is 250 MPa.

Therefore, the factor of safety against yielding using the maximum-shear-stress theory is 2.67.

(b) Maximum-distortion-energy theory:

The maximum distortion energy, U, can be calculated using the following formula:

\(U = (1/2) \times [(\sigma1 - \sigma2)^2 + (\sigma2 - \sigma3)^2 + (\sigma1 - \sigma3)^2]^{0.5}\)

where

Substituting the given values, we get:

σ1 = 5e6 Pa × 1.5 m / (2 × 0.025 m) = 1.5e8 Pa

Therefore, \(U = (1/2) \times [(1.5e8 - 0)^2 + (0 - 0)^2 + (1.5e8 - 0)^2]^0.5\)

U = 9.082e7 Pa

Next, we can calculate the factor of safety against yielding using the yield strength of A-36 steel, which is 250 MPa.

Therefore, the factor of safety against yielding using the maximum-distortion-energy theory is 2.76.

In conclusion, the factor of safety against yielding using the maximum-shear-stress theory is 2.67, and the factor of safety against yielding using the maximum-distortion-energy theory is 2.76.

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The type of single-case design that involves a withdrawal of treatment and reversal of procedures is called a Reversal Design, also known as an ABAB design.

This design consists of alternating between baseline (A) and intervention (B) phases.

During the baseline phase (A), the participant's behavior is observed without any intervention.

In the intervention phase (B), a specific treatment is introduced, and the participant's behavior is monitored for any changes.

The treatment is then withdrawn (returning to A), and finally, the intervention is reintroduced (B) to observe its effects again. The Reversal Design allows researchers to establish a cause-effect relationship between the intervention and the observed changes in behavior.

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Answer:

velocity, v = 15m / 3.0s

= 5 ms^-1

velocity = wavelength × frequency

5 ms^-1 = 1.5m × f

f = 5 ms^-1 / 1.5 m

f = 3.33 Hz

f = 1/T

T = 1/f

= 1/ 3.33 Hz

= 0.3 s

frequency, f = 3.33 Hz

period, T = 0.3 s

Answer:3 minutes

Explanation:60 miles an hour, 60 minutes in an hour, 1 mile per minute

The mass will have the greatest acceleration at the points where it is farthest from the equilibrium position, which are the amplitude points (maximum displacement) of the oscillation.

When a mass is attached to a spring and pulled away from its equilibrium position, it experiences a restoring force that pulls it back towards its equilibrium position. This restoring force is proportional to the displacement of the mass from its equilibrium position and acts in the opposite direction to the displacement.

As the mass moves closer to its equilibrium position, the restoring force decreases and becomes zero when the mass is at its equilibrium position.

According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Therefore, the greatest acceleration of the mass occurs at the points where the net force acting on it is the greatest.

Since the restoring force is greatest when the displacement of the mass from its equilibrium position is greatest, the mass will have the greatest acceleration at the points where it is closest to the equilibrium position. This is because, at these points, the restoring force is at its maximum, which in turn causes the greatest acceleration.

Therefore, the mass will have the greatest acceleration when it is passing through the equilibrium position. As it moves away from the equilibrium position, its acceleration decreases until it reaches its maximum displacement, where the acceleration becomes zero.

As the mass moves back towards the equilibrium position, its acceleration increases again until it reaches the equilibrium position, where the acceleration is once again at its maximum.

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Answer:

Taking the value of acceleration due to gravity as 9.8 m/s^2, the object fell for about 122.5 metres.

The amount of time it takes you to start responding after the environment has changed is known as the reaction time.

From the moment he sees the rabbit until his car comes to a complete halt, how long will the car travel?

A simple internet search revealed that it normally takes people 2.3 seconds to respond after spotting an object and applying the brakes. We know how long it will take to react, therefore we must convert miles per hour to metres per second.

Initial velocity is 21 m/s, and the ultimate speed is 8.0 m/s with a negative acceleration time of 0.20 seconds.

v2=u2+2as

Distance equals speed times time, or -6.3 x 0.20, or 1.26 m.

When given multiple stimuli, simple reaction time entails choosing one unique and accurate answer from a range of options.

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Given the total energy in the wire, current and time elapsed, the potential difference is 50 Volts.

The electric power is expressed as P = VI.

Where V is the potential difference, I is the electric current and P is the electric power.

Also, the consumption of energy per unit of time is called power. It is expressed as P = E / t

Given that;

First, we determine the power.

P = E / t

P = 500J / 5s

Power = 100W

Next, we determine the potential difference.

P = V × I

V = P / I

V = 100W / 2.00A

V = 50V

Given the total energy in the wire, current and time elapsed, the potential difference is 50 Volts.

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The Potential difference is 50 Volts.

The potential difference is a measure of the energy given to the charge carriers in a circuit

We know that  the electric power is expressed as P = VI.

V is the potential difference

I is the electric current
P is the electric power.

Also we know that power is expressed as P = E / t

Given

Current( I) = 2.00A ,time t = 5s

Total energy E = 500J

To find the power

P = E / t  = 500J / 5s = 100W

Now , To find the potential difference.

P = V × I (By rearranging it)

V = P / I

V = 100W / 2.00A = 50 V

Therefore , the total energy in the wire, current and time elapsed, the potential difference is 50 V.

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To calculate the Taguchi quality cost, we need to multiply the length of each piece by the Taguchi parameter T, and then sum up the costs.

Given:

Length of the first metal rod = 49.19 cm

Length of the second metal rod = 49.93 cm

a) Taguchi parameter T:

Since we don't have the specific value of T, we cannot calculate it.

b) Taguchi Quality Cost of the second metal rod:

Taguchi Quality Cost = Length of the second metal rod * Taguchi parameter T

c) Taguchi Quality Cost of the first metal rod:

Taguchi Quality Cost = Length of the first metal rod * Taguchi parameter T

d) Total Taguchi Quality Cost of the two units:

Total Taguchi Quality Cost = Taguchi Quality Cost of the first metal rod + Taguchi Quality Cost of the second metal rod

Since we don't have the Taguchi parameter T, we cannot calculate the specific values for parts (b), (c), and (d).

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A star is moving directly toward earth at a large fraction of the speed of light. The light we observe from this star compared to the light received from the same star if it were at rest relative to earth will be blueshifted.

The amount of light emitted by a star coming towards earth would have a shorter wavelength as compared to other sources of light. This refers to the doppler shift principle. According to the doppler shift principle, if an observer is moving in relation to a source, then the change in frequency in the light waves would be relative to that observer.

In this case, we will observe that the star approaching earth will shift its spectral lines toward the blue end of the light series.

Since blue light has a shorter wavelength, therefore, the large fraction of the speed of light coming out from a star would correspond to the blue end of the light spectrum hence called blueshift.

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According to the given statement 133.22N is the tension force in the rope.

Acceleration is the term used to describe how quickly a velocity or velocity varies over time. A point or object is going ahead directly when it accelerates or decelerates. But since vector is constantly shifting, velocity on a circle improves even when the speed remains constant. A displacement's velocity tells us how rapidly that displacement is altering. The measurement of a velocity shift called acceleration. because it is an integer that includes magnitude, direction, mass, and velocity. Due to the fact that it determines how quickly velocity changes, accelerate is a vector quantity.

When the weight, mg, is pointing downward and the tension, T, is pointing upward (positive), then

T - mg = ma  

or

T=m(a+g)

Then

T = 12.2(1.12+9.8) = 133.22N

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Answer:

Horizontal translation of six units

Explanation:

The volume of the cube is 200.732 cm³

Formula used:Volume of a cube= s³

Where s is the side of the cube.

Weight of aluminum can pile= 3.4 kg

Density of aluminum= 2.7 g/cm³

Density= mass/volume

volume= mass/density

To convert the mass into grams,mass= 3.4 × 1000 (1 kg= 1000 g) = 3400 g

volume= 3400 g ÷ 2.7 g/cm³ = 1259.259259 cm³

Volume of cube=s³

1259.259259 cm³= s³

Cube root on both sides,

∛1259.259259 cm³= ∛s³5.793810376 cm= s

Therefore, the volume of the cube is 200.732 cm³ (Rounded to 3 decimal places).

Hence, the required answer is 200.732.

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Answer:

blood picks up waste products such as carbon dioxide

returns to right atrium

moves to right ventricle and to lungs

blood travels from the lungs to the left atrium

carries oxygen and nutrients to the body cells

Explanation:

In the circulatory system, the blood carries the carbon dioxide to the right atrium of the heart through superior vena cava, then it move to right ventricle through tricuspid valve. The blood move to lungs following pulmonary artery and from lungs blood travels to the left atrium. From left atrium blood moves to the rest of the body through aorta and carries oxygen and nutrients to the whole body cells through.

Hence, the correct order is as follows:

blood picks up waste products such as carbon dioxide

returns to right atrium

moves to right ventricle and to lungs

blood travels from the lungs to the left atrium

carries oxygen and nutrients to the body cells

Answer:

2 they detect radio waves

Answer:

Statistics

Explanation:

Answer:

Acceleration

\( \frac{distace}{time} \)

When we cross multiply, distance will be equal to acceleration multiply by time

Distance = acceleration x time

Distance = 9.8 x 3

= 29.4 m/s

Answer:

51.2 m/

Explanation:

The headwind will slow down the airplane and make it move slower relative to the ground     98.7 - 47.5 = 51.2 m/ relative to ground