Select polymers that are more likely to crystallize based upon their chain chemistry & structure.

Answer: acceleration is when speed increase

Answer:

0.5

Explanation:

Two resistors with resistances of 2 ohms and 4 ohms, respectively, are connected in series with a battery. The current through the 2 ohms resistor is 2A. How would one find the current through the 4 ohms resistor?

I = V/R we get I = 10/ 200 or .05 amps.

Answer:

what is the question.

Explanation:

Answer: A.) Change in Velocity over Time

Explanation:

The definition of acceleration is Δv/t, or the change in velocity over time. Acceleration, like velocity, will therefore have a magnitude, as well as a direction.

Answer:

86.1125 meters

Explanation:

Here is what we are given:

Initial Velocity - 0 m/s

Acceleration - 2.5 \(m/s^2\)

Time - 8.3 s

We can use this motion equation. This equation is derived from one of the common kinematics equations. It may not look familiar.

\(x=0.5t^{2}a\)

We can now substitute our values into the equation.

\(x=0.5*8.3^{2}*2.5\)

\(x=0.5*68.89*2.5\)

\(x=86.1125\)

The statement is false. Drug overdose deaths do not surpass passed deaths caused by road accidents and firearms.

Why do Americans die sooner than people in other developed countries?

The three main causes for Americans dying sooner than people in other countries are drugs, guns and cars. These three are the biggest causes of injury and death in the US and altogether account for more than 100,000 early deaths each year in the country.

It was found that, on average, men and women in the other high-income nations can be expected to live about 2.2 years longer than men and women in America — and cars, guns and drugs played a prominent role.

Among women, gun deaths were 4 %, drug overdoses 9%, and car crashes 6 %, whereas in men, gun deaths explained 21%, drug overdoses 14%, and car crashes were 13%.

So therefore, deaths caused by drug overdoses are not the leading causes of death in the US. They come a close second to firearm deaths and car crash deaths fall third.

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If the average temperature of the sun increased, the wavelength of peak solar emission would decrease. This is because the peak wavelength of radiation emitted by an object is inversely proportional to its temperature, as described by Wien's Law.

Wien's Law states that the wavelength of the peak emission from a blackbody radiator is given by λ_max = b/T, where λ_max is the wavelength of maximum emission, T is the temperature of the radiator, and b is a constant known as Wien's displacement constant. As the temperature of the sun increases, the value of T in this equation increases, and therefore the value of λ_max decreases.

Thus, if the temperature of the sun were to increase, the peak of solar emission would shift to shorter wavelengths, which would increase the amount of high-energy radiation emitted by the sun. This would have important implications for the Earth's climate and could increase the risk of harmful effects of radiation, such as skin cancer and damage to satellite electronics.

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The flux through each turn in the coil of the inductor is N * (Q / (2 * C * L)) * A.In a series L C circuit, the capacitor and inductor are connected in series. The initial charge on the capacitor is Q, and it is being discharged until the charge on the capacitor is Q/2. We need to find the flux through each of the N turns in the coil of the inductor in terms of Q, N, L, and C.

To find the flux, we can use the equation:

Flux (Φ) = N * B * A

Where:
- Φ is the flux
- N is the number of turns in the coil
- B is the magnetic field strength
- A is the cross-sectional area

In a series L C circuit, the inductor generates a magnetic field when current flows through it. The current in the circuit is related to the charge on the capacitor by the equation:

Q = C * V

Where:
- Q is the charge on the capacitor
- C is the capacitance
- V is the voltage across the capacitor

Since the charge on the capacitor is Q/2, we can rewrite the equation as:

Q/2 = C * V

Now, let's express the voltage in terms of the current using the equation for the inductor:

V = L * di/dt

Where:
- L is the inductance
- di/dt is the rate of change of current with time

We can rearrange the equation to solve for di/dt:

di/dt = V / L

Substituting this expression for di/dt back into the equation for the voltage, we have:

V = L * (V / L)

Simplifying, we get:

V = V

This equation tells us that the voltage across the capacitor is equal to the voltage across the inductor. Therefore, the flux through each of the N turns in the coil of the inductor, in terms of Q, N, L, and C, is given by:

Flux (Φ) = N * B * A = N * (V / L) * A = N * (Q / (2 * C * L)) * A

So, the flux through each turn in the coil of the inductor is N * (Q / (2 * C * L)) * A.

