with certain exceptions, all aircraft within 30 miles of a class b primary airport from the surface upward to 10,000 feet msl must be equipped with

Answer:

The true statements are;

C and D

Explanation:

The tendency of an atom to gain or lose electrons in a chemical reaction are given by its electronegativity and electropositivity respectively

Electronegativity is a measure of an atom's capacity to attract electrons from neighboring particles, with atoms that are more likely to gain an electron, being described as having a higher electronegativity

Electronegativity increases across the period with increasing number of valence electrons, therefore, elements with five, six, or seven electrons, which are located on the far right of the periodic table are said to have higher electronegativity and therefore more likely to gain electrons in a chemical reaction

Electropositivity is the quantification or measure of an element to donate or give electrons and become positively charged ions in a chemical reaction

The fewer the number of valence electrons an element has, the more likely the element will undergo a reaction by donating the valence electrons to a more electronegative atom and become positively charged

Electropositivity decreases across the period and therefore, elements with one, two, or three valence electrons which are located in groups I, II, and III, are more likely to lose electrons in a chemical reaction

Answer:

C+D

Explanation:

Solar radiation refers to the emission of energy, particularly in the form of electromagnetic waves, resulting from the fusion of hydrogen in the sun's core. These radiations have wavelengths that range from less than one nanometer to more than one kilometre. They are absorbed, reflected, or transmitted by different mediums, including glass covers of solar collectors.

The glass covers of solar collectors are designed to allow the passage of solar radiation to reach the underlying absorbing surfaces and prevent their losses due to convection, conduction, or radiation. When solar radiation is incident on the glass cover of a solar collector at a rate of 700 w/m2, it is transmitted through the glass in part, reflected in part, and absorbed in part.

The amounts of transmission, reflection, and absorption depend on the characteristics of the glass, such as its thickness, refractive index, and transparency. For instance, a thin, clear, and transparent glass with a low refractive index would transmit most of the solar radiation and reflect and absorb a small fraction of it. The absorbed solar radiation raises the temperature of the absorbing surface, which could be a fluid, a metal, or a semiconductor.

The heat thus generated can be used for various applications, such as heating, cooling, and electricity generation.  Thus, the solar radiation incident on the glass cover of a solar collector is transmitted through the glass, reflected in part, and absorbed in part to generate heat.

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Answer:

Explanation:

Mass of sofa(m) = 105 kg

Force= 403 N

F = μ*N

Where:

F = friction force = 403 [N]

μ = static coefficient

N = Normal force [N]

The normal force of a body lying on a horizontal surface can be calculated by means of the product of mass by gravitational acceleration.

mass × acceleration due to gravity = 105 × 9.8  =  1029

403= μ *1029

substitute force with 403 N and resistance with 1029 × μ

                                    403 = 1029 × μ

                                         μ = 403/1029

                                            = 0.391

Answer = 0.391

The frequency of the other car is 669HZ

Let start off by writing out the parameters given in the question

frequency= 595 HZ

Speed of sound(v)= 343m/s

Speed of the car(vs)= 20m/s

Speed of the second car(vo) = 20m/s

The frequency of the other car can be calculated as follows

(v+vo/v-vs) f

= (343+20/343-20)595

= (363/323)595

= 1.1238(595)

= 669 HZ

Hence the frequency of the other car is 669 HZ

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Explanation:

Find an energy is E =mgh, so E = 45*10*19=8550j

Answer:

v=4m/s

wavelength=6m

f=v/∧

f=0.67Hz

now, v= 1.7 m/s

f=0.67Hz

∧=v/f

∧=1.7/0.67

∧=2.54m

Explanation:

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2.54m is the wavelength in the shallower region.

Wavelength exists the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in the area or along a wire. In wireless systems, this length exists usually specified in meters (m), centimeters (cm), or millimeters (mm).

Wavelength can be represented as the distance between two successive crests or troughs of a wave. It exists calculated in the direction of the wave.

v=4m/s

wavelength=6m

f=v/λ

f=0.67Hz

now, v= 1.7 m/s

f=0.67Hz

λ=v/f

λ=1.7/0.67

λ=2.54m.

Hence, 2.54m is the wavelength in the shallower region.

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Answer:

B carbon dioxide and water

Your answer should be

B

because of life-sustaining activities

Edwin Hubble used the Cepheid variable method to determine the distance to local galaxies.

This method involves measuring the pulsation periods of Cepheid variable stars, which have a direct correlation with their absolute luminosity. By comparing the apparent brightness of these stars in distant galaxies to the known absolute luminosity of Cepheids in our own Milky Way galaxy, Hubble was able to calculate the distance to these galaxies.

This method is still widely used today to determine the distances to objects in the universe.

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The given series, 1 + 7n Σ 57 n = 1, is divergent because the terms in the series continue to increase without bounds, the sum of the series also increases indefinitely.

To determine the convergence or divergence of the series, we can analyze its behaviour as n approaches infinity. The series can be written as Σ(1 + 7n*57) for n = 1 to infinity. By simplifying the expression, we have Σ(399n + 1) for n = 1 to infinity.

As n increases, the summand of the series grows linearly with a coefficient of 399. Since the coefficient is nonzero and positive, the series will diverge. This means that the sum of the series will not approach a finite value as n tends to infinity.

Therefore, the given series is divergent, and we cannot find its sum. It is important to note that a divergent series does not have a finite sum. Therefore, the sum of the given series is "DIVERGES."

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Time to impact the ground is 0.45 seconds. It will land 0.56 meters away from the table. The bullet appears to be traveling straight forward without changing directions, according to the horizontal speed.

By measuring the ball's diameter d and dividing it by the time t it takes for it to cross the photogate, one can also calculate the ball's starting horizontal velocity. Therefore, Vo = d/t.

Typically, horizontal velocity is defined as horizontal displacement divided by time, expressed in units like meters per second or miles per hour. Simply put, displacement is the distance an object has traveled since leaving a starting location.

y=Vyi t + 1/2 gt²

  1 = o+ 1/2 ×9.8×t²

  1=4.9 ×t²

t²= 1/4.9= 0.204081633

==> t = 0.45 sec

x= Vx× t

Here

Vx = 1.25 m/sec

t= 0.45 sec

x=  1.25 × 0.45 = 0.56 m

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Answer:

15

Explanation:

distance = speed × time.

Answer:

Fractional error = 0.17

Percent error = 17%

F = 112 ± 19 N

Explanation:

Plug in the values to find the force:

F = (3.5 kg) (20 m/s)² / (12.5 m) = 112 N

Find the fractional error:

ΔF/F = Δm/m + 2Δv/v + Δr/r

ΔF/F = 0.1/3.5 + 2(1/20) + 0.5/12.5

ΔF/F = 0.17

Multiply by 100% to find the percent error:

ΔF/F × 100% = 17%

Solve for the absolute error:

ΔF = 0.17 × 112 N = 19 N

Therefore, the force is:

F = 112 ± 19 N

1. A JFET can be used as a voltage-controlled resistor in the saturation region of its V-I characteristics where the JFET acts as a variable resistor for the applied voltage at the gate. The reason why the V-I characteristics are linear in that region is that the JFET channel is wide open to the current and the voltage applied across it,

thereby making the drain-source voltage proportional to the gate-source voltage. This effect causes the JFET channel to act as a voltage-controlled resistor. When the gate-source voltage is zero, the channel is open, and the JFET acts as a resistance, making it very low resistance for conduction. When a voltage is applied to the gate, it reduces the width of the channel and hence reduces the current flow through it, thereby increasing its resistance.

2. We have been given the following circuit diagram:The drain current, Id = 4mA and the gate voltage, \(Vg = -2V.Id = (Vp - Vgs)^2/2RdGiven, Vp = -10V; Rd = 1kΩSo,\) we can calculate the value of Vgs using the above formula as follows:4mA = (-10V - Vgs)^2/2(1kΩ)8mA x 1kΩ = (-10V - Vgs)^2-8V = -10V - VgsVgs = -10V + 8VVgs = -2VTherefore, the drain current, Id = 4mA and the gate voltage, Vg = -2V.

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Answer:

blahhhhhh ummm

Explanation:

mark as brainlist pleaseeeee

The characteristics of high-mass and low-mass stars are as follows:

High-mass stars (>8 Msun) have a higher fusion rate during their main sequence life, late in life fuse carbon into heavier elements, and end their life as a supernova.

Low-mass stars (<2 Msun) have longer lifetimes, their final corpse is a white dwarf, the Sun is an example, and they end their life as a planetary nebula.

High-mass stars have greater mass, leading to a higher fusion rate and shorter lifetimes due to their rapid consumption of nuclear fuel. They undergo advanced nuclear reactions, fusing heavier elements and eventually exploding as supernovae.

On the other hand, low-mass stars, like the Sun, have longer lifetimes due to slower fusion rates. They are unable to fuse elements heavier than carbon, and their final stage is a white dwarf after shedding outer layers as a planetary nebula.

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Answer:

Elements in a family have the same

Ans C. number of valence electrons

The correct answer is C.

In this case, Total Fixed Costs (TFC) remain positive as they are the expenses that do not change with the level of output, such as rent, salaries, and depreciation. Total Variable Costs (TVC) are zero since there is no production, and variable costs depend on the level of output. Total Costs (TC) remain positive as they are the sum of TFC and TVC, and since TFC is positive, TC will also be positive.

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Answer:

The weight and the mass of an object are related because the weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. w=mg

Answer:

A

Explanation:

change in direction ,velocity stays the same

ANSWER:

2.98 cm

STEP-BY-STEP EXPLANATION:

Given:

Length wire (L) = 6 m

Current (i) = 1.513 A

magnetic field (β) = 4.085 mT = 4.085 x 10^-3 T

Magnetic field at the center of circular coil is given for the following formula:

The total length of wire in the coil is given by:

We replacing:

Therefore, the diameter in centimeters is equal to 2.98 cm

Aldehydes and ketones react with nucleophiles at the carbonyl carbon. In an IR spectrum, the carbonyl absorption of cyclic ketones shifts to higher wavenumbers as the size of the ring decreases and the ring strain increases.

Aldehydes and ketones possess a carbonyl group (C=O) which is highly reactive and susceptible to nucleophilic attack. This reactivity is due to the presence of a polarized carbonyl bond, with the carbon atom being electron-deficient and therefore prone to nucleophilic substitution or addition reactions.

Nucleophiles, such as primary amines, Grignard reagents, or water, can react with aldehydes and ketones at the carbonyl carbon, leading to the formation of various products.

Infrared (IR) spectroscopy is a valuable technique used to analyze the functional groups present in a compound.

The carbonyl group in aldehydes and ketones displays a characteristic absorption band in the IR spectrum, typically appearing between 1680 and 1750 cm-1.

In the case of cyclic ketones, the position of this absorption band shifts to higher wavenumbers (i.e., towards the right on the spectrum) as the size of the ring decreases and the ring strain increases.

This phenomenon is attributed to the increased ring strain in smaller cyclic ketones, which affects the bond length and bond strength of the carbonyl group, resulting in a higher wavenumber for the absorption.

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Answer:

b

Explanation:

The Coriolis effect is a condition which causes a hurricane to rotate in a particular direction. Thus, the correct option is B.

Hurricanes are the enormous storms which come with a rotating wind speed of about 74 miles per hour. The rotating wind that swirls across the warm water of the tropics and also comes with a terrifying force.

The Coriolis force is an inertial or the fictitious force, which acts on the objects which are in motion within a frame of reference that rotates them with respect to an inertial frame. In a reference frame, with the clockwise rotation, the force acts to the left of the motion of the object. Whereas, in one with anticlockwise or counterclockwise rotation, the force acts to the right of the object. The deflection of an object due to this Coriolis force is called as the Coriolis effect.

Therefore, the correct option is B.

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Answer:

D. 2.5 kg•m/s

Explanation:

Given the following data;

Mass = 1kg

Velocity = 2.5m/s

To find momentum;

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

Momentum = mass * velocity

Substituting into the equation, we have;

Momentum = 1 * 2.5

Momentum = 2.5kgm/s

The time available on Machine II must lie between 1 minute and 3 minutes. The shadow price for Resource 2 (associated with constraint 2) is $3 per minute.

(a) To determine the range of available time on Machine II, we need to consider the constraints provided. The time available on Machine II must be between the time required for Type A souvenirs and the time required for Type B souvenirs.

Time required for Type A souvenir on Machine II: 1 minute

Time required for Type B souvenir on Machine II: 3 minutes

Therefore, the time available on Machine II must lie between 1 minute and 3 minutes.

The meaningful solution for the available time on Machine II is 1 min ≤ Machine II ≤ 3 min.

(b) To maximize the profit, we need to determine the optimal production quantities for Type A and Type B souvenirs given a change in the available time on Machine II.

Let's assume the change in available time on Machine II is represented by k.

To maximize the profit, we need to find the production quantities that maximize the total profit. Let's denote the production quantity for Type A souvenirs as x and the production quantity for Type B souvenirs as y.

The objective function for the profit can be expressed as:

Profit = 0.80x + 1.60y

Subject to the following constraints:

2x + y ≤ 120 (Machine I constraint)

x + 3y ≤ (300 + k) (Machine II constraint)

Using linear programming techniques, the optimal solution will depend on the value of k.

The statement "Ace Novelty's profit is maximized by producing Type A souvenirs 540 5 and 2(223+ *). 3 Type B souvenirs, where -225 1x ** $ 150 X X" seems to be incomplete and unclear. The specific production quantities and profit cannot be determined without knowing the value of k.

(c) To find the shadow price for Resource 2 (associated with constraint 2), we can perform sensitivity analysis.

The shadow price represents the change in the objective function's value per unit increase in the availability of Resource 2 (Machine II in this case). We can determine it by evaluating the sensitivity of the objective function to changes in the constraint.

Since the constraint is x + 3y ≤ (300 + k), the shadow price associated with Resource 2 is the coefficient of the Machine II term, which is 3.

Therefore, the shadow price for Resource 2 (associated with constraint 2) is $3 per minute.

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Answer:D

Explanation: temperature is the measure of hotness and coldness of a body.