In a first order decomposition, the constant is 0.00711 sec-1. what percentage of the compound is left after 6.07 minutes?

The work done is 51.3 lb ft.

f = 19 lbs

moves a chair from x = 1.9 to x = 4.6 ft

W = [tex]\int\limits^b_aF {x} \, dx[/tex]

W = 51.3 lb ft

The work done is 51.3 lb ft.

Every time a force pushes something over a distance, work is done.

By multiplying the force by the distance moved in the force's direction, you may determine the energy transferred, or work done.

Energy transmitted equals work done, which is force times the distance travelled in the force's direction.

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Find the total x - component of the electric field at that point and get the resultant or the algebraic sum.

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The density of 8.0 cm³ sample of the same metal is 5.65g/cm³.

The density of a sample or a body is defined as, the density of a body is the amount of mass per unit volume . It is denoted by ρ. & its unit is kg/m³.

Density ρ = M/V

where, M is mass and V is volume of the body.

Solution,

Given here,

The density ρ₁ of volume V₁ & the density ρ₂ of volume V₂ of same metal therefore,

ρ₁ = 11.3 g/cm³

V₁ = 4.0 cm³

V₂  =8.0 cm³

ρ₂ =?

ρ₁ × v₁ = ρ₂ × v₂

ρ₂ = ρ₁ × v₁ /v₂

ρ₂ = (11.3 g/cm³× 4.0 cm³)/8.0 cm³

ρ₂ = 5.65  g/cm³

The density of sample of the same metal is  5.65  g/cm³

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Voltage polarity can be determined by the direction of current flow through the circuit

All voltages and currents possess both magnitude and polarity. One current flows through the entirety of a series circuit with its polarity flowing from the negative battery terminal to the positive battery terminal. Polarities are also seen in voltage dips across loads. Utilizing the electron current's direction as a starting point is the simplest method for determining these polarities. The voltage is then negative where the electron current enters the load (Figure 31). No matter how many or what kind of loads are present in the circuit, this remains true. The potential drop is opposite of the source across the load.  In opposition to the source voltage, the voltage dips lower it for the other loads.

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The volume of the balloon is 1.5 x [tex]10^{3}[/tex] [tex]cm^{3}[/tex]

Volume that the balloon has expanded to = V = 1.50L

We know that 1 L = 1000 [tex]cm^{3}[/tex]

⇒ V = 1.50 x 1000 [tex]cm^{3}[/tex]

= 1500 [tex]cm^{3}[/tex] or 1.5 x [tex]10^{3}[/tex] [tex]cm^{3}[/tex]

There is an acid-base reaction when vinegar and baking soda are together. Baking soda is the basic, and vinegar is the acid. A gas called carbon dioxide bubbles and foams as a result of this reaction between the two.

Since the gas has nowhere else to go, it expands the balloon, causing it to self-inflate.

Use more vinegar and baking soda to make more carbon dioxide gas, which will result in a larger balloon.

The number of reactants utilized impacts the number of products produced, which is a key principle in chemical processes. The reaction ought to be largely finished once the pressure starts to drop.

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The cart's speed is 0.5 m/s and the puck's speed is 0.45 m/s is 0.05 and .95m/s

Given:

A=The cart's speed is 0.5 m/s

B=The puck's speed is 0.45 m/s

Relative velocity formula =

[tex]V_{AB}=V_{A}-V_{B}[/tex]

[tex]V_{AB}=.5-.45=.05\\[/tex]

[tex]V_{BA}=V_{B}-V_{A}[/tex]

=.5+.45=0.95

The velocity of an object in respect to another object is defined as relative velocity. It is a measure of how rapidly two items move in relation to each other. In physics, relative velocity is significant because it explains how objects move and interact with one another. Many different sorts of interactions can have their relative velocity quantified. The velocity of an object in respect to another object is defined as relative velocity. It is a measure of how rapidly two items move in relation to each other. In physics, relative velocity is significant because it explains how objects move and interact with one another.

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If your engine is flooded with gasoline, you should push the brake, to the floor and hold for 5 seconds.

Gasoline or petrol is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines. Gasoline is already considered frozen if it turns into a thick sludge or wax. To totally avoid frozen gasoline inside the car, focus on preventing the fuel line from freezing during winter. Stale gasoline can be dangerous as it contains a combination of over 150 chemicals that can destroy both animal and human lives. Gasoline vapors are heavier than air, so they settle on the ground and travel like a liquid. Because of this, they often find their way into drains, basements, and sewer lines.

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The coupling constant between these protons when the spectrum is acquired at 500 MHz is 7Hz.

Coupling Constant:

The coupling constant of a molecule changes when the molecular structure of the component varies. Thus the coupling constant of a particle doesn't depend on the strength of the field and other factors.

Given that,

The coupling constant of bromoethane when the spectrum acquired is

J=7Hz.

The frequency acquired for the coupling constant is f=250MHz

The coupling constant of a molecule is independent of the resolution thus if the resolution of the molecule is either 250 MHz or 500 MHz or any other value the coupling constant remains the same. It only varies when the molecular structure of the element changes.

Therefore,

Thus the coupling constant of Bromoethane at 500 MHz is 7Hz.

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Required wavelength is λ = 0.0119 nm

The Compton effect in physics is defined as the phenomenon that arises when a specific beam is dispersed on a specific particle with an increase in wavelength.

Given;

The campton scattering is k = 30 kev

The speed of light is c = 2.9979 X 10 ⁸ m/s

The planck's constant is h = 6.626 X 10⁻³⁴

The expression from Campton shift is given by,

λ' - λ = λc (1 - Cos∅)

Here,  ∅ is the angle of scattering whose value is 180° for maximum energy transfer and λc is the campton wavelength whose value is

λc = h/mc

substitute the values in the above expression

λ' - λ = λc (1 - Cos 180°)

λ' - λ = 2 (h/mc)

Here, m is the mass of electron

On rearing the above expression

λ' =  λ + 2 (h/mc)

The expression from conservation of energy is given by,

E - E' = k

(hc/λ) - (hc/λ') = k

hc((λ' - λ)/λλ') = k

hc ((λ' - λ)/k) = λλ'

Here E and E' are the initial and final energy of electron

substitute the values in the above equation

hc (2(h/mc)/k)) = λ (λ + 2 (h/mc))

λ² + (2h/mc)λ - 2h²/mk = 0

λ² + [tex]\frac{2(6.626X10^{-34}Js)}{(9.11X10^{-31}kg) (2.997X10^{8}m/s ) }[/tex] λ - [tex]\frac{2(6.626X10^{-34}Js)}{(9.11X10^{-31}kg) (30X10^{3}evX\frac{1.6X10^{-19} }{1ev} J) }[/tex] = 0

λ² + (4.85X10⁻¹²)λ - (2X10⁻²²) = 0

On solving the above expression

λ = 1.19 X 10⁻¹¹ m

λ = (1.19 X 10⁻¹¹ m X 10⁹ nm/1m)

λ = 0.0119 m

Thus, required wavelength is λ = 0.0119 nm

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Answer:

1.8 seconds

Explanation:

Ignoring air friction

d = 1/2 at^2

15    = 1/2 (9.81) t^2    shows  t = 1.75 = 1.8 seconds

The acceleration of the particle will be 0.

We have position function of a particle is a linear function of time.

We have to determine its acceleration.

The rate of change of velocity with respect to time is called Acceleration.

According to the question -

Assume that the linear function of position of a particle is as follows -

x = mt + c

Where x is displacement of particle and t is time.

Now, Differentiating with respect time, we get velocity -

[tex]$\frac{dx}{dt} = \frac{d}{dt}\;(mt+c) = m[/tex]

Differentiating again with respect time, we get acceleration -

[tex]$\frac{d^{2} x}{dt^{2} } = \frac{d}{dt}\;m = 0[/tex]

Hence, the acceleration of the particle will be 0.

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The minimum diameter of a steel wire is 1.41mm

STRESS : The restoring force per unit area. unit of stress is N/m²

     It is denoted by σ

      σ = F/ A

Where σ = stress

F = force

A = area

force = ma

Area of a steel wire is πr²

2r = d

so area becomes

π(d/2)² =πd²/4

here , mass = 80kg

elastic limit = 5.0×10⁸kg

using these values

σ = mg/ πr²

5×10⁸ = 80×10³ × 9.8/ π*d²/4

π *d²/4 = 784 ×10³ /  5×10⁸

           = 156.8 ×10⁻⁵

   d² = 19.9×10⁻⁵

   d = 1.41 mm

The minimum diameter of a steel wire is 1.41mm

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A particular automobile with an initial speed of 65 km/h will come to 120 km/h in 8.49 s

The formula for Uniformly varied rectilinear motion (UVRM) and procedure we will use to solve this exercise is:

t = (vf - vi) /a

Where:

Information about the problem:

By converting the velocity from km/h to m/s, we get:

65 km/h * (1000 m / 1 km) * (1 h / 3600 s) = 18.056 m/s

120 km/h * (1000 m / 1 km) * (1 h / 3600 s) = 33.33 m/s

Applying the time formula, we have:

t = (vf - vi) /a

t = (33.33 m/s - 18.056 m/s) / 1.8 m/s2

t = 15.274 m/s /  1.8 m/s2

t =  8.49 s

It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2

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A. The frisbee will remain in the air for 5.88 s

B. The horizontal distance the frisbee will go is 29.4 m

The time the frisbee will spend in the air can be obtained as illustrated below:

169.2 = ½gt²

169.2 = ½ × 9.8 × t²

169.2 = 4.9 × t²

Divide both side by 4.9

t² = 169.2 / 4.9

Take the square root of both side

t = √(169.2 / 4.9)

Time = 5.88 s

The horizontal distance travelled by the frisbee can be obtained as follow:

s = ut

s = 5 × 5.88

Horizontal distance = 29.4 m

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The order of the positive and negative feedback loops are positive, positive, negative, positive, positive, negative.

A system component known as a feedback loop is one in which all or a portion of the output is used as input for subsequent actions. A minimum of four phases comprise each feedback loop. Input is produced in the initial phase. Input is recorded and stored in the subsequent stage. Input is examined in the third stage, and during the fourth, decisions are made using the knowledge from the examination.

Both negative and positive feedback loops are possible. Insofar as they stay within predetermined bounds, negative feedback loops are self-regulating and helpful for sustaining an ideal condition. One of the most well-known examples of a self-regulating negative feedback loop is an old-fashioned home thermostat that turns on or off a furnace using bang-bang control.

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According to Chebyshev's Theorem, the percentage of data within k standard deviations of the mean must be at least 1 - 1/k2 for any distribution, normal or otherwise.

In this instance, the mean is 1600 and the standard deviation is 120. The boundaries are set at 1240 and 1960. 360 data points are below and above the mean here. Considering that the standard deviation is 120 and that the mean is within 3 standard deviations of that value (360/120), k is equal to 3. As a result, 1 - 1/32 equals 1 - 1/9. This is 8/9, or almost 89%.

There is a range of 1360 to 1840. Within two standard deviations of the mean, this is 240 above and below the mean. Consequently, at least a fraction of the data fall inside this range.

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A soft drink is a homogeneous mixture.

All of the ingredients in a homogeneous mixture are dispersed equally, and in soft drinks, ingredients including sugar, carbon dioxide, and water combine to produce a single phase. A soft drink is therefore an uniform composition.

A mixture could be homogeneous or heterogeneous.

A mixture refers to a combination of two or more substances that are not chemically combined together. They may be solids, liquids or gases.

A mixture may be composed of substances in the same phase or different phases. If substances are combined in the same phase to form a mixture then the mixture is homogeneous. If substances in different phases combine to give a mixture then the mixture is heterogeneous.

Examples of homogeneous mixtures are salt and water solutions while examples of heterogeneous mixtures are sand and water as well as oil and water.

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The correct answer for the The last quarter phase of the moon is it crosses the meridian at sunrise .

A third quarter moon, or last quarter moon, rises around midnight and sets around noon. The Moon is nearly back to the point in its orbit where its dayside faces the Sun directly, and all we see from our vantage point is a thin curve.

The Last or Third Quarter is when we can see half of the Moon's illuminated portion and half of its shadow portion. This is why this phase is commonly referred to as Half Moon. We can only see half of the Moon because it is at a 90-degree angle to the Earth and Sun.

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Julian is having trouble coping with stress and setting goals. He is most likely struggling with emotional heath.

How we feel and think affects our emotional well-being. It is about how we feel about ourselves, how we handle difficult situations, and how we acknowledge both our own and other people's feelings.

This comprises resilience, self-acceptance, self-esteem, and the capacity to control intense emotions. Social. Friends are crucial because they make our life more enjoyable, companionable, and supportive.