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The Sweden

___________

The particle's acceleration is 3.7*10-9 m/s2, according to the formula. A point mass of 8.25 kg and a point mass of 13.5 kg are kept in site at a distance of 50.0 cm.

Here, the mass m is pulled toward the two particles by gravity. the force generated by the initial mass moving in a -X direction and the second mass moving in a +X direction.

The following is the expression for Newton's law of gravitation:

F =GMm/r^2

The gravitational constant G, the masses M and m, the gravitational force F, and the separation between the mass center's r are all present in this situation. the force acting against the first mass is negative, When we substitute F=GM1m/r1, we obtain,

F1 = -(6.67x10^-11 Nm'/kg)(8.25kg)m/(0.2m)*(0.2m)=-1.37x10^-8 m

F2 also equals 1*10^-8.

F2 = F1+F2

ma = F1+F2

acceleration = F1+F2/m

acceleration = -1.3*10^-8 +1*10^-8m/m

a = -3.7*10^-9 m/s^2

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Answer:

Having begun as a "science of mental life", psychology evolved in the 1920's into the "scientific study of observable behavior". ... Today's science emphasizes the interaction of genes and experiences in specific environment

Answer:

Psychology continues to develop over the years all the way up to today by new and better scientific like science emphasizes. Also new experiences in specifics enviroment.

Explanation:

Hope it helped :)

The conservation laws we can find the complete reaction of Uranium-235 and the correct answer is:

               \(^{235}_{92}U + ^1_0n\)  → \(^{236}_{92} U*\)

               \(^{236}_{92}U*\)  →  \(2 \ ^{116}_{46} \ Pd + 2 \ ^1_0n + 195 \ MeV\)

Nuclear fission occurs when a heavy nucleus is divided into two smaller nuclei, for the process to occur requires the absorption of some particle or some form of energy that creates an unstable heavy nucleus this nucleus passes to a lower energy configuration when be divided.

In the case of Uranium 235 this occurs when a neutron is absorbed, according to the reaction

                    \(^{235}_{92} U + ^1_0n\) →  \(^{236}_{92} U*\)

Where uranium 235 and 236 of atomic mass, * indicates that the nucleus is unstable and decays after about 10⁻¹² s

Indicate that one of the daughter nuclei is palladium, which is why a partial reaction remains

                  ^{236}_{92} U* → \(^{116}_{46}Pd\) + Y + \(^1_0n\)

Where Y is the other daughter nucleus and n the neutrons released in the reaction

The conservation laws must be fulfilled, let's use:  the conservation of atomic number and mass

.

1) The conservation of the atomic number allows to find the number of protons (atomic number) to atoms Y

                #_protons = 92- 46

                #_protons = 46 protons

The other atom is also a Palladium atom, the reaction is

           ^{236}_{92} U* → \(2 \ ^{116}_{46}Pd\)  + \(^1_0n\)

2) Conservation of mass we can find the number of neutrons emitted in the reaction

The mass of the palladium atoms is

                   m_ {children} = 2  116.9178 u

                   m_ {children} = 233.8256 u

The mass difference between the uranium and the daughter nuclei is

                   Δm = m_ u - m_ {daughters}

                   Δm = 236.0455561 - 233.8256

                   Δm = 2.2199561 u

The mass of a neutron tabulated is m_n = 1.000866492 u

Consequently there is only mass for two neutrons that must be emitted in the process, the mass of the two neutrons is

                  m_ {total neutron} = 2.001732984 u

The amount of mass remaining is converted into energy

                   ΔE = m c²

The remaining mass to be convert to energy is

                 m_{remaining} = 2.2199561 - 2.001732984 = 0.2103626 u

                  m = 0.2102626 u (1.66054 10⁻²⁷ kg / 1u) = 0.3491495 10⁻²⁷ kg

                  ΔE = 0.3491495 10⁻²⁷ (2.99 10⁸) ²

                  ΔE = 3.1214 10⁻¹¹ J

It is more common to give this energy in eV

                 ΔE = 3.1214 10⁻¹¹ J ( \(\frac{1 eV}{1.6 \ 10^{-19} J}\) ) = 1.9509 10⁸ eV

We summarize the complete reaction is

               \(^{235}_{92}U + ^1_0n\)  → \(^{236}_{92} U*\)

               \(^{236}_{92}U*\)  →  \(2 \ ^{116}_{46} \ Pd + 2 \ ^1_0n + 195 \ MeV\)

We can see that this reaction is not very efficient since a neutron is needed to start it and only two neutrons are emitted at the end of the process, even when the amount of energy emitted is high 195 MeV

In conclusion Using the conservation laws we can shorten the complete reaction of Uranium giving that the correct answer is:

                  \(^{235}_{92}U + ^1_0n\)  → \(^{236}_{92} U*\)

               \(^{236}_{92}U*\)  →  \(2 \ ^{116}_{46} \ Pd + 2 \ ^1_0n + 195 \ MeV\)

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The average velocity between times t=a and t=b is given by the change in position divided by the change in time: average velocity = (s(b) - s(a)) / (b - a).

To calculate the average velocity, we need to determine the change in position and the change in time. The change in position is obtained by subtracting the initial position s(a) from the final position s(b), while the change in time is obtained by subtracting the initial time a from the final time b.

Dividing the change in position by the change in time gives us the average velocity between the two time points. This formula is derived from the definition of velocity as the rate of change of position with respect to time.

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The ratio of power dissipation in the parallel circuit to that in the series circuit depends on the specific values of resistance (or impedance) in each circuit.

In general, for a given voltage source, the power dissipated in a circuit can be calculated using the formula P = V^2/R, where P is power, V is voltage, and R is resistance.

In a parallel circuit, the total resistance decreases as more branches are added. Therefore, the power dissipated in the parallel circuit is typically higher than that in the series circuit. This is because the lower total resistance in the parallel circuit allows for a higher current flow, resulting in increased power dissipation.

However, without specific resistance values for the bulbs or other components in the circuits shown in the video, we cannot determine the exact ratio of power dissipation between the parallel and series circuits.

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Those who favor the free trade policies would most likely believe that restrictions harm consumers.

A trade policy known as "free trade" does not impose import or export quotas. It also can be thought of as the market economy concept used in global trade. Political parties with economic liberal stances generally support free trade while protectingionism, which is the antithesis of free trade, is typically backed by parties with economic nationalism and left-wing stances.

The International Commerce Organization's international trade deals currently include the majority of countries as members.

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The air carbon arc-cutting process requires compressed air in the range of approximately 80 psi to 100 psi. This cutting method utilizes an electric arc to generate heat, which melts the metal being cut, while the compressed air stream blows away the molten material, creating a clean and precise cut.

The pressure of the compressed air plays a crucial role in the effectiveness and quality of the cut.

It is important to maintain the appropriate pressure range (80-100 psi) for optimal cutting results. Insufficient air pressure may result in inadequate removal of molten material, leading to a poor-quality cut or even an incomplete cut. On the other hand, excessive air pressure can cause unnecessary wear on the cutting equipment, as well as create a wider kerf or excessive distortion in the workpiece.

The air carbon arc cutting process is suitable for cutting various types of metals, including steel, stainless steel, aluminum, and cast iron. This method is popular in various industries due to its high cutting speed, minimal heat-affected zone, and versatility in cutting various metal thicknesses. It is essential to select the appropriate cutting parameters, including air pressure, to achieve the best possible cutting results.

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The scattering of photons can give rise to phenomena such as fluorescence, Raman scattering, and Rayleigh scattering.

A photon can be visualized as a particle of light that carries energy and momentum. It is the basic unit or quantum of electromagnetic radiation, including visible light, ultraviolet light, and X-rays. While photons do not have mass, they have both wave-like and particle-like properties, and their behavior is described by quantum mechanics.

The behavior of photons in a medium depends on the refractive index of the medium, which is a measure of how much the speed of light is reduced when it passes through the medium. When a photon enters a medium, it interacts with the atoms or molecules in the medium and can be absorbed, transmitted, or scattered.

If a photon is absorbed, it can transfer its energy to an atom or molecule, causing it to become excited. The excited atom or molecule may then emit a new photon as it returns to its ground state. If the photon is transmitted, it can continue to propagate through the medium with a reduced speed and a changed direction. If the photon is scattered, it can be deflected in a new direction by an interaction with an atom or molecule in the medium.

The interaction of photons with a medium is responsible for many important phenomena, such as the refraction of light, the absorption of light by materials, and the generation of color. The refractive index of a medium determines how much a photon is refracted or bent when it passes through the medium, and this effect can be used to create lenses and other optical devices. The absorption of photons by a material can lead to photochemistry, photobiology, and photovoltaics, while the scattering of photons can give rise to phenomena such as fluorescence, Raman scattering, and Rayleigh scattering.

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Answer:

2.7 sec / vibrat.

Explanation:

Frequency =  5 cycles / 13.5 sec

Period  = 1/ frequency  = 13.5 sec / 5 cycle

The required vibrational period of the child's swing is 2.7 seconds. The unit for the period is seconds (s).

Vibration is a repetitive motion that occurs around an equilibrium point. When an object vibrates, it oscillates back and forth, up and down, or side to side in a periodic manner. The motion is typically caused by a disturbance or a force applied to the object.

Here,
The vibrational period of a pendulum or swing is the time it takes for one complete back-and-forth vibration. We can find the period (T) of the child's swing using the given information,

Number of vibrations = 5
Time for 5 vibrations = 13.5 seconds

The period (T) of one vibration is equal to the time for 5 vibrations divided by the number of vibrations
T = (Time for 5 vibrations) / (Number of vibrations)
T = 13.5 s / 5
T = 2.7 s

Therefore, the vibrational period of the child's swing is 2.7 seconds. The unit for the period in seconds (s).

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Answer:

4. INTERNATIONAL ASTRONOMICAL UNION

Answer:

6. force is the pull or push which changes or tends to change the (either rest or motion) of a body.

The minimum power of the pump required can be determined by calculating the work done per unit time.

To find the minimum power of the pump, we need to calculate the work done per unit time. The work done is equal to the force exerted multiplied by the distance traveled. In this case, the force can be calculated as the product of the mass flow rate (2.0 kg/s) and the acceleration due to gravity (9.8 m/s^2). The distance traveled is given as 12 m. Multiplying the force and distance will give us the work done per unit time. Finally, the minimum power can be calculated by dividing the work done per unit time by the discharge speed of each drop (3.0 m/s).

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The moment of inertia of the system  for the three situations are 0.026667 kg m2,0.04 kg m2,0.013333 kg .

Four small spheres, each of which you can regard as a point of mass 0.200 kg, are arranged in a square 0.400 m on a side and connected by light rods

a) The moment of inertia of the system about an axis

through the center of the square,

perpendicular to its plane (an axis through point O) is equal to

4 x 0.200 kg x (0.400 m)2/12

= 0.026667 kg m2.

b) The moment of inertia of the system about an axis

bisecting two opposite sides of the square (an axis along the line AB) is equal to

4 x 0.200 kg x (0.400 m)2/8

= 0.04 kg m2.

c) The moment of inertia of the system about an axis

that passes through the centers of the upper left and lower right spheres and

through point O is equal to

2 x 0.200 kg x (0.400 m)2/12

= 0.013333 kg m2.

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Answer:

The answer is E

Explanation:

Wolves died off from the rona virus back in the 1930s so when they came back they brought C- 19 with them

The rocket's velocity is 0.862c relative to the observer.

In this scenario, the rocket is moving at a velocity of 0.862c to the right. The term "c" represents the speed of light, which is approximately 299,792,458 meters per second. To calculate the rocket's velocity, simply multiply 0.862 by the speed of light.

The velocity of the rocket is relative to an observer or a reference frame. This means that the rocket's speed is being measured compared to the position of an observer, which could be a person, a device, or another object. In this case, the rocket is moving at a velocity of 0.862 times the speed of light, which is a significant fraction of the speed of light and would cause relativistic effects, such as time dilation and length contraction, to become noticeable.

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Answer:

The magnetic field.

Explanation:

The magnetic field is the area around a magnet that has magnetic force. All magnets have north and south poles.

Answer:

Explanation: it’s important because it teaches about push an pull and motions, I’m Law 1,2, and 3