X-rays with a wavelength of 120.0 pm undergo Compton scattering.(b) Find the energy of the scattered electron in each case.

At STP, 128 grams of oxygen occupy an area of 89.6 liters.

option A

Simply put, the space occupied by a three-dimensional solid is its volume. Solids include a cube, a cuboid, a cone, a cylinder, or a sphere. Many shapes have different volumes.

Each three-dimensional item needs a certain amount of room. This area's volume has been calculated. The area filled by an item within the confines of three-dimensional space is referred to as its volume. The capacity of the thing is another name for it.

32 grams of oxygen make up 1 mole.

128 g / 32 g/mol = 128 g / mol of oxygen

= 4.0 mol O2

This has volume at standard temperature and pressure.

4.0 mol divided by 22.4 L/mol

= 89.6 L

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The question that would allow a student to determine if a wave was an

electromagnetic wave are:

Option A and C are the correct options.

The question that would allow a student to determine if a wave was an

mechanical waves are:

Option B and D are the correct options.

This refers to a wave that has the ability to transmit its energy through a vacuum. Mechanical waves need a medium in order to send their energy from one location to another. An example of a mechanical wave is sound wave.

This refers to waves that are made as a result of vibrations between an electric field and a magnetic field.   Electromagnetic waves are made up of oscillating magnetic and electric fields.

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The size of the electric current is 155 Amperes.

Calculation:

I = Q / t

I = 93.0 C / 0.601 s

I = 155 C/s

I = 155 A

Electric current is the flow of charged particles such as electrons and ions, that travel through a conductor or space. It is measured as the net flux of charge to the surface or control volume. Electricity starts with atoms.

Atoms are made up of protons neutrons and electrons. Electricity is generated when electrons are moved from atom to atom by an external force. The flow of electrons is called current. Current refers to the flow of current in an electronic circuit and the amount of current that flows through the circuit.

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Answer:

balanced: a train moving at a constant speed, the moon orbiting the earth at a constant speed, a lamp sitting on a desk, an apple hanging on a tree

unbalanced: a skier coming down a mountain, a car accelerating from the start line, a soccer ball after it was kicked, a parachuter falling to ground

Explanation:

all the balanced ones are either moving at a constant speed or are skill

all the unbalanced ones were disturbed by some sort of force causing them to accelerate, go faster, blah blah blah

If his resistance is 2200 Ohm , the fatal voltage is 110 Volt.

The relation between resistance, voltage, and current is given by the Ohm law:

V = I R

Where:

V = voltage

I = current

R = resistance

Parameters from the problem are:

I = current = 50 mA = 0.05 A

R = resistance = 2200 Ohm

Hence,

V = IR

  = 0.05 x 2200 = 110 Volt

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The astronaut's height, as measured from the space station, will appear contracted due to relativistic effects. Due to relativistic length contraction, the astronaut's height, as measured from the space station, appears to be approximately 3.52 meters.

According to the theory of special relativity, objects in motion relative to an observer will experience length contraction along the direction of motion. In this case, the spaceship is moving at a speed of 0.9 times the speed of light (0.9 c) relative to the space station.

The length contraction factor, denoted by γ, can be calculated using the Lorentz factor:

γ = 1 / √(1 - v²/c²)

Where v is the velocity of the spaceship and c is the speed of light. Plugging in the values, we have:

γ = 1 / √(1 - 0.9²)

γ ≈ 1.92

To determine the astronaut's height as measured from the space station, we multiply her actual height by the length contraction factor:

Height (as measured from the space station) = Actual height × γ

Height (as measured from the space station) = 1.83 m × 1.92

Height (as measured from the space station) ≈ 3.52 m

Therefore, due to relativistic length contraction, the astronaut's height, as measured from the space station, appears to be approximately 3.52 meters.

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(a) The moment of inertia of the system about the axis can be calculated using the formula for the moment of inertia of a point mass rotating about an axis.

(b) The angular momentum of the system about the axis can be determined by multiplying the moment of inertia by the angular speed.

(c) If the masses are pulled into a smaller radius, the moment of inertia will change, resulting in a new angular momentum for the system.

(d) The new angular speed of each mass can be calculated using the principle of conservation of angular momentum.

