15. Placards required on an aircraft are specified in the

A. Aircraft logbooks.
B. FAR Part under which it was type certificated.
C. Aircraft Type Certificate Data Sheet.
D. AC43.13-1B.

Answer:

A resultant is the sum of two (or more) vectors.

2. To add vectors, place the vectors such that the tail of the second vector is placed

at the head of the first vector. Draw a resultant vector from the tail of the first

vector to the head of the second vector. Using the Pythagorean theorem,

calculate the magnitude of the resultant vector. Use geometry or a protractor to

determine the angle of direction of the resultant vector.

Explanation:

Resolving power refers to the ability of a lens to distinguish between two closely spaced objects. It is determined by the wavelength of light and the numerical aperture of the lens.

Magnifying power, on the other hand, refers to the ability of a lens to enlarge the size of an object. It is determined by the focal length of the lens.
The term "parfocal" refers to a type of lens system where multiple lenses have the same focal point when the focus is adjusted. This means that when switching between different lenses, the focus remains the same, making it easier for the user to switch between lenses without losing focus.
Differentiating between the resolving power and magnifying power of a lens involves understanding their respective functions. Resolving power refers to the ability of a lens to distinguish between two closely spaced objects, or in other words, the clarity with which the lens can produce an image. Magnifying power, on the other hand, refers to the degree to which a lens can enlarge the image of an object.

The term "parfocal" is used to describe a set of lenses that, when interchanged on a microscope or other optical instrument, maintain their focus on the same object. This means that when you switch from one parfocal lens to another, only minimal adjustments to the focus are needed, allowing for a seamless transition between lenses with different magnifying powers.

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Resolving Power: It is the ability of a lens to separate or distinguish between closely spaced objects, reflecting the detail that can be seen with the lens.

Magnifying Power: It denotes how much larger an object appears through a lens compared to its actual size. High magnification doesn't necessarily mean better image quality.

Parfocal: This term refers to lenses that remain in focus even when the magnification or focal length changes. It enables swift adjustments in magnification without needing constant refocusing.

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Answer: 8.75 km/hr

Explanation:

Concept to know

Average speed: total distance/total time

-------------------------------------------------------

 total distance/total time

=(12.2+19.3)/(1.4+2.2) ⇔ add the numbers of two time running together

=31.5/3.6 ⇔ simplify

=8.75 km/hr

Hope this helps!! :)

Please let me know if you have any question

Answer:

The velocity when the ball hits the ground is obtained using v2. 2 = v1. 2 + 2 g Dy with v1=0 and Dy=h. Thus solving for v2 yields 17.1 m/s v2 = 2 g h =.

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Answer:

I e jofh ndoj eohe nc n very nic e

Given,

The mass of the car, m=1881 kg

The speed of the car, v=6.9 m/s

The momentum of an object is given by the product of the mass of the object and its velocity.

Thus the momentum of the car is given by,

On substituting the known values,

Thus the momentum of the car is 12.98×10³ kg·m/s

Answer:

#2

Explanation:

When the Earth is at point C, Equinox happens.

In Equinox, the Sun is directly above the equitor making day and night equal in both hemispheres.

The miracle year for Albert Einstein  was the year 1905 within which he published so many renowned papers.

The miracle year for Albert Einstein  was the year 1905 within which he published so many renowned papers in a short time and became very popular.

His mindset in that year was one that challenged the orthodox explanations and sought to think outside the box.

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If the male skull is found to have no visible suture lines, the approximate age of the skull when the person died is more likely to be 25 or 40 years old.

Suture lines are the areas where the cranial bones have fused together. In infants and young children, these suture lines are visible and allow for growth of the skull. As the person grows, these sutures slowly fuse together. Therefore, if a skull has no visible suture lines, it could suggest that the person was an adult at the time of death.

However, it is not possible to determine the exact age of the skull based solely on the absence of suture lines. Further analysis and examination, such as dental records, DNA testing, and other forensic methods, may be needed to identify the person and determine their age at the time of death.

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Answer:

122.5 m

Bonus:

If it drop for 6 seconds = 176.4 which is not a lot but when you first look at it, it looks a lot

Answer:

option A

Explanation:

the diameter is twice the length of the radius

hope it helps

Answer:

Explanation:

The formula for the magnitude of a vector is

\(B_{mag}=\sqrt{(-1.33)^2+(2.81)^2}\) and then round to the hundredths place:

3.11 m. Since we are in Q2, we can also find the direction of this vector:

\(tan^{-1}(\frac{2.81}{-1.33})=-64.7\) but since we are in Q2, we add 180 degrees to the result, getting the angle to be 115.3

Answer:115.33

Explanation:

After six half-lives, 1/64th (or 0.015625) of the original sample of radioactive atoms remains.

A fraction of 1/64 of the radioactive atoms remains after six half-lives. This is because the rate of decay of a radioactive material is exponential, meaning that each half-life will reduce the amount of radioactive atoms by half. After 6 half-lives, the amount of radioactive atoms remaining is 1/2 multiplied by itself 6 times, which equals 1/64.

The fraction of radioactive atoms is the fraction of atoms in a sample that are unstable and decaying. This fraction can be determined by measuring the rate of decay of the sample over time. The fraction is usually expressed as a percentage, and it is related to the half-life of the sample, which is the time it takes for half of the atoms in the sample to decay.

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Using the classical theory of metals, the estimated mean free path of electrons in copper is approximately 4.7 millimeters. This value is obtained by dividing the resistivity by the product of electron density and the square of the elementary charge.

To estimate the mean free path (l) of electrons in copper using the classical theory of metals, we can use the following formula:

l = ρ / (n * e²)

Where:

ρ is the resistivity of copper,

n is the electron density in copper, and

e is the elementary charge.

Plugging in these values into the formula, we get:

l = (1.7 × 10⁻⁸ Ω·m) / (8.5 × 10²⁸ m⁻³ * (1.6 × 10⁻¹⁹) C)²)

Calculating this expression gives us:

l ≈ 0.0047 meters or 4.7 millimeters (approximately)

Therefore, in the classical theory of metals, the estimated mean free path of electrons in copper is approximately 4.7 millimeters.

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Providing adequate lighting is crucial to ensuring a safe and productive work environment. The appropriate level of lighting in each area of operation can be achieved by using a combination of natural and artificial lighting sources.

The type and intensity of lighting required will depend on the task being performed and the area being lit. In general, bright, white light sources are preferred as they reduce eye strain and improve visibility. It is important to avoid glare and shadows that can impair visibility and cause accidents.

To ensure adequate lighting, lighting fixtures should be properly maintained and positioned to provide even illumination across the area. The use of dimmer switches and adjustable lighting can also provide flexibility in lighting levels, allowing for optimal lighting conditions for different tasks and activities. Additionally, using energy-efficient lighting sources, such as LED bulbs, can help reduce energy costs and promote sustainability. Overall, providing adequate lighting is essential for ensuring a safe and productive work environment.

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Answer:

Energy stored in an object due to its position is Potential Energy. Energy that a moving object has due to its motion is Kinetic Energy.

Explanation:

Welcome.

The gravitational attraction between two particles was equal to the sum of their individual masses times two. The gravitational influence between them will increase by a factor of three one of the objects triples in mass.

The attractive gravitational attraction that exists between two particles can be calculated using Newton's Law on Universal Gravitation. The gravitational attraction between these two particles will decrease as they move apart opposite directions since it inversely depend on particle distance.

Since the gravitational force is inversely proportional to the mass of the two interacting objects, heavier items will be drawn by stronger gravitational forces. Therefore, when two things' respective masses increase, so does their gravitational pull to one another.

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Answer:

I Believe the answer is

\(D. \: \: atmosphere\)

Explanation:

I hope how this helps!

Answer:

we can see object due to reflection of light.

Answer:

Sorry for the bad drawing, as you have not specified whether is should be open switch or close I have drawn both

I hope it helps.

According to the Newton's second law,

where F is the force on the object, m is the mass of the obect and a is the acceleration of the object.

Substituting the known values,

Thus, the mass of the object is,

Hence, the mass of the object is 6 kg.

The correct order from most recent to oldest is as follows:Cretaceous Jurassic Permian Devonian Precambrian

The Cretaceous period occurred approximately 145 to 66 million years ago, during the Mesozoic Era. It was the last and most recent period of the Mesozoic Era.

The Jurassic period was the middle period of the Mesozoic Era and occurred approximately 201 to 145 million years ago.The Permian period occurred approximately 298 to 252 million years ago and was the last period of the Paleozoic Era.The Devonian period occurred approximately 419 to 359 million years ago and was the fourth period of the Paleozoic Era.

The Precambrian period is the oldest and longest period in Earth's history, spanning from the formation of the Earth about 4.6 billion years ago to the beginning of the Cambrian period about 541 million years ago.

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Answer:water

Explanation:

Water may be a nutrient that makes up 60% of our body weight. it's important in many functions, it's part of every cell in every tissue in the body.

Water carries other nutrients to all or any parts of the body, it carries waste out of the body and it helps to manage body temperature. When you run or play sports your body heats up pretty quickly.

Your body starts to sweat as a way to get rid of the heat. When the sweat evaporates on your skin your body and blood get cool. it's very important to replace the fluid that is lost by sweating so as not to become dehydrated.

If you get dehydrated the body cannot cool itself anymore and your performance will drop. Without enough water, whether you're exercising or sitting all day, you're at risk for dehydration which can be fatal

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Answer:For a bell-shaped data set, approximately 68% of the data will be in the interval μ - σ to μ + σ, where μ is the mean of the data and σ is the standard deviation. This is known as the "68-95-99.7 rule" or the empirical rule, which applies to any normal distribution or approximately normal distribution. Specifically, approximately 68% of the data falls within one standard deviation of the mean (μ ± σ), approximately 95% falls within two standard deviations (μ ± 2σ), and approximately 99.7% falls within three standard deviations (μ ± 3σ).

Explanation:

For a bell-shaped or normally distributed data set, about 68% of the data will fall within the range of mean minus standard deviation (μ - σ) to mean plus standard deviation (μ + σ). The mean is the average of the data set and the standard deviation measures how spread out the data points are from the mean.

In statistics, if a data set follows a bell shape or normal distribution, approximately 68% of the data points will lie within the interval μ -σ to μ +σ. Here, μ denotes the mean (or average) of the data set, and σ denotes the standard deviation, which measures the dispersion of the data points from the mean. This principle is often referred to as the 68-95-99.7 rule or the empirical rule. This rule states that nearly all (about 99.7%) of the data will fall within three standard deviations from the mean.

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Answer:

A

Explanation:

When you dropping the swing, it increases the kinetic energy. In the middle, that is when it is at it's fullest potential. As it makes its way up, it pushes again the gravitational force, and soon, the swing will stop at the top for a VERY SHORT AND SMALL period of time. That is when it is at it's very weakest point, making the answer, indeed, A.

Answer:

Average speed = 13.5 m/s

Explanation:

Since the car is running at a speed of 27 m/s  and it stops after 3 seconds by applying the brake. Therefore, the initial speed of the 27 m/s and final speed is 0.

Use below formula to find the average speed :

Average speed = (Initial speed + final speed ) / 2  

Average speed = (27 + 0 ) / 2

Average speed = 13.5 m/s

Answer:

Some states have greater access to forestry programs than others.

Explanation:

Answer:

What do you want to know?

Explanation: