18. iaw fars, can a student pilot request a special vfr clearance in less than vfr conditions? explain your answer.

Answer:

n = 3.1x10¹²

Explanation:

To find the number of electrons we need to find first the charge (q):

\( I = \frac{q}{\Delta t} \rightarrow q = I*\Delta t \)    (1)

Where:

I: is the electric current = 0.59 A

t: is the time

The time t is equal to:

\(v = \frac{\Delta x}{\Delta t} \rightarrow \Delta t = \frac{\Delta x}{v}\)   (2)

Where:

x: is the displacement

v: is the average speed = 2.998x10⁸ m/s

The displacement is equal to the perimeter of the circumference:

\( \Delta x = 2\pi*r = \pi*d \)     (3)

Where d is the diameter = 80.0 m

By entering equations (2) and (3) into (1) we have:

\(q = I*\Delta t = I*\frac{\Delta x}{v} = \frac{I\pi d}{v} = \frac{0.59 A*\pi*80.0 m}{2.99 \cdot 10^{8} m/s} = 4.96 \cdot 10^{-7} C\)      

Now, the number of electrons (n) is given by:

\( n = \frac{q}{e} \)

Where e is the electron's charge = 1.6x10⁻¹⁹ C  

\( n = \frac{q}{e} = \frac{4.96 \cdot 10^{-7} C}{1.6 \cdot 10^{-19} C} = 3.1 \cdot 10^{12} \)

Therefore, the number of electrons in the beam is 3.1x10¹².

I hope it helps you!

The reason water has all of the unique properties that it does is due to the fact that it is a polar molecule.

Water molecules consist of two hydrogen atoms bonded to one oxygen atom, and the arrangement of these atoms gives rise to the molecule's polarity.

Polarity arises from the difference in electronegativity between the oxygen and hydrogen atoms. Oxygen is more electronegative than hydrogen, causing the oxygen atom to pull the shared electrons towards itself, creating a partial negative charge (δ-) on the oxygen atom and partial positive charges (δ+) on the hydrogen atoms.

The polarity of water molecules allows them to form hydrogen bonds. Hydrogen bonding occurs when the positively charged hydrogen atom of one water molecule is attracted to the negatively charged oxygen atom of another water molecule. This gives water unique properties such as high boiling and melting points, high specific heat capacity, and high heat of vaporization.

The hydrogen bonding in water also leads to its cohesive and adhesive properties. Cohesion refers to the attraction between water molecules, causing them to stick together. Adhesion refers to the attraction between water molecules and other substances. These properties allow water to have a high surface tension, capillary action, and the ability to dissolve a wide range of substances, making it an excellent solvent.

Additionally, water's polarity enables it to exhibit a unique property called "hydration." Water can surround and interact with ions and polar molecules, effectively separating and stabilizing them in solution.

Overall, the polar nature of water, resulting from its molecular structure and hydrogen bonding, is the key factor behind its exceptional properties, making it essential for life and many natural phenomena.

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The magnitude of the boat's resultant velocity will be 13 kilometers/hour.

The change of distance with respect to time is defined as speed. Speed is a scalar quantity. It is a time-based component. Its unit is kilometers/hour.

The magnitude of the boat's resultant velocity is found as;

\(\rm V_{resultant}=V_{north}-v_{west} \\\\ \rm V_{resultant}= 26 km/h - 12 km/h \\\\ V_{resultant}=13 \ km/h\)

Hence, the magnitude of the boat's resultant velocity will be 13 kilometers/hour.

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The distance between the transducer and the reflector is 15.4 mm.

The speed of ultrasound in soft tissue is approximately 1540 m/s.

Given that the reflected signal arrives 20 microseconds (us) after the firing pulse, we can calculate the distance using the equation:

\(Distance = (Speed\ of\ ultrasound * Time) / 2\)

Substituting the values, we have:

\(Distance = (1540\ m/s * 20 * 10\^ \ (-6) s) / 2\)

Simplifying the equation, we find:

\(Distance = 0.0154 m = 15.4 mm\)

Therefore, the distance between the transducer and the reflector is 15.4 mm.

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Answer:

Explanation:

The time it took Dr Rice to finish the race has already bee provided as 10.40 seconds.

However for Dr Lopez, his overall average speed will have to be calculated as

(10 + 9.5 + 11.1)/3 = 10.2 m/s

To determine the time it took Dr Lopez, the formula for speed will be used

speed = distance/time

10.2 = 100/time

time = 100/10.2

time = 9.80 seconds

Hence, it took Dr Lopez 9.80 seconds to complete the 100 meters race and hence was the winner. Thus, Dr Rice lost for completing the 100 m race in 10.40 seconds

Answer:

Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.

Explanation:

hope this helps a little bit sorry if i got it wrong

Answer:

Explanation:

According to Newton's second law

F = ma

m is the mass = 0.12kg

a is the acceleration = v-u/t

a = 5-0/0.6

a = 5/0.6

a = 8.333m/s²

Get the force

F = 0.12 * 8.333

F = 1.0N

Hence the average resultant force acting on the ball while it is being hit is 1.0N

The vertical pressure gradient is balanced by gravity, preventing permanent upward acceleration or motion.

The vertical pressure gradient does cause a temporary upward acceleration, but it doesn't result in permanent upward motion because it is counteracted by the force of gravity. The pressure gradient force acts from high pressure to low pressure, which in this case is from the surface to the higher altitude.

It creates an upward force that tries to push air molecules upward. However, gravity pulls the air molecules downward, creating a balancing force.

At a certain altitude, the upward pressure gradient force and the downward force of gravity reach equilibrium, resulting in a state of balance known as hydrostatic equilibrium. In this equilibrium, there is no net force driving the air molecules upwards, hence no permanent upward acceleration or motion.

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Answer: Carbon Dioxide.

Explanation: Oxygen and Carbon are both elements, so they can’t be compounds. Air is a mixture of gasses, not a compound.

Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

\(k = \frac{1}{2} m {v}^{2} \\ \)

m is the mass

v is the velocity

From the question we have

\(k = \frac{1}{2} \times 45 \times {22}^{2} \\ = \frac{1}{2} \times 45 \times 484 \\ = 45 \times 242 \\ = 10890\)

We have the final answer as

Hope this helps you

Answer:

Esses movimentos são movimentos naturais.

Explicação:

Se uma pedra cair do topo de um telhado ou edifício, a pedra se moverá em direção à terra, enquanto a fumaça produzida devido à queima da madeira vai para cima, então de acordo com Aristosteles esses tipos de movimento são chamados de movimento natural porque de acordo à definição de movimento natural que não requer nenhuma força, então esses dois movimentos também se movem na direção para baixo e para cima sem usar qualquer força, então podemos dizer que esses movimentos são naturais.

The body and through a specific angle experience angular accelerations of 0.87266 rad/sec2 and 12566.8 rad, respectively.

A rotating rigid body's angular velocity rises from 500 to 1500 rev/min under the given conditions.

Time= 120s

Finding - Angle and angular acceleration

The basic idea is that we must change rev/min to rad/sec.

ωf= ωi + αt

ωf- ωi = αt

Formula for angular acceleration: = [f- i]/t

Angle deviation formula: =it + t2/2

Calculations-

Rev/Min to rad/Sec conversion

I equals 500 rev/min

500 x 2 rad/rev x 1 minute and 60 seconds equals 52.3598 rad/sec.

f = 1500 rev/min

=1500 x 2 rad/rev x 1 minute and 60 seconds = 157.079 rad/sec

52.3598 rad/sec for I

ωf=157.079rad/sec

Now, to calculate angular acceleration, use the formula: [f- i]/t.

52.3598 rad/sec − 157.079 rad/sec = 120

1.872666 rad/sec

To calculate the angle deviated, enter -=i t + t2/2.

=52.3598 x 120 + [0.87266 x 120 x120]/2

ΔФ= 12566.8rad

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Heya!!

For calculate wavelength, lets applicate formula:

                                                      \(\boxed{\lambda = V/f}\)

                                                   Δ   Being   Δ

                                            f = Frequency = 262 Hz

                                            v = Velocity = 343 m/s

                                             \(\lambda\) = Wavelenght = ?

⇒ Let's replace according the formula:

\(\boxed{\lambda = 343\ m/s / 262\ Hz }\)

⇒ Resolving

\(\boxed{\lambda = 1,3 \ m}\)

Result:

The wavelength is 1,3 meters.

Good Luck!!

Answer:

D) 1.3 m

Explanation:

Have a amazing day

Answer:

We are required to analyze the conservation of kinetic energy in a perfectly inelastic collision.

kinetic energy:K=1/2mv²

momentum:p=mv

Explanation:

Using the equations for final velocity in terms of masses and initial velocity for a perfectly inelastic collision, work out the final kinetic energy. Calculate the initial kinetic energy and show that kinetic energy is not conserved. Use variables, no numbers

You need to follow law of conservation of energy

We know

You may use momentum formula mass×velocity

In both you need to form equations then solve for final velocity

Answer:

t = 12.25 s

Explanation:

First we calculate the time taken by the car during accelerating motion, we use 1st equation of motion:

Vf = Vi + at₁

where,

Vf = Final Velocity = 21 m/s

Vi = Initial Velocity = 0 m/s

a = acceleration = 3 m/s²

t₁ = time taken during acceleration = ?

Therefore,

21 m/s = 0 m/s + (3 m/s²)t₁

t₁ = (21 m/s)/(3 m/s²)

t₁ = 7 s

Now, we use the same equation to find out the time taken during deceleration motion, with following data:

Vf = Final Velocity = 0 m/s

Vi = Initial Velocity = 21 m/s

a = deceleration = -4 m/s²

t₂ = time taken during deceleration = ?

Therefore,

0 m/s = 21 m/s + (-4 m/s²)t₂

t₂ = (-21 m/s)/(-4 m/s²)

t₂ = 5.25 s

Therefore, the total time taken by the car to travel from first stop sign to second stop sign is:

t = t₁ + t₂

t = 7 s + 5.25 s

t = 12.25 s

Answer:

12.25s

Explanation:

Because the refractive indexes of the immersion oil and the glass microscope slide are the same; the oil prevents the refraction of the incoming light rays.

An invisible space is present between the slide and the lens that contains air.

When the light rays fall on the slide and lens they might get refracted due to air present between them.

If the rays get refracted then the diameter of the objective lens will expand further.

So in order to prevent the refraction of light, it is very important to lubricate the surface of the lens because glass and oil have same refractive index and without oil the light rays refract from their original path.

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Answer:

Estimator variables are those that cannot be controlled by the criminal justice system. They include simple factors like the lighting when the crime took place or the distance from which the witness saw the perpetrator.

Explanation:

The volume that 1L of gas will occupy at 37°C and a constant pressure is 0.8L. Details about volume can be found below.

The volume of a gas can be calculated using the Charles law equation as follows:

V1/T1 = V2/T2

Where;

1/310 = V2/248

248 = 310V2

V2 = 248 ÷ 310

V2 = 0.8L

Therefore, the volume that 1L of gas will occupy at 37°C and a constant pressure is 0.8L.

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Answer:

The value of the charge is 6 c. Option c.

Explanation:

Electric Field

The electric field is defined as the force per unit charge that would experience a small positive test charge if held at some point in space.

The force F on a charge q at any point in space is equal to the product of the charge and the electric field E at that point .

\(F=q\cdot E\)

Since we know the value of the electric field E=6\ N/c and the force F=36 N experienced by a certain charge q, we can solve the above equation for q:

\(\displaystyle q=\frac{F}{E}\)

\(\displaystyle q=\frac{36\ N}{6\ N/c}\)

q=6 c

The value of the charge is 6 c. Option c.

The force of the man when the piano sides down is 1575N.

The rate of change in velocity is defined as acceleration. This entails a change in speed and direction. When only a change in speed is involved in acceleration: Positive acceleration occurs when an object accelerates. When an object slows down, it experiences negative acceleration. Acceleration is defined as a change in velocity over time.

The rate of change of an object's velocity with respect to time is defined as acceleration. Vector quantities are accelerations. The orientation of an object's acceleration is determined by the orientation of its net force.

Any process in which the velocity changes is referred to as acceleration.

Since the man prevents the piano from accelerating, the force he exerts on it must be equal and opposite to the force of gravity.

Force of the man would be:

m*g*Sin[25 Degrees]:

= 380 * 9.818 * sin 25

= 1575 N

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Complete question

A 380 kg piano slides 2.9 m down a 25 degree incline and is kept from acceleration by a man who is pushing back on it parallel to the incline. determine the force of the man.

The phrase describes an activation of complex is (a) It is the potential energy required for a reaction to occur.

Activated complex is a process when reactant is interacted each other to form the product. Activated complex produce the highest energy in the chemical reaction because of its unstable atom activity and molecule reaction. To activated the activated complex, we need to a kinetic energy that is higher or equal to potential energy required for a reaction to occur. In short, activated complex is a process to change potential energy into kinetic energy in the reaction to create a product.

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Answer:

\(g=0.035\ m/s^2\)

Explanation:

Given that,

Mass of Earth, \(m=6\times 10^{24}\ kg\)

We need to find the gravitational acceleration of a satellite that is in orbit at a distance of \(10^8\ m\) from the center of the Earth.

Radius of earth is 6,371 km

The formula used to find the gravitational acceleration at a distance is given by :

\(g=\dfrac{Gm}{R^2}\)

R = r+d

\(g=\dfrac{6.67\times 10^{-11}\times 6\times 10^{24}}{(10^8+6371\times 10^3)^2}\\\\g=0.035\ m/s^2\)

So, the gravitational acceleration is \(0.035\ m/s^2\).

Answer:

Resistance affect the flow of current in a connecting wire because there is a direct relationship between the amount of resistance encountered by charge and the length of wire it must traverse. Second, the cross-sectional area of the wires will affect the amount of resistance. Wider wires have a greater cross-sectional area.

Answer:

a. 86.80 m

b. i. The mass of the bob

ii. The length of the pendulum

Explanation:

a. Determine the height of the smokestack.

Using T = 2π√(L/g) where T = period of pendulum = 18.7 s, L = length of pendulum = height of smokestack and g = acceleration due to gravity = 9.8 m/s².

So, making L subject of the formula, we have

T = 2π√(L/g)

T/2π = √(L/g)

squaring both sides, we have

(T/2π)² = L/g

L = (T/2π)²g

Substituting the values of the variables into the equation, we have

L = (T/2π)²g

L = (18.7 s/2π)²(9.8 m/s²)

L = (2.976 s)²(9.8 m/s²)

L = 8.857 s² × 9.8 m/s²

L = 86.796 m

L ≅ 86.80 m

b. What factors influence the period of a simple pendulum

The factors that influence the period of a simple pendulum are

i. The mass of the bob

ii. The length of the pendulum

The nuisance doctrine is a legal principle that says someone who moves into a place knowing there is a nuisance there cannot later complain about the nuisance and demand compensation for it.

When a homeowner lives close to an airport, it is widely accepted that homeowner should have been aware of the potential noise and other disruptions connected with living close to an airport if the airport was already operational when the homeowner moved in. Such circumstances may make it more difficult for a homeowner to successfully file a claim for compensation based on noise pollution or other airport-related problems.

A stronger case might be made for compensation based on increased noise pollution and other negative effects caused by the airport if a homeowner moved into the neighbourhood before the airport was established and had no knowledge of or reasonable expectation of its construction. This is due to the fact that instead of "coming to the nuisance," they encountered a change in their surroundings after already settling down.

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Answer:

The efficiency of the constuction is 9.0

Explanation: