the frequency of violet light is 7.7 x 10^14 hz. find its wavelength if it’s speed vacuum is 3.0 x 10^8 m/s. use given, find, equation

Answer:

6.38 * 10^14 Hz

Explanation:

it depends upon what state they are in like in motion or res

The flow of electricity in a certain path is the circuit.

According to the most recent data from satellites making precise measurements of the properties of the cosmic background radiation (CBR), it has been determined that dark energy makes up approximately 68% of the total energy density of the universe.

This means that dark energy is the dominant force driving the acceleration of the expansion of the universe.

The CBR is the afterglow of the Big Bang, and by analyzing its properties, scientists can learn more about the structure and evolution of the universe. The Planck satellite, launched in 2009, has been instrumental in providing high-precision measurements of the CBR and contributing to our understanding of dark energy.

Despite being the dominant force in the universe, dark energy remains a mystery. Its nature and properties are still largely unknown, but it is thought to be a property of space itself rather than a type of matter or energy. Ongoing research and observations will continue to shed light on this elusive phenomenon and deepen our understanding of the universe as a whole.

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Answer:

c

Explanation:

Answer:

The answer is below

Explanation:

A vector quantity is a quantity that has both magnitude and direction. The magnitude of a vector is the length of that vector.

The magnitude of a vector a with a x component of x and y component of y is given by the formula:

\(|a|=\sqrt{x^2+y^2}\)

Given that the vector has a magnitude of √8, the x component is 2 and the y component = y. Hence:

\(\sqrt{8}=\sqrt{2^2+y^2}\\\\squaring\ both\ sides:\\\\8=4 + y^2\\\\y^2=8-4\\\\y^2=4\\\\square\ root\ of\ both\ sides:\\\\y=\sqrt{4} \\\\y=\pm 2\\\\y=+2\ or\ y=-2\)

Answer:

The range and severity of symptoms can vary widely. Common symptoms include difficulty with communication, difficulty with social interactions, obsessive interests, and repetitive behaviors.

At any age

1. Loss of previously acquired speech, babbling or social skills.

2. Avoidance of eye contact.

3. Persistent preference for solitude.

4. Difficulty understanding other people's feelings.

5. Delayed language development.

6. Persistent repetition of words or phrases (echolalia)

7. Resistance to minor changes in routine or surroundings.

The electric field at the center of a square of side 2.0 cm is 0, and the potential at the center is also 0.

The electric field at the centre of a square an be identified by

1. In a square, the electric field at the center is zero due to the symmetry of the charges.

2. Since the square is neutral and has equal amounts of positive and negative charges distributed symmetrically, the net electric field at the center cancels out to zero.

3. The potential at a point is the amount of work done to bring a unit positive charge from infinity to that point.

4. In this case, since the square is neutral and the potential is a scalar quantity, the potential at the center is also zero.

5. Therefore, both the electric field and potential at the center of the square of side 2.0 cm are zero.

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Answer:

The Sun is a main-sequence star, and, as such, generates its energy by nuclear fusion of hydrogen nuclei into helium. In its core, the Sun fuses 620 million metric tons of hydrogen and makes 616 million metric tons of helium each second.

1. After being rubbed against rabbit hair, a piece of glass can acquire an electric charge.

2. Benjamin Franklin found that electric forces were caused by the transfer of electric charge between objects.

3. The mathematical relation between charge and force was elaborated by Charles-Augustin de Coulomb.

4. Electricity can be found in various sources, including power plants, batteries, lightning, and natural phenomena.

5. Charges on a charged insulator tend to stay in place and do not move freely like in conductors.

6. An ion is an atom or molecule that has gained or lost electrons, resulting in a positive or negative charge.

7. Electrical conductivity is a common property of all metals, allowing them to easily transmit electric current.

8. Metals are good conductors because they have a high number of free electrons that can move easily through the material.

9. Electric charges in thunderstorms are created through the separation of positive and negative charges within clouds.

10. Around 1880, enormous generators of charge were replaced by more efficient and compact electrical generators.

1. When glass is rubbed against rabbit hair, the rubbing action transfers electrons between the two materials. This can result in the glass acquiring an electric charge, either positive or negative, depending on the direction of electron transfer.

2. Benjamin Franklin conducted experiments with electricity and proposed that electric forces were caused by the transfer of electric charge. His famous experiment with a kite and a key during a thunderstorm led him to understand that lightning was a form of electrical discharge.

3. Charles-Augustin de Coulomb, a French physicist, elaborated the mathematical relation between charge and force. He formulated Coulomb's law, which describes the force between charged particles and is analogous to Newton's law of universal gravitation.

4. Electricity can be generated and found in various sources. Power plants produce electricity through the conversion of energy from sources such as coal, natural gas, or nuclear reactions. Batteries store and release electrical energy. Lightning is a natural occurrence that produces electricity through the discharge of atmospheric charges.

5. When a material is charged, the charges tend to stay on the surface or within the material itself. In the case of an insulator, which does not conduct electricity well, the charges remain localized and do not flow freely.

6. An ion is an atom or molecule that has gained or lost electrons, resulting in an imbalance of positive or negative charge. This imbalance makes ions either positively charged (cation) or negatively charged (anion).

7. Electrical conductivity is a fundamental property of metals. Metals have a large number of free electrons that are loosely bound to the atomic structure. These free electrons can move easily through the material, allowing for the efficient flow of electric current.

8. Metals are good conductors due to their atomic structure and the presence of free electrons. The metallic bond holds the atoms together in a lattice, while the delocalized electrons are not strongly associated with any particular atom. This allows the free electrons to move easily through the material, facilitating the flow of electric current.

9. Thunderstorms involve the separation of positive and negative charges within clouds. The upward movement of ice particles and the downward movement of raindrops cause a separation of charges, with positive charges accumulating at the top and negative charges at the bottom. This separation creates an electric field and, ultimately, leads to the discharge of lightning.

10. Around 1880, enormous generators of charge, such as friction machines and static electricity generators, were replaced by more efficient and compact electrical generators. These generators, based on electromagnetic principles, allowed for the generation of electric current through the rotation of coils within a magnetic field.

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Let r be the distance between the man and point Q. He applies a torque of

(r i ) × ((-800 N) j ) = ((-800 N) r ) k

pointing "into the page" with magnitude (800 N) r.

Meanwhile, the rope applies a torque of

((3.0 m) i ) × ((500 N) j ) = (1500 N•m) k

pointing out of the "page" with mag. 1500 N•m

The beam is held in place in a horizontal position, so the torques cancel and

(800 N) r = 1500 N•m

r = (1500 N•m)/(800 N) = 1.875 m ≈ 1.9 m

The operational amplifier circuit that will give an output that is proportional to the integral of the input voltage is the circuit with Input 1 and Output, as this is an integrator circuit.

An integrator circuit uses an operational amplifier and a feedback resistor to generate an output voltage that is proportional to the integral of the input voltage. The integral of a signal represents the area under the curve, and the feedback resistor in an integrator circuit causes the output voltage to increase or decrease in proportion to the area under the input voltage curve. Therefore, the Output of the integrator circuit will be proportional to the integral of the Input 1 voltage.

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Answer:

1.315 M

Explanation:

First, you need to find the number of moles of CuSO4 in 42.00 g. The molar mass of CuSO4 is calculated by adding the molar masses of Cu, S and 4 O atoms: 63.55 g/mol + 32.07 g/mol + (4 x 16.00 g/mol) = 159.62 g/mol.

So, the number of moles of CuSO4 in 42.00 g is: (42.00 g) / (159.62 g/mol) = 0.263 mol.

Since molarity is defined as the number of moles of solute per liter of solution, we need to convert the volume of water from mL to L: (200 mL) x (1 L / 1000 mL) = 0.2 L.

Finally, we can calculate the molarity by dividing the number of moles by the volume in liters: (0.263 mol) / (0.2 L) = 1.315 M.

So, the molarity of this solution is 1.315 M.

To determine the distance an armadillo moves relative to the slab on the x-axis, you would need to know the initial and final positions of both the armadillo and the slab.

Once you have these positions, you can calculate the relative distance by subtracting the initial position from the final position for both the armadillo and the slab, and then comparing the differences.

For example, suppose the armadillo starts at position x1a, and the slab starts at position x1s. After a period of time, the armadillo moves to position x2a, and the slab moves to position x2s.

To determine the distance traveled by the armadillo relative to the slab, we would subtract the initial positions of both the armadillo and the slab from their final positions:

Distance traveled by the armadillo relative to the slab = (x2a - x1a) - (x2s - x1s)

If the resulting value is positive, it means that the armadillo has traveled a greater distance relative to the slab on the x-axis. If the resulting value is negative, it means that the slab has moved a greater distance relative to the armadillo on the x-axis.

It is important to note that this calculation only considers the distance traveled on the x-axis. If the armadillo and the slab have moved in different directions on the y-axis or z-axis, this would not be accounted for in this calculation.

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Hypothesis: The absorption of sunlight on Earth's surface depends on the type of material that is present. Different materials have varying physical properties such as color, texture, and reflectivity, which affect their ability to absorb or reflect sunlight.

Thus, it is expected that materials that are darker in color and have rough textures will absorb more sunlight than those that are lighter in color and have smooth textures. Additionally, the angle of incidence of the sunlight on the surface, as well as the duration of exposure, may also influence the absorption of sunlight.  Factors that influence the absorption of sunlight at Earth's surface include the properties of the surface material, such as color, texture, and reflectivity. Darker materials tend to absorb more sunlight than lighter materials, while rougher surfaces absorb more than smoother ones. The angle of incidence of the sunlight on the surface, as well as the duration of exposure, may also affect absorption. Other factors that may influence absorption include the presence of clouds or other atmospheric conditions, as well as the latitude and altitude of the location. Understanding these factors can help us better understand the Earth's energy balance and the effects of climate change.

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complete question: Write a hypothesis for Section 1 of the lab, which is about the effect the type of material has on the absorption of sunlight on Earth’s surface. Be sure to answer the lesson question: "What factors influence the absorption of sunlight at Earth's surface?"

Answer:

The correct solution is "15 kgm/s". A further explanation is given below.

Explanation:

The given values are:

Mass,

m = 5 kg

Velocity,

v = 3 m/s

By applying the formula of momentum, we get

⇒  \(P=m v\)

On substituting the given values, we get

⇒      \(=5\times 3\)

⇒      \(=15 \ kgm/s\)

Athletes are asked to immediately squat to a depth of their choosing and then jump as high as they can in the Countermovement Jump (CMJ), a vertical jump test.

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Answer:

The doctors could see if her cells are getting the molecules they need from food and air

Explanation:

The doctors could see if her cells are getting the molecules they need from food and air. Doing so allows the doctors a general overview of how well her body's biological systems are performing since the basic necessities of the human system are food and oxygen. Therefore if the body is receiving both food and oxygen properly and distributing it properly and efficiently as well without any problems then the most likely outcome is that she is healthy enough to perform her tasks in the submarine under more pressure.

Answer:

The doctors could see if her cells are getting the molecules they need from food and air

Explanation:

Answer:

Option D (Electricity can flow through it under special conditions ) seems to be the correct choice.

Explanation:

Other options that are provided are not related to the given theory. So that the above would be the correct choice.

Statement "Lack free electrons that can move to other atoms " describe semi-conductor.

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As the projectile moves down, its vertical velocity is positive.

As the projectile moves down, its acceleration remains constant.

As the projectile moves up, its vertical velocity decreases.

As the projectile moves down, its vertical velocity increases.

As the projectile moves up, its acceleration remains constant.

As the projectile moves up, its vertical velocity is negative.

As the projectile moves down, its horizontal velocity remains constant.

As the projectile moves up, its horizontal velocity remains constant.

A projectile is any object thrown into space upon which the only acting force is gravity. The primary force acting on a projectile is gravity.

In a projectile motion, acceleration is always constant and acts vertically downward. Also velocity changes during a projectile motion.

The true statements about projectile motion in the given options include;

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Answer:

(b) is the correct answer

If the acceleration is 10 m/s^2 then in two seconds the particle will go from 20 m/s to zero speed.

In the next two seconds the particle will go from zero speed to 20 m/s.

The speeds must be equal to satisfy conservation of energy.

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 6 × 3

We have the final answer as

Hope this helps you

Answer:

The distance is \(d = 79 \ m \)

The displacement is 43 m to the left

Explanation:

Generally the distance is mathematically represented as

\(d = a + b + c \)

substituting 35 meters for b, 18 meters for a and 26 meters for c

So

\(d = 35 + 18 + 26 \)

\(d = 79 \ m \)

In the question we are going to assume the left direction is negative while right direction is positive

Generally the displacement is mathematically represented as

\(D = x + y + z\)

substituting (- 35) meters  for y, (+ 18 )meters for x and  (-26) meters for z

\(D = 18 - 35 -26\)

\(D = - 43\ m\)

So  the displacement is 43 meters to the left

The quotation highlights the colonists' fear and uncertainty about their new environment. The phrase "the Martian air might draw his soul from him" suggests that the atmosphere of Mars is so inhospitable that it could kill the colonists.

The second quotation highlights the colonists' isolation and the fragility of their situation on Mars.

"The wind blew, whining. At any moment the Martian air might draw his soul from him, as marrow comes from a white bone." The story takes place on Mars, where a group of human colonists have settled after leaving a war-torn Earth. The comparison to "marrow coming from a white bone" is a vivid metaphor that conveys the idea of something being drawn out of a person with great force.

"A radio flash just came. Atom bombs hit New York! All the space rockets blown up. No more rockets to Mars, ever!" The colonists on Mars receive this radio message, which tells them that a catastrophic event has occurred on Earth. The news that atom bombs have hit New York and that all the space rockets have been destroyed is a devastating blow to the colonists, who had been hoping to receive supplies and reinforcements from Earth. It also suggests that their dreams of building a new civilization on the red planet may be dashed by events beyond their control.

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The dump truck has 1.29 times more kinetic energy than the subcompact car.

The kinetic energy of an object is directly proportional to its mass and the square of its velocity. This means that if two objects have the same velocity, the one with the greater mass will have more kinetic energy.

To compare the kinetic energy of the subcompact car and the dump truck, we can use the equation KE = (1/2)mv², where KE is the kinetic energy, m is the mass of the object, and v is the velocity of the object.

Plugging in the values for the mass and velocity of the subcompact car, we find that its kinetic energy is KE = (1/2)(1400 kg)(v)². Plugging in the values for the mass and velocity of the dump truck, we find that its kinetic energy is KE = (1/2)(1800 kg)(v)².

We can then compare the two expressions for kinetic energy to find the ratio of the kinetic energy of the dump truck to the kinetic energy of the subcompact car:

(1/2)(1800 kg)(v)² / (1/2)(1400 kg)(v)² = (1800 kg) / (1400 kg) = 1.29

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6. The forces will act as follows:

7. The forces will act as follows:

8. The forces will act as follows:

The force surfaces apply to stop solid objects from passing through one another is known as the normal force. A contact force is a normal force. A normal force cannot be applied between two surfaces that are not in contact.

It acts opposite to gravitational force for a body resting on a horizontal surface.

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"The human perception of pitch primarily depends on frequency. " The correct answer is option: D.

Pitch refers to the subjective quality of sound that enables us to distinguish between high and low sounds. Frequency is physical property of sound that measures the number of cycles of vibration per second and is measured in hertz. The higher  frequency of a sound wave, the higher  pitch we perceive. This is because our ears are sensitive to different frequencies and can distinguish between them based on activity of the hair cells in  cochlea of the inner ear. While loudness, resonance, and intensity can also affect our perception of sound, they are not  primary factors that determine pitch. Hence correct answer is option: D.

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---The complete question is , The human perception of pitch primarily depends on __.

A. Loudness

B. resonance

C. intensity

D. frequency --

The correct option is option 3.

To find the angular acceleration of the tire, we can use the formula:

angular acceleration (α) = (final angular speed - initial angular speed) / time

Given:

Number of revolutions (n) = 4.73 rev

Time (t) = 1.78 s

First, let's convert the number of revolutions to radians:

Angle (θ) = n * 2π

Substituting the values:

θ = (4.73 rev) * (2π rad/rev)

Now, we can calculate the initial angular speed (ω_initial) using the formula:

ω_initial = 0 rad/s (as the tire starts from rest)

Next, let's calculate the final angular speed (ω_final) using the formula:

ω_final = θ / t

Now, we can calculate the angular acceleration (α) using the formula:

α = (ω_final - ω_initial) / t

Substituting the values:

α = (ω_final - 0 rad/s) / t

Now, let's calculate the angular acceleration:

α = ω_final / t

Substituting the values:

α = (θ / t) / t

Calculating the result:

α ≈ 31.14749 rad/s²

Therefore, the angular acceleration of the tire is approximately 31.14749 rad/s².

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Answer:

I believe the answer is GPS

Explanation: