What are 3 characteristics of creative or "Literary" Nonfiction

Answer:

\(10\; {\rm m\cdot s^{-1}}\).

Explanation:

Under the assumption that air resistance on the ball is negligible, gravitational pull from the Earth would be the only force acting on the ball during the flight.

The resultant force on the ball would be equal to the gravitational pull, which is entirely in the vertical direction. Thus, the net force in the horizontal direction would be \(0\) while the ball is in the air.

By Newton's Laws of Motion, since horizontal acceleration is \(0\) during the flight, velocity of the ball in the horizontal direction would stay unchanged in a translational equilibrium.

It is given that the ball was launched at an angle of elevation of \(\theta = 60^{\circ}\) above the horizon. The initial velocity \(u\) of the ball can be decomposed into two components:

With \(u = 20\; {\rm m\cdot s^{-1}}\), the horizontal velocity of the ball at launch would be \((20\; {\rm m\cdot s^{-1}})\, \cos(60^{\circ}) = 10\; {\rm m\cdot s^{-1}}\).

Since the horizontal velocity of the ball stays unchanged during the flight, the horizontal velocity of the ball at the vertex of the trajectory would be equal to the value at launch: \(10\; {\rm m\cdot s^{-1}}\).

the work done by the crane to lift the steel girder is 19,200 J.

The crane lifts an 8-m long steel girder weighing 1600 N up 12 m off the ground, and it did 12,800 J of work.

This is because the work done by the crane is given by:

Work = Force x Distance x cos(theta)

where,

Force = 1600 N

Distance = 12 m

theta = 0 degrees (since the force is applied vertically upward)

cos(0) = 1

Therefore,

Work = 1600 N x 12 m x 1Work = 19,200 J

So, the work done by the crane to lift the steel girder is 19,200 J.

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a. when an object changes position relative to a reference point is motion.

In physics, motion is a relation of a body's position or orientation over time. Translation is characterized as movement along a line or a curve. Rotation is a motion that adjusts a body's orientation.

Motion is impeded or halted by the force of friction. When two components rub into one another, they create friction, which is a resistance to motion (the sled and the snow, for instance). Even air friction happens. An object can move or accelerate, slow down or descend, cease, or change direction as a result of force.

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To calculate the voltage across the capacitor is (1.44)R.

What is speed?

The speed at which electrons move past a particular location in an electrical circuit is known as the "current." In the most basic terms, current = flow. The international unit for measuring current is the ampere, pronounced "amp" (AM-pir).

What is voltage?

Voltage is the "pressure" under which electricity is pushed. Higher voltages result in more electricity flowing to an electronic device. The amount of voltage is measured in units known as volts (V).

I=1.4A

V=?

V=(1.44)R

R⇒ resistance

Therefore, the voltage across the capacitor is (1.44)R.

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The vast majority of the natural gas produced in the US comes from domestic sources.

According to the U.S. Energy Information Administration (EIA), in 2020, about 96% of the natural gas consumed in the United States was produced domestically.

The top natural gas-producing states in the U.S. are Texas, Pennsylvania, and Oklahoma. Other significant natural gas-producing states include Louisiana, Wyoming, Colorado, New Mexico, and Ohio. The natural gas produced in these states is used both domestically and exported to other countries.

The natural gas industry has expanded rapidly in recent years due to advances in drilling technology, such as hydraulic fracturing or "fracking," which has made it possible to extract natural gas from previously inaccessible shale formations. As a result, the U.S. has become a major producer and exporter of natural gas, helping to increase energy security and reduce dependence on foreign sources of energy.

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Answer:

See below

Explanation:

RNA is single-stranded. It does leave the nucleus, unlike DNA. It still consists of strands, however, the ribose in the backbone of the strand is different than in DNA.

The nitrogenous bases are different in RNA; instead of Thymine, Adenine now pairs with Cytosine.

The pitch of the sound increases as the frequency of the sound increases while the loudness remains the same.

The main observations that can be made between a frequency of 500 Hz and one that is above 700 Hz, keeping the amplitude fixed are as follows:As the frequency increases, the pitch becomes higher.

The pitch, loudness, and quality of the sound will change,The higher the frequency, the higher the pitch of the sound. For example, high pitched sounds such as sirens, birds chirping, and whistling sounds have a frequency that is above 700 Hz.On the other hand, sounds that have a frequency of less than 500 Hz are typically lower pitched sounds such as bass instruments, bass guitars, and the sound of a bass drum.

                                          These sounds are perceived to be lower in pitch as compared to sounds with a frequency above 700 Hz.Moreover, there will be no noticeable change in the amplitude of the sound wave since it is held constant. The amplitude of the sound wave is related to the loudness of the sound, and not the pitch of the sound.

Therefore, the pitch of the sound increases as the frequency of the sound increases while the loudness remains the same..

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Answer: B Hope I helped ^^

Explanation:

The evolution of energy matrices, the social and environmental consequences of energy sources, and the relationship between energy development and industrial development are critical aspects of understanding the interplay between energy and the modern world. Balancing the need for energy with sustainability and minimizing environmental impacts is a key challenge for societies today.

a) The evolution of the main energy matrices after the industrial revolution:

The industrial revolution marked a significant shift in the sources of energy used to power the growing industries and societies. Prior to the industrial revolution, human and animal labor, along with limited use of water and wind power, were the primary sources of energy. However, with the advent of steam engines and mechanization, there was a need for more abundant and efficient sources of energy.

Coal: Coal became the dominant energy source during the early stages of the industrial revolution. It provided the necessary fuel for steam engines and played a crucial role in powering factories, railways, and steamships.

Oil: The discovery and commercialization of oil in the late 19th century revolutionized the energy landscape. Oil became a major source of energy for transportation, as it fueled the internal combustion engines of automobiles, trucks, and airplanes.

Natural Gas: With the expansion of oil drilling, natural gas also emerged as an important energy source. It is used for heating, electricity generation, and as a feedstock for various industrial processes.

Nuclear Energy: The development of nuclear power in the mid-20th century introduced a new source of energy. Nuclear reactors harness the energy released from nuclear fission reactions to generate electricity.

Renewable Energy: In recent decades, there has been a growing emphasis on renewable energy sources such as solar, wind, hydroelectric, and geothermal power. These sources offer sustainable alternatives to fossil fuels, with lower environmental impact and the potential for long-term energy security.

b) The social and environmental consequences of these energy sources:

Each energy source has its own social and environmental consequences:

Fossil Fuels: The burning of fossil fuels, such as coal, oil, and natural gas, releases greenhouse gases and contributes to climate change. Extraction of fossil fuels can lead to habitat destruction, water pollution, and health hazards for workers and nearby communities.

Nuclear Energy: While nuclear energy does not produce greenhouse gas emissions during operation, it presents risks associated with accidents, radioactive waste disposal, and potential weaponization of nuclear materials. Public safety concerns and environmental risks have led to debates over the use of nuclear power.

Renewable Energy: Renewable energy sources offer benefits in terms of reduced greenhouse gas emissions and environmental sustainability. However, their deployment may require land use changes, and some technologies (e.g., large-scale hydroelectric dams) can cause ecological disruptions and displacement of communities.

c) The relationship between energy development and degree of industrial development:

Energy development and industrial development are closely intertwined. The availability of affordable and reliable energy sources is crucial for driving industrialization and economic growth. Access to abundant energy resources enables countries to power their industries, expand transportation networks, and improve living standards.

Countries that have invested in the development and exploitation of energy sources have typically experienced accelerated industrialization and technological advancement. The ability to secure and utilize energy resources efficiently has been a determining factor in a country's competitiveness and economic prosperity.

Conversely, countries that lack access to energy sources or fail to invest in their energy sectors may face challenges in industrial development. Limited energy availability can constrain production capacities, limit access to modern technologies, and hinder economic progress.

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A 0 20-kg hockey puck initially traveling 5.0 m/s is pushed on ice by a hockey stick with a constant force of 7.0 N over a distance of 8.0 m. Friction is negligible. The final velocity of the hockey puck can be determined by using the equation, where Vf is the final velocity, Vi is the initial velocity, a is the acceleration, and d is the distance.Vf² = Vi² + 2ad

The force exerted on the hockey puck is given as,F = 7.0 NThe distance travelled by the hockey puck is given as,d = 8.0 mThe initial velocity of the hockey puck is given as,Vi = 5.0 m/sThe mass of the hockey puck is given as,m = 0.20 kgWe can determine the acceleration experienced by the hockey puck by using the following formula,

F = maSolving for a, we geta = F / ma = F / ma = (7.0 N) / (0.20 kg)a = 35.0 m/s²Substituting the values in the formula for final velocity,Vf² = Vi² + 2adVf² = (5.0 m/s)² + 2 × (35.0 m/s²) × (8.0 m)Vf² = 25.0 m²/s² + 560.0 m²/s²Vf² = 585.0 m²/s²Taking the square root of both sides, we get,Vf = √(585.0 m²/s²)Vf = 24.2 m/sTherefore, the final velocity of the hockey puck is 24.2 m/s.

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The Productivity Index (PI) of the well is 2 psi/bbl per day. This indicates the efficiency of the well in delivering fluids from the reservoir to the wellbore.

The Productivity Index (PI) is a measure of the well's ability to deliver fluids from the reservoir to the wellbore. It is calculated by dividing the difference between the reservoir pressure and the flowing bottomhole pressure by the production rate. In this case, the reservoir pressure is given as 3,000 psi, and the flowing bottomhole pressure is measured at 2,990 psi. The production rate is 5 barrels per day.

For calculating the PI, use the formula:

PI = (Reservoir Pressure - Flowing Bottomhole Pressure) / Production Rate

Substituting the given values into the formula:

PI = (3,000 psi - 2,990 psi) / 5 bbls per day

Simplifying the equation:

PI = 10 psi / 5 bbls per day

PI = 2 psi/bbl per day

Therefore, the Productivity Index (PI) of the well is 2 psi/bbl per day. This indicates the efficiency of the well in delivering fluids from the reservoir to the wellbore.

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Answer:

the energy increases 4 times

Explanation:

A spring has an elastic potential energy that is given by the expression

          K_e = ½ K (x-x₀)²

where x is the distance from the equilibrium point and k is the return constant

if the spring is stretched at  x-x₀ = 2x₀, the energy value

        K_e = ½ k (2x₀)²

        K_e = ½ k 4 x₀²

        K_e = 4 (½ k x₀²)

        \(\frac{K_e}{ \frac{1}{2} k x_o^2}\) = 4

therefore the energy increases 4 times

The energy stored in the spring changes by a factor of 4

The formula for calculating the energy stored in the spring is expressed as:

\(E=\frac{1}{2}ke^2\)

If the spring is stretched to twice the length of its equilibrium position

\(E_2=\frac{1}{2}(2k)^2\\E_2=\frac{1}{2}4k^2\)

Take the ratio of the energy stored in the spring

\(\frac{E_2}{E} =\frac{1/2(4kx^2)}{1/2kx^2}\\ \frac{E_2}{E} =\frac{4}{1}\\E_2 = 4E\)

This shows that the energy stored in the spring changes by a factor of 4

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The armature speed is given in rpm, so we need to convert it to revolutions per second by dividing it by 60. The result is the terminal voltage of the generator, the terminal voltage of the given generator will be approximately 1.458 (no units).

To calculate the terminal voltage of the given 2 kW, 4 pole DC generator, we can use the formula:
Terminal Voltage = (Pole Flux × Armature Speed × Number of Conductors per Slot × Number of Parallel Paths)/(60 × Number of Poles)
Given:
\(Pole Flux = 0.05 Wb\)
\(Armature Speed = 1750 rpm\)
\(Number of Conductors per Slot = 4\)
\(Number of Parallel Paths = 1 (since it's a lap wound armature)\)
\(Number of Poles = 4\)

Plugging in the values into the formula:
\(Terminal Voltage = (0.05 × 1750 × 4 × 1)/(60 × 4)\)
Simplifying:
\(Terminal Voltage = 0.05 × 1750 × 4 × 1/240\)
\(Terminal Voltage = 350/240\)
\(Terminal Voltage = 1.458\)

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Answer:

u go to vanguard? in 6th grade

Answer:

is it correct ? sorry of it is incorrec

The power of a statistical test refers to its ability to detect statistically significant differences between groups or variables.

It is defined as 1-β, where β represents the probability of making a Type II error, or failing to detect a true difference. In other words, a high power value means that the test is more likely to correctly identify significant differences, while a low power value means that it is more likely to miss them. Power is influenced by a variety of factors, including sample size, effect size, and alpha level, among others. It is an important consideration when designing and interpreting statistical analyses.

The power of a statistical test is defined as the probability of rejecting the null hypothesis when it is false, or in other words, the probability of detecting a statistically significant difference when one actually exists. It is often denoted by the symbol "1-β", where β represents the probability of making a Type II error, which is the error of failing to reject the null hypothesis when it is false.

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Answer:

Molecular compounds have molecules

Electronic amplifiers employ active devices such as transistors and operational amplifiers in combination with R, L, and C elements.

These amplifiers are designed to increase the amplitude or power of an input signal, thereby enhancing its strength, clarity, and quality. Active devices such as transistors and op-amps are used to control the flow of current and voltage in a circuit, while resistors, inductors, and capacitors are used to shape and filter the signal.

The combination of these active and passive components allows electronic amplifiers to perform a wide range of functions, including signal amplification, filtering, oscillation, and modulation.

Amplifiers are used in a variety of electronic devices, including radios, televisions, audio systems, and medical equipment, and are essential for the transmission and processing of electronic signals.

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Answer:

Heat flows from hot to cold objects. When a hot and a cold body are in thermal contact, they exchange heat energy until they reach thermal equilibrium, with the hot body cooling down and the cold body warming up. This is a natural phenomenon we experience all the time.

Explanation:

Answer:

The probability that she is correct on only two questions is 0.246

Explanation:

The probability of getting an answer correct = 1/5

The probability of getting only two questions correctly

By binomial trials, we have;

P(X = K) = \(\dbinom{n}{k}\times p^{k}\times \left (1 - p \right )^{n - k}\)

P(X = 2) = \(\dbinom{6}{2}\times \left (\dfrac{1}{5} \right )^{2}\times \left (1 - \dfrac{1}{5} \right )^{6 - 2}\)

= 15×256/15625 = 768/3125 = 0.246

Therefore, the probability that she is correct on only two questions = 0.246.

The type of play that is NOT identified by Mildred Parten is cooperative play. Option 4.

Parten identified four types of play, which are solitary play, onlooker play, parallel play, and associative play. Solitary play involves a child playing alone, while onlooker play involves a child observing other children playing without actively participating. Parallel play is when children play next to each other but do not engage with each other. Associative play involves children playing together but without a common goal or organized activity. Cooperative play, on the other hand, involves children working together towards a common goal and is often seen in team sports or group projects. Answer option 4.

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Answer:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

The best estimate of the speed of the box after the displacement interval of 3.0 m is 4.9 m/s (Option D).

To determine the speed of the box, we need to apply the work-energy principle, which states that the work done on an object is equal to the change in its kinetic energy.

Work (W) done on the box can be calculated as the product of the force applied (F) and the displacement (d):

W = F * d

In this case, the force applied is 380 N and the displacement is 3.0 m:

W = 380 N * 3.0 m

W = 1140 J

The work done on the box is equal to the change in its kinetic energy (ΔKE). Since the box starts from rest, the initial kinetic energy (KE_initial) is zero:

ΔKE = KE_final - KE_initial

ΔKE = KE_final - 0

ΔKE = KE_final

Therefore, ΔKE = 1140 J.

Using the equation for kinetic energy:

KE = (1/2) * m * v^2

Where m is the mass of the box (67 kg) and v is the speed of the box.

We can rearrange the equation to solve for v:

v = √(2 * ΔKE / m)

v = √(2 * 1140 J / 67 kg)

v ≈ 4.9 m/s

The best estimate of the speed of the box after the displacement interval of 3.0 m is approximately 4.9 m/s (Option D).

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The golf ball spends approximately 1.46 seconds in the air before hitting the water. Just before striking the water, its speed is approximately 18.84 m/s.

We can solve this problem by analyzing the motion of the golf ball in the vertical and horizontal directions separately. In the vertical direction, the ball falls a distance of 12.3 m due to gravity. We can use the equation of motion for vertical motion, which is given by:

\(h = (1/2)gt^2\)

where h is the vertical distance, g is the acceleration due to gravity (approximately 9.8 \(m/s^2\)), and t is the time. Rearranging the equation, we can solve for t:

\(t = \sqrt(2h / g) = \sqrt(2 * 12.3 / 9.8)\) ≈ 1.46 s

Therefore, the ball spends approximately 1.46 seconds in the air.

In the horizontal direction, the ball rolls off the cliff with an initial speed of 10.2 m/s. Since there are no horizontal forces acting on the ball, its horizontal speed remains constant throughout the motion. Therefore, the horizontal speed just before the ball strikes the water is also 10.2 m/s.

Combining the vertical and horizontal components of motion, we can find the resultant velocity just before the ball hits the water using the Pythagorean theorem:

\(v = \sqrt(v_{horizontal}^2 + v_{vertical}^2) = \sqrt(10.2^2 + 0)\) ≈ 10.2 m/s

Therefore, the speed of the ball just before it strikes the water is approximately 18.84 m/s.

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Answer:

162

Explanation:

When the amplitude of the wave is 8 units, the corresponding energy of the wave is 128 units. Therefore, option C is correct.

The term amplitude is defined as the maximum distance moved by a point on a vibrating body or wave calculated from its equilibrium position.

We have given,

first amplitude, A = 1, corresponding energy = 2

second amplitude, A = 2, corresponding energy = 8

The energy of a string at  a given amplitude is calculated as follows;

E ∝ A²

Energy varies as the square of the change in amplitude.

If amplitude of one has energy of two

Amplitude of 2 (double of 1)

= ( 2 x 2 ) = 4 x 2

= 8  4 times the energy at amplitude of 1.

Then for 8 units of amplitude change

8 x 8 = 64 x 2

= 128  

Thus, When the amplitude of the wave is 8 units, the corresponding energy of the wave is 128 units, option C is correct.

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Your question is incomplete, most probably your question was

The data table shows how the amplitude of a mechanical wave varies with the energy it carries. Analyze the data to identify the mathematical relationship between amplitude and energy. Use your equation to find the energy if the amplitude is 8 units.

Amplitude

1

2

3

4

energy

2

8

18

32

A.66 units

B. 108 units

C. 128 units

D. 88 units ​

11.25 cm so the first option

The statement "A push system means providing the next station with exactly what is needed when it is needed" is (a) false

A push system is actually the opposite of providing exactly what is needed when it is needed. In a push system, goods are produced and pushed onto the next station or customer regardless of their immediate need or demand.

This can lead to excess inventory and waste if the products are not sold or used in a timely manner. A pull system, on the other hand, responds to customer demand and only produces what is needed when it is needed.

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The wavelength at which the brown dwarf will emit the most radiation at a wavelength of 1932 nm (nanometers).

Wien's law formula is:

λmax = b/T

where λmax is the wavelength at which the object emits the most radiation.

b is Wien's constant which is equal to 2.898 × 10^-3 m K and T is the temperature of the object in Kelvin.

To calculate the wavelength at which the brown dwarf will emit the most radiation,

surface temperature of 1500 K=

λmax = b/T

         = 2.898 × 10^-3 m K / 1500 K

         = 1.932 × 10^-6 m

         = 1932 nm

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