estimate the time en route from addison (area 2) to dallas executive (area 3). the wind is from 300° at 15 knots, the true airspeed is 120 knots, and the magnetic variation is 7° east.

Explanation:

If there are more reactants than products, it is a synthesis reaction. If oxygen is a part of the reactant, it is a combustion reaction. If one ion replaces another, it is a single replacement reaction. If there are two compounds in a reactant where cations switch, it is a double replacement reaction.

The new time it takes for a wave pulse to travel between the ends of the spring is 2.0 s.

The question has to do with period of a stretched spring.

The frequency of a stretched spring is given by f = 1/2L√(T/μ) where

We then find the period

The period of a stretched spring T = 1/f

T = 2L√(μ/T)

We know that the time it takes the wave pulse to travel is the period, T = 1/f

So, T = 2L√(μ/T)

Since T and μ are constant, we have that

T ∝ L

So, T₂/T₁ = L₂/L₁ where

Making T₂ subject of the formula, we have

T₂ = (L₂/L₁)T₁

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

T₂ = (L₂/L₁)T₁

T₂ = (20 m/10 m)1.0 s

T₂ = (2)1.0 s

T₂ = 2.0 s

So, the new time it takes for a wave pulse to travel between the ends of the spring is 2.0 s.

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Evaporation, or turning liquid to a gas, is first. Then it goes into the atmosphere and codensates, or turns back to a liquid, these water droplets form into clouds and come down as precipitation, rain, sleet, snow etc. Then the water cycle starts again

Answer: yes

Explanation: good luck

Answer:Yes, water indeed expands when it changes form from liquid to solid. And this is because water has a property called “hydrogen bonds”, and these bonds occur between each water molecule. But when water is in a liquid form these hydrogen bonds break more easily and occur less frequently. When the temperature drops the kinetic energy also drops, which in turn makes hydrogen bonds form more frequently. So the water molecules form a lattice, which is less dense than regular liquid water.

Explanation:

Answer:

Work done= Energy transferred

Explanation:

Work is the transfer of energy. In physics we say that work is done on an object when you transfer energy to that object. If you put energy into an object, then you do work on that object (mass).

Answer:

Schrodinger's cat explains that the state of an object is not known until  

an observer observes the state - therefor if the cat is in an enclosed box and the probability of some toxic substance escaping is 1/2, the cat is 1/2 dead and 1/2 alive until its actual state is observed by an external observer. An old saying "is the moon really there if no one is looking at it"

Answer:

The answer would be the last option (the one with the arrow pointing sideways)

Explanation:

The arrow lost it's acceleration and is starting to go downwards but it isn't a straight slope down

Answer:

Solar water heaters are devices that use energy from the sun to heat water. ... This metal surface, placed in contact with the water, will heat the water. Black-painted surfaces that receive the sun's heat become hotter than surfaces of any other color. The black metal plate is called a collector.

The resulting signal is s(t) = 2 rect(t/10) sin(2π  500t).Plotting the magnitude spectrum of this signal, we have. The frequency domain plot of the modulated signal is shown above. The bandwidth of the first null is the distance between the first two nulls, which are located at approximately 650 Hz and 1350 Hz. Hence the bandwidth of the first null is 1350 – 650 = 700 Hz.

The seismic magnitude scale is used to describe the overall strength or "size" of an earthquake. It is distinguished from the seismic intensity scale which categorizes the intensity or severity of ground shaking caused by earthquakes at a specific location. the difference between the Richter Scale and amplitude viz. The Ritcher scale uses amplitude, which is the farthest deviation from the vibrational equilibrium point. While the magnitude is based on the calculation of the frequency of ground vibrations. The results of magnitude calculations are often seen as far more accurate, especially for calculating the strength of an earthquake over a large area.

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Answer:

Many familiar physical quantities can be specified completely by giving a single number and the appropriate unit. For example, “a class period lasts 50 min” or “the gas tank in my car holds 65 L” or “the distance between two posts is 100 m.” A physical quantity that can be specified completely in this manner is called a scalar quantity. Scalar is a synonym of “number.” Time, mass, distance, length, volume, temperature, and energy are examples of scalar quantities.

The horizontal distance from the point directly below C to where the skier lands is 54.2 m.

Applying conservation of energy and conservation of momentum principles.

First, let's find the initial potential energy of the skier at point A:

PE1 = mgh1

= (80 kg)(9.81 m/s^2)(h1)

Next, let's find the final kinetic energy of the skier at point C:

KE2 = (1/2)mv2^2

= (1/2)(80 kg)(42 m/s)^2

Since there is no friction,

PE1 = KE2 + PE3

where PE3 is the potential energy of the skier at point C:

PE3 = mgh3 = (80 kg)(9.81 m/s^2)(10 m)

Substituting the values, we get:

(80 kg)(9.81 m/s^2)(h1) = (1/2)(80 kg)(42 m/s)^2 + (80 kg)(9.81 m/s^2)(10 m)

to determin h1,

h1 = (1/2)(42 m/s)^2/9.81 m/s^2 + 10 m

h1 = 144.8 m

Therefore, the height of the hill is 144.8 m.

Since there is no external force acting on the skier in the horizontal direction, the horizontal momentum is conserved:

mvi = mvx

vx = v2cos(25°)

Substituting the values, we get:

vi = (42 m/s)cos(25°)

vi = 37.9 m/s

Therefore, the initial horizontal velocity of the skier at point C is 37.9 m/s.

to determine time of flight:

h = (1/2)gt^2

t = √(2h/g)

t = √(2(10 m)/(9.81 m/s^2))

t = 1.43 s

applying the horizontal velocity and the time of flight to find the horizontal distance traveled:

d = vixt

d = (37.9 m/s)(1.43 s)

d = 54.2 m

The horizontal distance from the point directly below C to where the skier lands is 54.2 m.

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Answer:

To solve this problem, we can use the conservation of energy and the conservation of momentum. We can assume that there is no friction or air resistance, so the total mechanical energy of the skier is conserved throughout the motion.

Let's denote the initial height of the hill as h1, the height of point C above the ground as h2, the horizontal distance from point A to the point directly below C as x, and the angle of the skier's velocity vector with respect to the horizontal as θ.

First, we can calculate the speed of the skier at the bottom of the hill, point B, using conservation of energy:

mgh1 = (1/2)mvB^2 where m is the mass of the skier and vB is the speed of the skier at point B.

Solving for vB, we get:

vB = sqrt(2gh1)

Next, we can calculate the velocity of the skier at point C using conservation of energy:

mgh1 = (1/2)mvB^2 + (1/2)mvC^2

where vC is the speed of the skier at point C.

Solving for vC, we get:

vC = sqrt(2gh1 + vB^2)

We can also express the velocity vector at point C in terms of its x and y components:

vCx = vCcos(θ)

vCy = vCsin(θ)

Using conservation of momentum, we can find the horizontal distance x from the point directly below C to where the skier lands:

mvCx(h2/(-vCy)) = mvCx(t) + (1/2)gt^2

where t is the time taken for the skier to reach the ground and we have used the fact that the vertical displacement from point C to the ground is h2. We can solve for t by substituting vCy = vC*sin(θ) and solving the quadratic equation:

(1/2)gt^2 + vC*sin(θ)*t - h2 = 0

Solving for t, we get:

t = (-vCsin(θ) + sqrt(vC^2sin(θ)^2 + 2gh2))/g

Finally, we can substitute this expression for t into the equation for x to get:

x = vCx*t

Substituting the expressions for vCx, t, and vC, we get:

x = (vC^2sin(θ)cos(θ) - sqrt(vC^4sin(θ)^2cos(θ)^2 + 2gh2vC^2sin(θ)^2))/(g*sin(θ))

Plugging in the given values, we get:

x ≈ 184.5 meters

Therefore, the horizontal distance from the point directly below C to where the skier lands is approximately 184.5 meters.

The value of the inductor is approximately 5.91 mH. To find the value of the inductor, we can use the formula that relates the induced voltage across an inductor to the rate of change of current through it:

V = L * (di/dt),

where:

V is the voltage across the inductor (76 mV),

L is the inductance (unknown),

di/dt is the rate of change of current (ΔI/Δt).

Given that the current changed from 0 mA to 90 mA in a time of 7 ms, we can calculate the rate of change of current:

di/dt = (I_final - I_initial) / t

= (90 mA - 0 mA) / 7 ms

= 90 mA / 7 ms

≈ 12.86 A/s

Now we can substitute the values into the formula and solve for L:

76 mV = L * (12.86 A/s)

To solve for L, we rearrange the formula:

L = V / (di/dt)

= 76 mV / (12.86 A/s)

≈ 5.91 mH

Therefore, the value of the inductor is approximately 5.91 mH.

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Explanation:

Hope it helps~

Answer:

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field.

Explanation:

correct me if im wrong:)

Answer:

An archers bow that is drawn back

Answer:

A)a diver standing on a diving platform.

REQUESTS/REQUIERMENTS:

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Answer:

light

Explanation:

Light is part of a spectrum of electromagnetic energy that includes radio waves, microwaves, infrared radiation, visible light, ultraviolet "light", x rays, and gamma rays.

Answer:

d. water

Explanation:

The energy of a mechanical wave can travel only through matter. The matter through which the wave travels is called the medium (plural, media). The medium in the water wave pictured above is water, a liquid.

HOPE IT HELPS.....

Answer:

Water

Explanation:

i did the test

The minimum applied force that will keep the box at rest is 55 N.

The term frictional force refers to the force that opposes the motion of a body. We have the following information'

Given that;

μ = F/R

R = mgcosθ = 26.8 kg × 9.8 ms-2 × cos13 =255.9 N

F = μR

F =  0.215 × 255.9 N

F = 55 N

The minimum applied force that will keep the box at rest is 55 N.

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Answer:

The answer is C

Explanation:

Answer:

Answer in photo

Explanation:

Answer in photo

Answer:

C. Do not write anything next to it.

Explanation:

If an equation is already balanced there is no need to provide information of that.

Answer:

Explanation:

To find the horizontal component, the x component specifically, use the formula:

\(V_x=Fcos\theta\) and for the vertical component, the y component, use the formula:

\(V_y=Fsin\theta\)

where F is the magnitude of the force and theta is the angle in degrees.

For the x-component:

\(V_x=6cos250\) so

\(V_x=-2.1\) and depending upon whether this is a displacement vector or a velocity vector, the label would be meters/feet or m/s, respectively.

For the y-component:

\(V_y=6sin250\) so

\(V_y=-5.6\)

Answer:

False

Explanation:

To solve this question, we have to know which force is applied to which object.

In this case, the force is frictional, which means it's a force from the surface of the table. The property of the surface is acting upon the book, preventing to slide.

Answer:

lol While plastic and wood aren't great thermal conductors, they conduct heat faster than air does. Even if the toilet seat is at the same temperature as the air around it, it will feel colder to your but t because heat will move from your skin to the seat at a faster pace Air just doesn't conduct heat very quickly.

Explanation:

The star is located at a distance of 31.62 parsecs from us.

To determine the distance of the star, we need to use the inverse square law, which states that the apparent brightness of a star decreases as the square of its distance increases. Mathematically, it can be represented as:
Apparent brightness ∝ 1/Distance²
Given that the star's apparent brightness is 10⁻⁴ times its absolute brightness, we can write:
Apparent brightness = Absolute brightness/ (Distance)²
10⁻⁴ = Absolute brightness/ (Distance)²
Solving for distance, we get:
Distance = √(Absolute brightness/10⁻⁴)
However, we don't have the value of absolute brightness. But we can use the information that the star is observed to have an apparent magnitude of 10. Since apparent magnitude is a logarithmic scale, we know that a difference of 5 magnitudes corresponds to a difference of 100 times in brightness. Therefore, the star's absolute magnitude can be calculated as:
Absolute magnitude = Apparent magnitude - 5 log(distance/10)
Substituting the values, we get:
10 = Absolute magnitude - 5 log(distance/10)
Absolute magnitude = 10 + 5 log(10⁻⁴) = 14
Therefore, the distance can be calculated as:
Distance = 10^(1+((Apparent magnitude - Absolute magnitude)/5))
= 10^(1+((10 - 14)/5))
= 31.62 parsecs
Thus, the star is located at a distance of 31.62 parsecs from us.

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Answer:

tidal heating and/or their composition  

Explanation:

The evidence that there is dark matter beyond the disk of a spiral galaxy is the stellar mass which is distributed does not account for the rotation curve of galaxies.

Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe.

The most clear evidence of the existence of dark matter in spiral galaxies comes from their rotational velocities.

It has been shown from latest observations that the universe is not only expanding but that the expansion is accelerating and therefore, this could be the main evidence of the dark matter that the force it is exerting leads to universe expansion.

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