The Ottawa radio station JUMP 106.9 broadcasts at a frequency of 106.9 MHz - find the
wavelength. Radio waves are electromagnetic waves that travel at the
speed of light 3.0x10 m/s

The voltage applied across 1.94 cm² wire is22.1 V

We are given that

A₁ = 0.7 cm² = 1.08*10⁻⁴ m²

A₂= 2.5 cm² = 1.94*10⁻⁴ m²

A₃= 2.2 cm² = 3.08*10⁻⁴ m²

A₄= 3 cm² = 5.06*10⁻⁴ m²

Using  1cm²=10⁻⁴ m²

We know that using resistance formula we can calculate voltage

R = ρL/A

In series

R=R₁+R₂+R₃+₄

R=ρL/{A₁+ρL/{A₂}+ρL/{A₃}+ρL/{A₄}

Substitute the values

R = ρL/(2.62*10⁴)

V = 120v

I = V/R

I = 120 / {ρL(2.62*10⁴)}

Now the voltage across can be determined.

Voltage across the 1.94 square cm wire=IR=I*(ρL/A₂)

Voltage across the 1.94 square cm wire=ρL/ 1.94*10⁻⁴=22.1 V

Voltage across the 1.94 square cm wire=22.1 V

Therefore, The voltage applied across 1.94 cm² wire is22.1 V

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C contains 6 π electrons, and all 6 π electrons are delocalized in the ring. C is aromatic because it meets the criteria for aromaticity, which are that it is cyclic, planar, fully conjugated, and has a certain number of π electrons (4n+2, where n is a non-negative integer).

In order to determine the number of π electrons in C, we need to count the number of electrons involved in the π bond system. C has a benzene ring, which consists of 6 carbon atoms in a cyclic arrangement, with alternating single and double bonds. Each double bond contains 2 π electrons, so the total number of π electrons in the ring is 6 x 2 = 12. However, because the double bonds are delocalized around the ring, each carbon atom only contributes one π electron to the ring. Therefore, C contains 6 π electrons.

All 6 π electrons in C are delocalized in the ring, meaning that they are not localized to any one specific bond, but instead are free to move around the entire ring. This makes the ring particularly stable and resistant to reactions that would break the aromaticity.

C is aromatic because it meets the criteria for aromaticity. The ring is cyclic, planar, and fully conjugated, meaning that all of the atoms in the ring are sp2 hybridized and have overlapping p orbitals that allow for delocalization of electrons. Additionally, the number of π electrons in the ring is 4n+2, where n is 1 (in this case), making the ring aromatic. The aromaticity of C makes it particularly stable and has important implications for its reactivity and properties.

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Answer:

a 30kg

Explanation:

a 30kg

By bending my knees when jumping from the counter, I decrease the force on my body because I increase the time it takes for me to stop falling- True.

By bending your knees when jumping from the counter, you are increasing the time over which your momentum is brought to a stop. When you land on the ground with straight legs, the force of the impact is absorbed by your bones and joints in a shorter amount of time, leading to a greater force exerted on your body. This can potentially result in injury. However, by bending your knees upon landing, the force of the impact is spread over a longer period of time, reducing the maximum force experienced by your body and decreasing the risk of injury. This is known as the principle of impulse and momentum, which states that the impulse (force x time) experienced by an object is equal to the change in momentum of the object.

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Answer:       Calculate the electrostatic force using the formula: F = K[q1 x q2]/D^2 where K is coulombs constant, which is equal to 9 x 10^9 Nm^2/C^2. The unit for K is newtons square meters per square coulombs.

Explanation:

Answer:

How much is the mass of man?

Unintentional injuries caused by accidents are the number one killer of children and teenagers.

What causes the majority of adolescent deaths?

A little over half of all adolescent fatalities are caused by accidents. Over one-third of all fatal accidents fall under the category of motor vehicle fatalities, which is the top cause of death for teens. Non-Hispanic black male teens have the highest death rate.

The top causes of mortality for children under 5 years old continue to be congenital anomalies, pre-term birth complications, birth asphyxia, and other infectious diseases like pneumonia, diarrhea, and malaria. According to a recent study, homicide is the top cause of death for children in the United States, and the total rate has grown by 4.3% annually on average.

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The term you are looking for is "chemical battery". Chemical batteries work by converting chemical energy into electrical energy through a series of chemical reactions. These reactions take place within the battery's cells, which are composed of two electrodes and an electrolyte.

When the battery is connected to a circuit, the chemical reactions produce an electrical current that can be used to power devices. Chemical batteries are widely used in many applications, including consumer electronics, electric vehicles, and renewable energy systems. They are a crucial component of our modern technological society, and ongoing research is focused on developing more efficient and sustainable battery technologies to meet growing energy demands.

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Answer:

tech B

Explanation:

im assuming its ASE or CDX i got my ase certification

you should also always replace that fuse its there to stop a harmful amount of voltage to said thing like a starter or a a fan

RS is a composition of rotation and reflection in the Euclidean plane E². The precise description of RS depends on the specific properties of the rotation R and reflection S.

In general, if R and S have the same axis or line of symmetry, the composition RS results in a translation. If R and S have intersecting lines of symmetry, RS yields a glide reflection. If R and S have perpendicular lines of symmetry, RS produces a rotation.

It is important to consider special cases, such as parallel lines of symmetry, coinciding axes, or perpendicular lines of reflection, as they may lead to different outcomes. The classification of isometries in E² involves understanding how rotations and reflections combine to create different transformations in the plane.

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Answer:

please find attached file

Explanation:

The magnitude of the vector is 7.27m .

The magnitude of a vector is the numerical value of the vector. It is represented by the length of the vector.

When a vector is resolved in two components then it is given by formula,

\(A = \sqrt{Ax^{2}+Ay^{2} }\)

Here,

\(A_{x} = 6.15\\A_{y} = 3.88\)

A = \(\sqrt{6.15^{2}+3.88^{2}\)

A = 7.27m

Hence magnitude of the vector is 7.27m .

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An external force exceeding the maximum static friction between the object and the surface is the likely reason for the object to start moving. This force could be from various sources.

The most likely reason the object begins to move is that a force is acting on it, overcoming the static friction between the object and the surface.

Static friction is the force that keeps the object at rest, but once the force acting on the object exceeds the maximum static friction, the object starts to move.

The force could come from various sources, such as an external push or pull, the force of gravity if the surface is inclined, or the force of air resistance if the object is moving through the air.

The coefficient of static friction between the object and the surface is also an important factor in determining the maximum static friction that can be exerted before the object starts to move.

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Answer:

a

Explanation:

Answer:

program explanation

Explanation:

program explanation

The set of activities having a long-term aim should be a program.

A program refers to a set of instructions that a computer follows in order to perform a specific task. At the time When you program a computer, you provide it a set of instructions to make it able to perform a particular task.

So here the program should be considered.

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Answer: image to much to type.

Explanation:

Answer:

c. The particle is moving in a positive direction, and its speed is decreasing.

Answer:

d. The particle is moving in the negative direction, and its speed is decreasing

Explanation:

A. the gravitational potential energy of the ball is 8 J.

B. The height above the ground is approximately 0.255 m.

C. The speed of the ball is approximately 3.32 m/s.

D. the gravitational potential energy will be 25 J.

E. The maximum height above the ground is approximately 0.808 m.

F. The speed just before it lands on the ground is approximately 3.98 m/s.

A. Gravitational potential energy (PE) can be calculated using the equation:

 PE = Total mechanical energy - Kinetic energy

  PE = 25 J - 17 J

  PE = 8 J

 Therefore, the gravitational potential energy of the ball is 8 J.

B. The height above the ground can be calculated using the equation for gravitational potential energy:

  PE = m * g * h

  8 J = 3.2 kg * 9.8 m/s^2 * h

  h = 8 J / (3.2 kg * 9.8 m/s^2)

  h ≈ 0.255 m

  The height above the ground is approximately 0.255 m.

C. To find the speed of the ball, we can use the equation for kinetic energy:

  KE = (1/2) * m * v^2

  17 J = (1/2) * 3.2 kg * v^2

  v^2 = (2 * 17 J) / (3.2 kg)

  v ≈ √(34 J / 3.2 kg)

  v ≈ 3.32 m/s

The speed of the ball is approximately 3.32 m/s.

D. At its highest point, the gravitational potential energy is equal to the total mechanical energy, since the kinetic energy becomes zero. Therefore, the gravitational potential energy will be 25 J.

E. The maximum height above the ground can be found using the equation for gravitational potential energy:

  PE = m * g * h

  25 J = 3.2 kg * 9.8 m/s^2 * h

  h = 25 J / (3.2 kg * 9.8 m/s^2)

  h ≈ 0.808 m

  The maximum height above the ground is approximately 0.808 m.

F. The speed just before it lands on the ground can be calculated by considering the conservation of mechanical energy. Since the initial kinetic energy is 17 J and the final gravitational potential energy is zero (as it touches the ground), the remaining energy is converted into kinetic energy:

KE = Total mechanical energy - PE

  KE = 25 J - 0 J

  KE = 25 J

Using the equation for kinetic energy:   KE = (1/2) * m * v^2

  25 J = (1/2) * 3.2 kg * v^2

  v^2 = (2 * 25 J) / (3.2 kg)

  v ≈ √(50 J / 3.2 kg)

  v ≈ 3.98 m/s

The speed just before it lands on the ground is approximately 3.98 m/s.

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Most deserts are associated with the subtropical high.

A subtropical high is a semi-permanent high-pressure system located near the Tropics of Cancer and Capricorn. This high-pressure system creates stable atmospheric conditions that inhibit the formation of clouds and precipitation. As a result, regions located under the subtropical high, known as subtropical deserts, tend to be dry and arid.

Deserts cover about one-third of the Earth's land surface, and many of them are located in subtropical regions such as the Sahara, the Arabian Desert, and the Mojave Desert. Other deserts, such as those found in polar regions, are associated with different atmospheric systems.

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Most deserts are associated with the subtropical high.

These are areas of high atmospheric pressure located around the 30th parallel north and south of the equator, where the trade winds converge and create stable, dry conditions.

The descending air masses from the subtropical high-pressure zones prevent the formation of clouds and cause the hot, dry climate associated with deserts.

However, there are also other factors that contribute to the formation of deserts, such as the rain shadow effect, which occurs when moist air is forced to rise over a mountain range and then cools and releases its moisture on the windward side, leaving the leeward side dry.

Polar deserts are also formed due to the cold temperatures and low humidity of the polar regions.

Overall, while there are different factors that can lead to the formation of deserts, the subtropical high-pressure zones are the most commonly associated with desert regions due to the stable, dry conditions created by the descending air masses.

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The calculated mass is 5.5*10⁴ g.

The energy an object has as a result of motion is known as kinetic energy in physics. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The body holds onto the kinetic energy it acquired during its acceleration until its speed changes. The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.

K.E = 1/2 mv²

1 MJ= 10⁶ J

10⁶=1/2 m * 6*6

10⁶*2=m*36

m= 5.5 *10⁴ g

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Apparent expansion: If you heat the liquid directly using a container, the expansion you see is called a apparent expansion of the liquid. The apparent expansion of the liquid is the expansion of the liquid that is perceived by taking into account the expansion of the container. Its SI unit is “per kelvin”.

Apparent Expansivity is a term used in thermodynamics to describe a substance's volume change when it undergoes a change in temperature or pressure. More specifically, it refers to the change in volume per unit volume per unit change in temperature or pressure, depending on the system being analyzed.

