1) If students spend more time using TikTok, then they will read fewer books. Independent Variable:
Dependent Variable:​

It is assumed that every adult has a home phone number is the potential source of bias

Systematic variations in how individuals are dropped from the study and how the results are adjusted for them (e.g., incomplete follow-up, differential attrition). bias brought on by an inadequate evaluation of the results. During the course of the study, selection bias can arise from missing data bias.

It is not possible to totally avoid confounding effects. Therefore, every scientist should be aware of all potential causes of bias and take all reasonable steps to minimize and lessen the departure from the truth. Authors should acknowledge any remaining variation in their writing by outlining any recognized constraints on their effort.

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The complete question is: An opinion poll calls 2000 randomly chosen residential telephone numbers then asked to speak with an adult member of the household the interviewer asks box office revenues are at an all-time high how many movies have you watched any theater in the past 12 months and all 1131 people responded the researchers use the responses to estimate the main number of movies adults have watched any movie theater in the past 12 months. What is the potential source of bias in this question

The distance of ball from the launch point is

0.92 m

Given:

U = 4.5 m/s = initial speed

V = 0.7 m/s = final speed

g = 10 m/s^2 = acceleration due to gravity

To Find:

distance of ball from the launch point

Solution: The law of motion equation

V^2 - U^2 = 2aS

(0.7)^2 - (4.5)^2 = 2*10*S

0.49 - 18.9 = 20S

- 18.41 / 20 = S

S = - 0.92 m

The distance of ball from the launch point is 0.92 m

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The dense atmosphere of Venus is light in color, causing most incoming solar radiation to be reflected.

The atmosphere of Venus is composed of carbon dioxide (CO2, 96,5 %) and nitrogen (N2, less than 3,5%) already represent more than 99,9% of the composition. Water Vapor is present in extremely low quantities, making Venus the driest planet of the solar system.

On Venus, only 10% of the incoming solar radiation reaches the surface; most of it is reflected back into space by the planet's dense cloud cover, making Venus appear to shine brightly in the night sky.

Despite the small amount of solar radiation reaching the surface, it is trapped effectively by gases in lower atmosphere, giving rise to the high temperatures.

Scientists think that the Venus was once more like the Earth, but at some point it started heating up uncontrollably.  Any water that may have once existed in oceans on the surface evaporated into atmosphere causing further runaway heating.

It’s like Earth gone wrong with a runaway greenhouse effect that some planetary scientists say should be a warning as to what may become of our home planet if human activities – such as burning fossil fuels and destroying forests, which intensifies natural greenhouse effect – continue.

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As the liver cells of animals, carbohydrates are kept in glycogen granules close to the inner membrane. On demand, these release energy.

In addition to human muscle and liver cells, other cells such as those in the brain, heart, smooth muscle, kidney, red and white blood cells, and even adipose tissue also store modest amounts of glycogen.

Glucose is stored in the form of glycogen. It is a sizable, multi-branched polymer of glucose that is converted back into glucose in response to glucagon and accumulates in response to insulin. The fact is that because fat is such an energy-dense molecule and contains so many calories per gram, ounce, or pound, it is far simpler to lose weight when your body burns carbohydrates instead of fat. While a gram of glycogen only contains four calories, a gram of fat has nine calories.

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A cook checks the temperature of soup being held for service and it is 130 Fahrenheit to cook reheats the suit to 165 this is example of taking a corrective action.

Realizing and characterizing issues, identifying their root causes, and taking the necessary steps to stop them from happening again are all components of corrective action. After that, the Corrective Action Process (CAP) aids in creating, implementing, and verifying the measures done.

Improvements to an organization's procedures are used to get rid of the reasons behind non-conformities or other undesired circumstances.

"Corrective action" refers to a course of action to get rid of the root of a discovered non-conformity or other unwanted circumstance. A nonconformity may have more than one source. In order to avoid repetition, corrective action is taken.

The soup is reheated to 165°F (74°C) when the cook determines that it is 130°F (54°C) when it is being kept for service. This serves as an illustration of corrective action.

A solution that aids in resolving a specific issue is referred to as a rectification action.

In this instance, the cook's corrective intervention aids in keeping the soup fresh.

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The answer of the question is

(a)Voltage or Volt

(b)Ampere (A)

(c)Ohm

A distance of 20 m is greater than a single displacement of 14.14 m that connects the same starting and ending point.

The displacement of the sequence is calculated as follows;

Δx = √[(x₂ - x₁)² + (y₂ - y₁)²]

Δx = √[(-5 - 5)² + (-5 - 5)²]

Δx = 14.14 m

Thus, we can conclude that a distance of 20 m is greater than a single displacement of 14.14 m that connects the same starting and ending point.

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It is the true statement, that if we double the force acting on a body, the acceleration will double.

In terms of both speed and direction, acceleration is the rate at which velocity varies over time. Acceleration refers to the change in speed or direction of an item or point travelling straight forward. Due to the constant change in direction, motion on a circle accelerates even while the speed is constant. Both impacts help to accelerate all other types of motion.

In order to be a vector quantity, acceleration must have both a magnitude and a direction. As a vector quantity, velocity is also. A time interval's velocity vector change divided by that interval's duration is the definition of acceleration.

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The Latent heat of fusion is also known as the Enthalpy of Fusion. It is a kind pf change in enthalpy.

The latent heat of fusion, is the change in enthalpy that takes place when energy, typically heat, is provided to a specific quantity of a substance to causes it to change from a solid state to a liquid state at a constant pressure.

For instance, 1 kilogram of ice melts at 0 °C at a variety of pressures, absorbing 333.55 kJ of energy without causing a change in temperature.

The heat of solidification, which occurs when a substance changes from a liquid to a solid, is equal and opposing.

This energy includes the contribution necessary to displace its surroundings against ambient pressure in order to accommodate any corresponding change in volume.

The melting point or the freezing point, depending on the situation, is the temperature at which the phase transition takes place. Conventionally, unless otherwise stated, the pressure is taken to be 1 atm (101.325 kPa).

The formula of latent heat of fusion is L= q/m

Here q is the heat provided and m is the mass of the object.

So, L = 24j/6kg

L= 4j/kg

So, the latent heat of fusion is 4 j/kg

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The predominant protonation state and charge of the His and Asp side chain will be predominantly protonated and positively charged if both its p[tex]K_{a}[/tex] values is more than 5.

We know that,

pH = p[tex]K_{a}[/tex] + ( log [ [tex]A^{-1}[/tex] ] / [ HA ] )

where,

[ [tex]A^{-1}[/tex] ] represents deprotonated form

[ HA ] represents protonated form

Consider pH = p[tex]K_{a}[/tex]

In this case,

[ [tex]A^{-1}[/tex] ] / [ HA ] = 1

This means that protonated and deprotonated forms are equal.

This also means that as pH decreases, the acid's state will be predominantly protonated and its charge will be positive.

The relationship between pH and p[tex]K_{a}[/tex] shown above is known as Henderson-Hasselbach equation

Therefore, the predominant protonation state and charge of the His and Asp side chain will be predominantly protonated and positively charged if both its p[tex]K_{a}[/tex] values is more than 5.

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The cost of excavating a space of 84 ft long, 42 ft wide, and 9 ft deep is $45864

Information about the problem:

To solve this problem, we have to state the equation using the information of the problem:

Calculating the volume of the total space:

space volume = space long * space wide * space deep

space volume = 84 ft * 42 ft * 9 ft

space volume = 31752 ft3

By converting the volume from ft3 to yd3, we have:

31752 ft3 * (0,037037 yd3 / 1 ft3) = 1176 yd3

Calculating the cost of excavating the volume space:

Total cost = space volume * cost by yard3

Total cost = 1176 yd3 * $39/yd3

Total cost = $45864

It is the space occupied by a body, it is calculated by multiplying its dimensions, for example: length, height and width.

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You can't get one over on me; spacecraft have traveled to every planet in our solar system.

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The density of mercury in units 2.33 x 10³ kg / m³.

At room temperature, mercury, a very heavy, dense silver-white metal, is a liquid. (To learn more about mercury, click here.) A small amount of mercury like this feels surprisingly heavy because mercury has a density of 13.5 g/mL, which is approximately 13.5 times denser than water (1.0 g/mL).

To convert gram divided centimeter³ to kg / m³

gram / centimeter³

= 10⁻³ kg / centimeter³

= 10⁻³  / (10⁻²)³ kg / m³

= 10⁻³ / 10⁻⁶ kg / m³

= 10⁻³⁺⁶ kg / m³

= 10³ kg / m³

To convert the amount from gm/cm3 to kg/m3, we must multiply it by 10^3

2.33 gram / cm³

= 2.33 x 10³ kg / m³ .

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I understand that the question you are looking for is:

You would like to know whether silicon will float in mercury and you know that can determine this based on their densities. Unfortunately, you have the density of mercury in units of kilogram-meter^3 and the density of silicon in other units: 2.33 gram-centimeter^3. You decide to convert the density of silicon into units of kilogram-meter^3 to perform the comparison.

By which combination of conversion factors will you multiply 2.33 gram-centimeter^3 to perform the unit conversion?

Was fired for Workplace cheating after it was determined he had been inflating his production reports each quarter.

The document that is filled out each day during the production of a movie or television show to recap what happened that day is known in the film industry as a "production report" (abbreviated "PR"). Each show often uses a unique template for a production report, which is frequently made before production even starts by one of the assistant directors. There is no standard format for a production report ("AD"). Apart from minor variations, most forms include the same data and are basically a collection of blank Excel tables that are printed double-sided on a legal-sized (8 x 14 inch) piece of paper. This form is used to keep track of a production's progress and costs as well as to calculate the cast and crew's respective salaries. 

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Carbon has been converted to carbon dioxide and escaped into the atmosphere.

Diamond is a mineral composed of only Carbon in which its atoms are arranged in a crystal structure.

Diamonds (pure crystalline carbon C) heated strongly in the presence of oxygen will react with the oxygen to form carbon dioxide.

C ( diamond ) + [tex]O_{2}[/tex] ( air ) → C[tex]O_{2}[/tex]  

Therefore, the carbon which forms the diamond, has been converted to carbon dioxide and escaped into the atmosphere

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If the spectrometer had been set to a different wavelength to measure absorbances (If the spectrometer had been set to a different wavelength to measure absorbances) then the calculated unknown concentration should same.

Absorbance is directly proportional to  the concentration of the substance.

higher concentration gives higher absorbance because the light absorbed is affected by the interacted no. of molecules.

Spectrometer - An instrument used to measure wavelength of spectra over a wide range.

types of spectrometer

If the spectrometer had been set to a different wavelength to measure absorbances (If the spectrometer had been set to a different wavelength to measure absorbances) then the calculated unknown concentration should same.

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The correct answer for chevron pay in cash dividends to common shareholders during the first nine months of 2013 is 5572144100 dollors .

The dividend paid by Chevron foe 9 months of 2013 is $ 5572 millions.

Calculation:

No. Of outstanding shares = 1,921,429,000

Dividend per share = $2.9

Dividend paid = No. of outstanding shares * dividend per share

= 1,921,429,000 * 2.9

= $5,572,144,100

A dividend is a payment made to shareholders in exchange for their investment in a company's equity, and it is usually derived from the company's net profits. When a cash dividend is paid, the funds are transferred to a liability account known as dividends payable.

When the company makes the payment on the dividend payment date, which is usually a few weeks after the ex-dividend date, this liability is removed. Cash dividends and tick dividends have no effect on a company's net income or profit.

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A father and his young daughter are ice skating. According to it, the daughter has greater speed.

According to Newton’s third law, when two bodies come into contact, they exert forces on one another that are equal in size and directed in the opposite direction. The law of action and reaction is another name for the third law.

This law applies to bodies in uniform or rapid motion and is crucial for addressing problems of static equilibrium, where all forces are in balance. The forces it discusses are actual phenomena, not just accounting tricks.

If there is a net force operating on a body, it moves faster in line with the second rule.

If there is no net force acting on the body, either because there are no forces at all or because all forces are precisely balanced by opposing forces, the body does not accelerate and is said to be in equilibrium.

On the other hand, it can be assumed that a body that appears to be moving slowly has no net force acting on it.

So going according to it, the daughter has greater speed.

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Answer:

23.63985719

Explanation:

pls dont ask it was painfull

Answer:

zero

Explanation:

Zero force is required to keep it moving at a constant speed

  due to inertia ====>  objects at rest tend to stay at rest and objects moving tend to remain that way unless acted upon by forces

A and B are orthogonal vectors, so projab=0 and projab = b

If the vectors a and b are present in, then b is projected onto an as

[tex]proj_{a} b[/tex] = [tex]\frac{a.b}{a^{2} }[/tex]a.

​Suppose a and b are orthogonal vectors. Then  and

[tex]proj_{a} b[/tex][tex]=\frac{a.b}{a^{2} }=0[/tex]

Suppose a and b are parallel vectors. Then a scaler c exists such that b=cx and

[tex]proj_{a} b=[/tex][tex]=\frac{a.b}{a^{2} }=c\frac{a.b}{a^{2} } a=ca=b[/tex]

[tex]proj_{a} b=0\\proj_{a} b=b[/tex]

The term "orthogonal unit vectors" refers to a collection of vectors that are mutually perpendicular to one another, that is, they intersect at an angle of 90° with a magnitude of one unit. Since Cos90 is zero, the dot product of an orthogonal vector is always zero.

Two orthogonal vectors have a zero dot product. The zero dot product of the two column matrices that represent them. It only matters in relation to orientation. In the case of orthogonal vectors, the dot product is zero.

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During the time that a planet is in its period of apparent retrograde motion, over many weeks or days, the planet moves west relative to the stars, rather than the usual east relative to the stars

All the planets orbit the Sun in the exact direction, and if you envision a place above the Earth's north pole, you can see them traveling anticlockwise. The normal motion is anticlockwise and is recognized as 'prograde.'

When a planet is in apparent retrograde motion, it appears to be the planet moving west relative to the stars, rather than the usual east relative to the stars, frequently zigzagging or looping as it goes. The planet appears to be moving backward to the viewer. The word "retrograde" means "to move backward."

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The maximum use voltage level for electrical insulating gloves with a beige label is 17000 v AC.

To prevent burns and electrical shocks, users should wear electrically insulated rubber gloves. To shield workers from electrical shock, these are constructed of dielectric materials. Electricians working on electrical lines don rubber gloves, sometimes known as lineman's gloves. The gloves are tested at voltages higher than those for which they are rated. Rubber insulating gloves are the first line of defense, offering protection against shock and electrocution when coming into touch with electrified electrical parts and equipment, in contrast to arc flash protective suits, which are intended to lessen or eliminate injuries after an incident occurs. Rubber is a reliable form of shock protection because it doesn't conduct electricity. Rubber is a natural insulator, thus it will prevent electric currents from passing through your skin, unlike many other materials that behave as conductors.

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BCC unit in a cell : It consists of 8 atoms on vertices and 1 atom at the centre.

Therefore, side length =  0.282 nm

1. No of atoms in the BCC cell = 1 / 8  *8 + 1 = 2 atoms

Atomic atoms = No of atoms * weight

= 2 * 48.9 g/mol = 97. 8 g / mol;

Mass of one mole = Atomic weight / No of mole

= 97.8 /6.022 * 10²³

= 16. 24 * 10⁻²³ g

Density = mass /  volume

7.24 = 16. 24 * 10⁻²³  /  a³

a = 2.82 * 10⁻⁸ cm ⇒ Side length

Relation between side length and the radius of atom is

a = 4R / √3

2.82 * 10⁻⁸ = 4R / √3

= 1.2212 * 10⁻⁸ cm

Radius = 0.122 nm

side length = 0. 282 nm

The atomic mass of an element is defined as the weighted average mass of that element’s is absolutely False

Atomic mass (Also called Atomic Weight, although this denomination is incorrect, since the mass is property of the body and the weight depends on the gravity) Mass of an atom corresponding to a certain chemical element). The uma (u) is usually used as a unit of measure. Where u.m.a are acronyms that mean "unit of atomic mass". This unit is also usually called Dalton (Da) in honor of the English chemist John Dalton.

It is equivalent to one twelfth of the mass of the nucleus of the most abundant isotope of carbon, carbon-12. It corresponds roughly to the mass of a proton (or a hydrogen atom). It is abbreviated as "uma", although it can also be found by its English acronym "amu" (Atomic Mass Unit). However, the recommended symbol is simply "u".

The atomic masses of the chemical elements are usually calculated with the weighted average of the masses of the different isotopes of each element taking into account the relative abundance of each of them, which explains the non-correspondence between the atomic mass in umas, of an element, and the number of nucleons that harbors the nucleus of its most common isotope.

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The driving force for heat transfer through physical contact between two objects is determined by: The temperature gradient between the objects.

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the angular frequency of this motion is 5.46rad /sec

The formula for the angular frequency is = 2π/T. Radians per second are used to express angular frequency. The frequency, f = 1/T, is the period's inverse. The motion's frequency, f = 1/T = ω/2π, determines how many complete oscillations occur in a given amount of time so in this case the It is measured in units of Hertz, (1 Hz = 1/s).

herex

=

(17.4cm)cos[(5.46s− 1)t]

is written in the general form

where we can identify: A=17.4cm and ω

=5.46rad /sec

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Light with a frequency of 5.80 * 1014 hz travels in a block of glass that has an index of refraction of 1.52.

(a) Wavelength of the light in the vaccum is 5.17 X 10⁻⁷m

(b) Wavelength of light in glass is 3.40 X 10⁻⁷m

Given;

Frequency (λ) : 5.80 X 10¹⁴ Hz

Refractive index (η) = 1.52

(a) Wavelength of light λο = C/f

where, c = speed of light

f = frequency

                                      λο = (3 X 10⁸ m/s)/5.8 X 10¹⁴ Hz

                                      λο = 5.17 X 10⁻⁷

Wavelength of the light in the vaccum is 5.17 X 10⁻⁷m

(b) Wavelength of light in glass λ = λο/η

where, η = Refractive index

               λ = λο/η = (5.17 X 10⁻⁷m) X 1.52 = 3.40 X 10⁻⁷m

Therefore, wavelength of light in glass is 3.40 X 10⁻⁷m

The distance between the two crests or troughs of the light wave is known as the wavelength of light. Using the Greek letter lambda (λ), it is identified. As a result, wavelength refers to the separation between one wave's crest or dip and the following wave.

Visible spectrum: The part of the electromagnetic wave that can be observed by human vision is known as the visible spectrum. The visible spectrum in the electromagnetic spectrum spans from the infrared to the ultraviolet regions. Between the infrared and ultraviolet wavelength ranges is where the visible light falls. From 400 nanometers (violet) to around 700 nanometers, the human eye can sense light (red). Other electromagnetic radiations are either outside the range of biological function or are too small or huge to be detected by the human eye.

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Answer:

249 km

Explanation:

and its speed slows to 81 km/h.   ???  <===== Isn't slower...

   for three hours it travels 55 km/h   for 1.5 hours it travels at 81 km/hr

Distance North   3 * 55 sin 30  + 81 * 1.5  km = 204 km

Distance West    3 * 55 cos 30 = 142.9 km

Use pythag theorem to find displacement

d^2 = 204^2 + 142.9 ^2       shows d = 249 km

A 44.5 n hammer falls from a 100 m radar tower being repaired by a mechanic 4450 J worth of work is done on the hammer as it falls.

Work= Force *Distance

= 44.5*100

= 4450 J.

Distance is a measurement of the distance between two objects or location. In physics, the term "distance" can refer to an actual length or, more commonly, to an estimate based on several other parameters. The sign |AB| may occasionally be used to denote a distance between two places.

To calculate the distance, use the formula d = st, or distance equal speed multiplied by time.

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