(e) The change in energy of the masses can be determined by comparing the initial and final kinetic energies of the system.

(a) To calculate the moment of inertia of the system about the axis, we consider the two point masses rotating at a given radius. The moment of inertia for each point mass is given by the formula I = m * r², where m is the mass and r is the radius.

Since there are two masses, we can calculate the total moment of inertia by summing the individual moments of inertia.

(b) The angular momentum of the system is determined by multiplying the moment of inertia by the angular speed. Using the formula L = I * ω, where L is the angular momentum, I is the moment of inertia, and ω is the angular speed, we can find the angular momentum of the system.

(c) If the masses are pulled into a smaller radius, the moment of inertia will change. We can calculate the new moment of inertia using the same formula as in (a) but with the new radius. With the new moment of inertia, we can determine the new angular momentum of the system.

(d) To find the new angular speed of each mass, we apply the principle of conservation of angular momentum. The initial angular momentum of the system is equal to the final angular momentum. By rearranging the equation L = I * ω and solving for ω, we can calculate the new angular speed.

(e) The change in energy of the masses can be determined by comparing the initial and final kinetic energies of the system. The initial kinetic energy is given by (1/2) * I * ω², where I is the initial moment of inertia and ω is the initial angular speed.

Similarly, the final kinetic energy can be calculated using the new moment of inertia and angular speed. The difference between the initial and final kinetic energies represents the change in energy of the masses.

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Answer:

27 cm3

Explanation:

the length of the screen is 70.8 cm.

Width of the central bright band of the diffraction pattern,

δy = λD/d

Where,λ = wavelength of light= 500 nm= 500 × 10⁻⁹ m

Substituting the given values,

δy = (500 × 10⁻⁹ × 1)/4 × 10⁻³= 1.25 × 10⁻⁴ m = 0.125 mm

Thus, the width of the bright patch is 0.12 cm < 0.125 mm. Hence, the entire bright patch would not have formed.b) Making the aperture larger would cause a larger patch of light to appear on the screen.

c) Given,Distance of aperture from the point source, d = 4 mm

Distance of the screen from the aperture, D = 1 m

Distance of the observer from the aperture, x = 2.1 m

Distance of the observer from the screen, L = 2.1 + 1= 3.1 m

Length of the screen, l = 1 m

Let y be the length of the bright patch at x = 2.1 m

Length of the bright patch at x = 2.1 m is given by,

δy' = λL/x = λ(2.1 + 1)/2.1 = 1.476λ

Length of the bright patch on the screen,

δy = λD/d = λ(1)/(4 × 10⁻³) = 0.25λ

Therefore, we get,l/y = δy'/δy= (1.476λ)/(0.25λ)= 5.904Length of the screen, l = y × 5.904= 12 × 5.904= 70.848 ≈ 70.8 cm

Thus, the length of the screen is 70.8 cm.

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The time for a radar signal to travel to the moon and back, a one-way distance of about 3.8×108m, is approximately 2.56 seconds.

Radar signals are a type of electromagnetic wave, which means that they travel at the speed of light. The speed of light is around 3.00 × 108 m/s, which means that it takes a radar signal about 2.56 seconds to travel to the moon and back.The distance between the Earth and the moon varies depending on the moon's orbit. At its closest point, the moon is about 363,104 kilometers (238,855 miles) away from Earth.

At its farthest point, the moon is about 405,696 kilometers (252,088 miles) away from Earth. By measuring the time it takes for a radar signal to bounce off the moon and return to Earth, scientists can calculate the moon's distance from Earth to a high degree of accuracy.

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Hello :D

For this applicate the formula:

\(\boxed{d=vt}\)

Data:

d = Distance = ?

v = Velocity = 4 m/s

t = Time = 2160 s

Replace according formula:

d = 4 m/s * 2160 s

d = 8640 m

Result:

The distance is of 8640 meters.

The bird cover the distance of "8640 meters".

According to the given question,

Velocity, v = 4 m/s

Time, t = 2160 s

We know the formula,

→ Distance = Velocity × Time

or,

→ d = vt

By substituting the values, we get

       = \(4\times 2160\)

       = \(8640 \ m\)

Thus the above answer is correct.  

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Answer:

Sure, I'd be happy to help! Can you please let me know which form you are trying to fill out and what specific issues you are having?

When randomly arranged low-energy protons enter the magnetic field they become static and parallel with the main magnetic field and net magnetization.

The magnetic moments of each individual hydrogen atom are added to create the net magnetization vector in MRI. Individual magnetic moments are arbitrarily oriented when there is no external magnetic field, and because they are in opposition, the net magnetization vector is thought to be zero.

The intensity of magnetization, or just magnetization, is the term used to describe the magnetic dipole moment per unit volume of a substance (M). The relationship between the applied magnetic field (H) and the material's internal magnetic flux density or magnetic induction (B) is linear.

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If the distance between two objects is 4.00 m and the distance is tripled, then the new distance will be 12.00 m.

To find out the new distance, you need to multiply the original distance by the factor by which it is tripled, which is 3.In other words, if the distance between two objects is "d", and it is tripled, then the new distance is 3d.

Using this formula, if the original distance is 4.00 m, then the new distance will be 3 x 4.00 m = 12.00 m.

The new distance is three times the original distance.

Therefore, the new distance between the two objects will be 12.00 meters if the original distance was 4.00 meters and it was tripled.

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The site  that i think feel presented the most objective, unbiased information about cord blood banking is Wikipedia because it tends to give you different opinions or views from different expert in those field.

Anyone who needs stem cells, including a member of your close family, can benefit from cord blood banking. Your baby's cord blood contains stem cells. Numerous life-threatening diseases, including cancer, have been found to benefit from the use of stem cells from cord blood.

The following are some drawbacks of cord blood banking: Since there aren't enough stem cells in cord blood, adults who need transplants will need cord blood stem cells from several donors. In a private bank, people must pay a fee to store their cord blood, which could be pricey.

Therefore, the American Medical Association and the American Academy of Pediatrics advise against saving cord blood as a sort of "biological insurance," as the rewards are insufficient to outweigh the disadvantages. Hence i believe Wikipedia  gave me varieties of text about the issue.

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A drill log represents information about the quality of the groundwater rock layers and the presence or absence of water.

A drill log is a record or documentation of the geological information obtained during the process of drilling a well or borehole.

It provides valuable information about the subsurface conditions, including the quality of the groundwater rock layers and the presence or absence of water.

Drill logs typically include details such as the depth at which different rock layers or formations were encountered, the composition and characteristics of the rock layers, and any indications of water presence, such as water levels, flow rates, or water-bearing formations.

By examining a drill log, hydrogeologists and geologists can assess the quality and potential yield of groundwater sources in a particular area.

It helps in understanding the geological formations, stratigraphy, and hydrogeological properties of the subsurface, which are crucial for various applications such as water resource management, well design, and groundwater exploration.

In summary, a drill log provides essential information about the quality of groundwater rock layers and the presence or absence of water, offering valuable insights into the hydrogeological characteristics of a specific location.

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Answer:

See below

Explanation:

F=ma

F/m = a    =  365/80 =4.56 m/s^2

your question seems incomplete, I think you are asking the question which is given below.

Question: As the frequency of electromagnetic waves increases, what happens to the wavelength?

when the frequency of an electromagnetic wave increases, its wavelength would decrease, according to eq (i).

speed of light = frequency X wavelength ............(i)

as the speed of light is constant in the same medium.

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Answer:

Sh = Vh t         horizontal distance traveled

Sh = 10.2 m/s * 3.7 s = 37.74 m

The radar range equation is used to compute the range distance of the aircraft. The radar range equation is given by: are the transmitting and receiving antenna gain respectively,

Therefore, the range distance of discovering this airplane is approximately $41.1$ km.Solutions to extend the range distance of the radar can be:Use a more directional antenna on the radar to increase gain and reduce sidelobes

Use higher transmitting powerUse a lower operating frequencyUse pulse compression or frequency modulationUse a larger aperture antennaUse a more sensitive receiver

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Answer:

a = 0.3 m/s²

Explanation:

Given: 45 N, 150 kg

To find: a

Formula: \(a = \frac{F}{m}\)

Solution: To find a, divide the force by the weight  

A = F ÷ m

=  45 ÷  150

= 0.3 m/s²

Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.

Answer:

The picture gives information about how many kinds of atoms are in carbon dioxide and how they are connected.

Explanation:

This was the answer to my test on Plato. I hope this helps :)

Answer:

The picture gives information about how many kinds of atoms are in carbon dioxide and how they are connected.

Explanation:

The rotational inertia of the assembly decreases by 14.9% when the innermost particle is removed and 49.2% when the outermost particle is removed.

The rotational inertia of an assembly is calculated by the sum of each particle's moment of inertia, which is calculated by its mass multiplied by the square of its distance from the axis of rotation. When one particle is removed from the assembly, the rotational inertia decreases by a percentage equal to the amount of mass removed multiplied by the square of the distance of that particle from the axis of rotation.

For the innermost particle, since it is closest to the axis of rotation, its removal will cause the greatest decrease in rotational inertia. The percentage decrease in rotational inertia when the innermost particle is removed would be 33% x (0.0121 kg x (3.045 cm)2) / (0.0363 kg x (6.09 cm)2) = 14.9%.

For the outermost particle, since it is farthest from the axis of rotation, its removal will cause the smallest decrease in rotational inertia. The percentage decrease in rotational inertia when the outermost particle is removed would be 33% x (0.0121 kg x (9.135 cm)2) / (0.0363 kg x (6.09 cm)2) = 49.2%.

In summary, the rotational inertia of the assembly decreases by 14.9% when the innermost particle is removed and 49.2% when the outermost particle is removed.

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If you change the value of the battery voltage, the current through the circuit will also change. This is because the current in a circuit is directly proportional to the voltage. This relationship is described by Ohm's Law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R), or I = V/R.

If you increase the voltage in a circuit, the current will also increase. Conversely, if you decrease the voltage, the current will decrease as well. This is because the higher the voltage, the greater the potential difference between the two ends of the circuit, which causes more electrons to flow and therefore creates a higher current.

It is important to note that the resistance of the circuit also plays a role in determining the current. If the resistance stays the same and the voltage changes, the current will change accordingly. However, if the resistance changes while the voltage stays the same, the current will also change.

In summary, the current in a circuit is directly proportional to the voltage and inversely proportional to the resistance. Changing the value of the battery voltage will therefore change the current through the circuit.

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The required total momentum of the system at this instant is calculated to be 9.16 kg m/s.

Given that,

Mass of the first cart, m₁ = 2.5 kg

Mass of the second cart, m₂ = 1.3 kg

Velocity of the first cart before collision, u₁ = 4.6 m/s

Velocity of the second cart before collision, u₂ = -1.8 m/s

The total momentum of the system before collision is calculated as follows,

P t = P₁ + P₂

P t = m₁ u₁ + m₂ u₂ = 2.5 × 4.6 + (1.3 × -1.8) = 11.5 - 2.34 = 9.16 kg m/s

Thus, total momentum of the system of the two carts at this instant is 9.16 kg m/s.

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The crystal of potassium chloride has a definite shape because it consists of particles that are held in fixed positions.

Ionic solids are crystalline in nature. This means that the ions that compose them are arranged in an orderly manner to form a crystal lattice.

This crystal lattice is composed of a regular repeating pattern called the unit cell. The ions in these unit cells are held together by strong electrostatic forces.

Hence, the crystal of potassium chloride has a definite shape because it consists of particles that are held in fixed positions.

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The amount of people n should poll to guarantee the actual error on ˆpn is less than with 95% confidence, even if we don’t know p is n = (1.96² × 0.5 × 0.5) / E².

To guarantee the actual error on the estimated proportion (ˆpn) is less than a specific value with 95% confidence, even if you don't know the true proportion (p), you should use the sample size formula for proportions:

n = (Z² * p * (1-p)) / E²

Since we don't know p, assume the worst case scenario, which is p = 0.5 (as this maximizes the variance). The Z value for a 95% confidence level is 1.96. E is the desired margin of error. Plug these values into the formula and solve for n.

n = (1.96² × 0.5 × 0.5) / E²

Adjust the value of E to find the minimum sample size (n) that guarantees the desired actual error with 95% confidence.

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Answer:

Explanation:

An atom losses or gains electrons to fill the outermost shell. In this process , ionic bonds are formed. Chemical bonds are formed when electrons are shared.