Emotional stability is a state of calmness and emotional control. Resilience is the capacity to handle life's hardships. optimism: having a good outlook on life and the future. Self-esteem is the attitude you have toward oneself.

Depression, anxiety, stress, having a negative body image, grieving a loss, becoming a new parent, and other significant life changes can all have an impact on your mental and emotional well-being.

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To complete the sentences, we have

Equilibrium is the phenomenom in which no net force acts on an object.

Static equilibrium is equilibrium is which the body is at rest and has equaland balanced forces acting on it.

Dynamic equilibrium is equilibrium is which the body in motion and has equaland balanced forces acting on it.

So, to complete the sentences, we have

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v₀= 2.83478394238 is its initial velocity v₀ as it leaves the ground.

The rate at which an object's position changes when observed from a specific point of view and when measured against a specific unit of time is known as its velocity.

The equation v = s/t denotes the vector variable velocity (v), which quantifies movement (or change in location, s), over change in time (t).. Speed (or rate, r) is a scalar number that represents the amount of time (t) spent traveling in relation to the amount of distance (d), as shown by the equation r = d/t.

Maximum Height h= 0.410 m

acceleration g= 9.80 m/s² down

let initial speed is Vo.

At maximum height final speed of flea is zero.

From kinematic equation,

v² = v₀² + 2as

0² = v₀² - 2gh

v₀² = 2gh

v₀= [tex]\sqrt{2gh}[/tex]

v₀= [tex]\sqrt{2*9.8*0.41}[/tex]

v₀= 2.83478394238.

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To find the electron and hole concentrations and fermi levels in silicon at 300 k for boron, fermi level is 9.3 x [tex]10^4 cm^-3[/tex].

Ionization energy for boron in Si, 0.045 eV

Fermi level in silicon,

300 K at [tex]10^{15} cm^{-3}[/tex] (Boron atoms)

All boron impurities are ionized, 300K

Electron, hole concentrations and Fermi levels is found out,

The value of Na = [tex]10^{15} cm^{-3}[/tex]

np = [tex]\frac{ni^2}{nA}[/tex]

np = [tex]\frac{(9.65 x 10^9)^2}{10^15}[/tex]

np= 9.3 x [tex]10^4 cm^-3[/tex]

Fermi level is calculated,

Ef - Ev = kT ln(NV/ND)

value of kT = 0.0259 eV (300° K)

So, substitution the values

Ef - Ev = kT ln(NV/ND)

Ef - Ev = 0.0259ln (2.66 x [tex]10^{19} / 10^{15}[/tex] )

Ef - Ev = 0.0259ln (26600)

Ef - Ev = 0.0259 x 10.18

Ef - Ev = 0.263 eV

What is ionization energy?

Ionization energy, also known as ionization energy (IE) or ionization energy (British English spelling), is the minimal amount of energy needed to free the most loosely bonded electron from an isolated gaseous atom, positive ion, or molecule in physics and chemistry.

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Answer:there is the scetch in the picture

Explanation:

Answer:

TRUE

Explanation:

Organs are made of two or more tissue types to allow them to function.

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The correct answer he bar on the histogram with endpoints 60 to 120 has a height of 0.14 means 14% of the items were lost.

A histogram is a graph that uses rectangles to show the frequency of numerical data. The height of a rectangle (the vertical axis) represents the distribution frequency of a variable (the amount, or how frequently that variable appears).

The histogram is a popular graphing tool that is used to summarize discrete or continuous data that is measured on an interval scale. It is often used to illustrate the major features of the distribution of the data in a convenient form.

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The design factor or multiplier of the wire rope is 5.

Design factor means the ratio of the ultimate failure strength of a member or piece of material or equipment to the actual working stress or intended safe load.

The design factor or multiplier of the wire rope is calculated as follows;

D.F = maximum strength / load

D.F = 10,000 / 2000

D.F = 5

Thus, the design factor or multiplier of the wire rope is 5.

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Driving at a speed so fast that a driver cannot stop within the distance he/she can see with the use of headlights is called ___Overdriving headlights____

When a driver's sight is compromised by fog or darkness yet they continue to drive at a pace that prevents them from being able to stop in time to avoid objects in the road, it is sometimes referred to as "overdriving your headlights."

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