If a substance expands by a certain amount when heated or compressed, the apparent expansivity would be the ratio of the change in volume to the change in temperature or pressure. The units of apparent expansivity are usually expressed in inverse degrees Celsius or inverse Pascals, depending on the system.

Apparent expansivity can be crucial in various fields of study, including materials science, geology, and engineering, as it can affect the behavior and properties of materials under different conditions.

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Answer:

In two-dimensional projectile motion, such as that of a football or other thrown object, there is both a vertical and a horizontal component to the motion. ... The key to analyzing two-dimensional projectile motion is to break it into two motions, one along the horizontal axis and the other along the vertical.

Answer:

In two-dimensional projectile motion, such as that of a football or other thrown object, there is both a vertical and a horizontal component to the motion. ... The key to analyzing two-dimensional projectile motion is to break it into two motions, one along the horizontal axis and the other along the vertical.

Answer: 20 minutes

Explanation:

Given the following :

Average speed of train = 120km/hr

Distance = 40km.

The time take by the train moving at an average speed of 120km/hr to cover a distance of 40km due is ;

Recall:

Speed = distance / time

Therefore,

Time taken = distance covered / speed

Time taken = 40km / 120km/hr

Time taken = 1/ 3 hr

Therefore, 1/3 rd of an hour equals

1/3 × 60 = 20 minutes.

Time taken) 20 minutes

Time taken by tain to cover distance is 20 minutes as:

Distance= 40 km

Speed= 120 km/h

Time= distance/speed

= 40/120

= 1/3 hour

= 20 min

or  =0.33 hrs

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Answer:

mass energy

Explanation:

because of the kinetic energy

Answer:

When Momentum is conserved it is called conservation of momentum

Explanation:

When Momentum is conserved it is called ________ .

When Momentum is conserved it is called conservation of momentum.

Law of momentum conservation is a physical law that the momentum (total momentum) of a system is invariant unless an external force acts on the system (closed system).

During the process all IMFs break and the solvent vaporizes.

During the boiling process, the solvent (hexanes) reaches its boiling point (68.73 °C) and vaporizes, meaning it changes from a liquid to a gas. The boiling point of a liquid is the temperature at which its vapor pressure is equal to the atmospheric pressure. The solvent molecules need to gain enough energy to overcome the intermolecular forces (IMFs) between them to change phase from liquid to gas. The process of vaporization requires an input of energy, which is supplied by heat. The heat energy provided causes the solvent molecules to absorb enough energy to overcome the IMFs, and the solvent vaporizes.

IMFs are the forces that hold the molecules of a substance together, and these forces are weaker in gases than in liquids. When the solvent vaporizes, the IMFs between the solvent molecules are broken, and the solvent molecules move freely in the gaseous state. So, in this case, during the boiling process, all IMFs break and the solvent vaporizes.

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Answer:

350 N

Explanation:

From the question given above, the following data were obtained:

Mass (m) of Go Kart = 35 kg

Initial velocity (u) = 12 m/s

Distance (s) = 7.2 m

Force (F) =?

Next, we shall determine the acceleration of the Go Kart. This can be obtained as follow:

Initial velocity (u) = 12 m/s

Distance (s) = 7.2 m

Final velocity (v) = 0 m/s

Acceleration (a) =.?

v² = u² + 2as

0² = 12² + (2 × a × 7.2)

0 = 144 + 14.4a

Collect like terms

0 – 144 = 14.4a

– 144 = 14.4a

Divide both side by 14.4

a = – 144 / 14.4

a = – 10 m/s²

The negative sign indicate that the Go Kart is decelerating when the brake was applied.

Finally, we shall determine the force the Go Kart have when the student locked the brake. This can be obtained as follow:

Mass (m) of Go Kart = 35 kg

Acceleration (a) = 10 m/s

Force (F) =?

F = ma

F = 35 × 10

F = 350 N

Thus, the Go Kart has a force of 350 N when the student locked the brake.

Answer:

Explanation:

f

=

v

λ

where v is the velocity of the wave

λ

is the wavelength.