action reaction forces are in which one of newtons laws

Answer:

a variable (often denoted by x ) whose variation does not depend on that of another.

Answer:

la instalación insignia de la astronomía terrestre europea a principios del tercer milenio

Explanation:

necesitas poner las cosas en inglés porque hay mucha gente aquí que habla inglés

The temperature of the ball is directly proportional to its bounce height.

This is dealing about the effect of temperature on a bouncing ball.

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Answer:

A. Gamma radiation is an electromagnetic wave.

Explanation:

" Gamma ray is an electromagnetic radiation from a nucleus. It is not safe.

" Nucleus of a helium atom is called Alpha particle.

..

Hope this answer can help you,

Answer:

-2m/s

Explanation:

Answer in attachment

Answer:

a. energy is created as the log burns b. the compounds that make up the log are converted into fire, heat, and energy. c. as the log burns, the nuclear binding energy of the molecules in the log is released. the nuclear binding energy is transformed into the light and heat of the fire. d. the molecules present in the log are transformed into molecules that contain less energy than the original molecules. the energy difference is the heat of the fire?Explanation:

Answer: Juvenile fish go through various stages between birth and adulthood. When they have developed to the point where they are capable of feeding themselves, the fish are called fry. When, in addition, they have developed scales and working fins, the transition to a juvenile fish is complete and it is called a fingerling.

Answer:

Explanation:

The picture is cut off so the wrecking ball and its path are not shown. It would be better if the whole picture is available.

Based on the written info, at the bottom of the path, the wrecking ball is moving at 10m/s.

The centripetal acceleration = velocity^2 / radius

= 10^2 / 25

= 100 / 25

= 4m/s^2

The centripetal force = mass * centripetal acceleration

= 600*4

= 2400N

As the ball is moving horizontally at the bottom, net vertical force is zero.

So Tension force in cable = Wrecking ball weight + Centripetal force

= 600*g + 2400

= 6000 + 2400; assuming g is 10m/s^2

= 8400N

Answer:

I think you don't understand my word because I write in English your writing in Italian

The answer is 0.47 m, which is closest to the option (A) 0.71 m.

First we can use trigonometry. The height of the end of the treadmill raised is the opposite side of the right triangle, and the length of the treadmill is the hypotenuse.

The angle of inclination is the angle between the height and the hypotenuse, so we can use the sine function to find the height:

sin(17°) = opposite/hypotenuse

The length of the treadmill is 1.75 m, so:

opposite = sin(17°) x 1.75 m

opposite = 0.472 m

Therefore, the height of the end of the treadmill raised is approximately 0.47 m.

So the answer is 0.47 m, which is closest to the option (a) 0.71 m.

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Answer:

  large-scale natural disasters

Explanation:

The niceties of civilization are generally unavailable over wide areas when they are affected by ...

Such situations often require rescue workers.

Situations such as:

First, we wonder, who are rescue workers? Basically speaking, a rescue worker is anyone who is trained to bring people out of any harm, danger, or threat that may come their way.

|n such emergency situations, power lines are usually down, and so it may be difficult for them to get the energy needed to power their  electrical devices.

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The uncertainty principle is a fundamental principle of quantum mechanics, which states that the position and momentum of a particle cannot be precisely known simultaneously.

The uncertainty principle is expressed mathematically as Δx Δp ≥ h/4π where Δx is the uncertainty in position, Δp is the uncertainty in momentum, and h is Planck's constant.

In this case, we are given the uncertainty in position of a proton to be Δx = 7.20 × 10⁻⁸ m. We can use the uncertainty principle to find the uncertainty in velocity of the proton as follows:\(Δx Δp ≥ h/4πΔp ≥ h/4πΔxΔp ≥ (6.626 × 10⁻³⁴ J s)/(4π)(7.20 × 10⁻⁸ m)Δp ≥ 5.68 × 10⁻²⁵ kg m/s.\)

This is the uncertainty in momentum of the proton. We can use the definition of momentum p = mv, where m is the mass of the proton and v is its velocity. Solving for \(Δv, we get:Δp = mΔvΔv = Δp/mΔv = (5.68 × 10⁻²⁵ kg m/s)/(1.67 × 10⁻²⁷ kg)Δv = 34,131 m/s\), the uncertainty in velocity of the proton is 34,131 m/s.

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Answer:

7.45 Ω

Explanation:

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

Resistor 1 (R₁) = 2.50 Ω

Resistor 2 (R₂) = 4.95 Ω

Voltage (V) = 12 V

Equivalent Resistance (Rₑq) =?

Since the resistors are in series arrangement, the equivalent resistance can be obtained as follow:

Rₑq = R₁ + R₂

Rₑq = 2.5 + 4.95

Rₑq = 7.45 Ω

Therefore, the equivalent resistance is 7.45 Ω

The standard enthalpy change for the reaction at 25 °C is -102.3 kJ/mol.

To calculate the standard enthalpy change for the given reaction at 25 °C,

The first step is to decompose magnesium hydroxide into magnesium oxide and water:

Mg(OH)2(s) → MgO(s) + H2O(l) ΔH1

The second step is to dissolve magnesium oxide in hydrochloric acid to form magnesium chloride and water:

MgO(s) + 2 HCl(g) → MgCl2(s) + H2O(l) ΔH2

Finally, we can cancel out the common species H2O(l) from both equations and combine the two equations to get the overall reaction:

Mg(OH)2(s) + 2 HCl(g) → MgCl2(s) + 2 H2O(g) ΔH = ΔH1 + ΔH2

The standard enthalpy change for the first reaction (ΔH1) is -37.1 kJ/mol, and for the second reaction (ΔH2) is -65.2 kJ/mol. Therefore, the standard enthalpy change for the overall reaction is:

ΔH = ΔH1 + ΔH2 = (-37.1 kJ/mol) + (-65.2 kJ/mol) = -102.3 kJ/mol

Enthalpy is a thermodynamic property that describes the total energy of a system, including its internal energy, pressure, volume, and other factors. It is often denoted by the letter H and is defined as the sum of a system's internal energy and the product of its pressure and volume.

Enthalpy is a useful property because it provides a way to measure the heat flow into or out of a system at constant pressure. This is because the change in enthalpy during a process is equal to the heat absorbed or released by the system at constant pressure.

Enthalpy is commonly used in chemical thermodynamics to describe the heat changes that occur during chemical reactions. The enthalpy change for a reaction is often referred to as the heat of the reaction and is denoted by ΔH. Positive values of ΔH indicate that a reaction is endothermic, meaning it absorbs heat, while negative values indicate an exothermic reaction that releases heat.

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The energy required to begin nuclear fusion in a protostar comes from: A. the wind from nearby stars.

Atomic nuclei, or the centre of an atom, contain nuclear energy. Electricity production can be done with nuclear energy, but only after it has been liberated from the atom.

Boiling water to create steam, which powers turbines to generate electricity, using nuclear energy is an effective and clean method. Fission—the breaking of uranium in a nuclear reactor—is the method by which low-enriched uranium fuel is used in nuclear power plants to generate energy.

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Answer:

12 volts

Explanation:

4 + 4 + 4 = 12 volts all volts on parallel circuit are the same

The white dwarf that remains when our Sun dies will be mostly made of

(b) carbon is correct option.

A star core remnant known as a white dwarf is primarily made up of electron-degenerate materials. White dwarfs are very dense objects with masses similar to the Sun and volumes similar to the Earth. White dwarfs do not undergo fusion, thus their feeble light is caused by the emission of leftover thermal energy. Sirius B, the smaller half of the Sirius binary star and the closest white dwarf to Earth, is 8.6 light years away. Among the 100 star systems closest to the Sun, eight white dwarfs are currently believed to exist. White dwarfs are unusually faint, and this was first noticed in 1910. Willem Lutyens first used the term "white dwarf" in 1922.

Since stars with very low masses cannot fuse helium, binary systems may experience mass loss that results in the formation of helium white dwarfs. In a white dwarf, the material no longer undergoes fusion processes, depriving the star of its energy source.

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The streamlines equations are \(x^2 - y^2 = c_1\) and \(xy = c_2\), where \(c_1\) and \(c_2\) are constants.

The velocity field is given by,

\(V_x = x (x^2 + y^2)^-^1^/^2\)

\(V_y = y (x^2+ y^2)^-^1^/^2\)

Now, we know that the tangent to a streamline is always parallel to the velocity vector. Hence, for the streamline equations, we must have

\(dx/dy = V_x/V_y\)

Therefore,\((x/y) = V_x/V_y = x/y\)

⇒ \(x^2 - y^2 = c_1\)

or, \((x+y)(x-y) = c_1\)

Hence, the equation of the streamlines are given by \(x^2 - y^2 = c_1\)

Now, for the other streamline equation, let's differentiate both sides of \(V_x\)= constant along the streamline:

\(dx/ds = constant/y\)

And differentiate both sides of \(V_y\) = constant along the streamline:

\(dy/ds = constant/x\)

Multiplying both equations, we get

\(xdx/ds = ydy/ds\)

or,\(xdx = ydy\)

Integrating, we get

\(x^2/2 = y^2/2 + c_2\)

or,\(xy = c_2\)

Thus, the equations of the streamlines are \(x^2 - y^2 = c_1\) and \(xy = c_2\)

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Answer:

A to B is in constant speed. b to c is speeding up. c to d is not moving. d to e is slowing down.

Explanation:

a to b is at a constant rate of acceleration. (It is speed up but it is doing it consistantly) The line is curving upwards means it is speeding up just not consistantly like a to b. c to d is not going up or down which means it is not in motion. d to e is slowing down because the line curvs down ward.

A to B is at a constant pace. b to c is rushing up. c to d isn't always transferring. d to e is slowing down.

The graph on which the immediate position x of a particle is plotted at the y-axis and the time t at the x-axis is known as the location-Time graph.

The precept is that the slope of the road on a position-time graph exhibits beneficial records about the rate of the object. it's miles frequently stated, "because the slope goes, so is going the rate." anything characteristic the speed has, the slope will exhibit the same.

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Answer:

D. Alpha

This is because it's unlikely for it to reach living cells inside the body

The voltage across R2 calculated by taking the difference is 5 V.

We know that the total voltage of a battery is equal to the sum of the voltages across each resistor in a series circuit.

Voltage =Vr1 + Vr2

Voltage = 12 V

Voltage across R1 = 7 V

Therefore,

Voltage across R2 = Voltage - Voltage across R1

Voltage across R2 = 12 V - 7 V = 5 V

It's important to note that in a series circuit, the same current flows through each resistor. Therefore, the voltage across each resistor is inversely proportional to its resistance. In other words, the resistance of R2 is greater than R1, so the voltage across R2 is less than the voltage across R1.

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c) the vapor pressure of a liquid increases with increasing temperature.

Vapor pressure refers to the pressure wielded by the vapor motes in equilibrium with the liquid phase at a given temperature. As temperature rises, the kinetic energy of the liquid motes increases, leading to further frequent and energetic collisions. These collisions give the necessary energy for some of the liquid motes to overcome intermolecular forces and escape into the vapor phase.

thus, as temperature increases, the average kinetic energy of the liquid motes increases, performing in increased vapor pressure. This relationship is described by the Clausius- Clapeyron equation, which demonstrates that vapor pressure tends to rise exponentially with temperature for utmost liquids.

On the other hand, surface tension (option a) and viscosity (option b) generally decrease with increasing temperature. Higher temperatures lead to increased molecular motion, reducing the cohesive forces responsible for surface tension and allowing molecules to move more freely, resulting in lower viscosity.

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Since all three cars have the same final velocity, the one with the greatest mass, which is car X, will have the most amount of momentum after 10 seconds.

The amount of momentum each car has after 10 seconds will depend on both its mass and its velocity. Since all three cars experience the same net accelerating force, they will all have the same acceleration. However, because car X is more massive than car Y, which is more massive than car Z, it will take more force to accelerate car X to the same acceleration as car Y and car Z.

Therefore, after 10 seconds, all three cars will have the same final velocity (assuming they all started from rest), but car X will have a greater amount of momentum than car Y and car Z because of its greater mass.

The formula for momentum is:

momentum = mass x velocity. Since all three cars have the same final velocity, the one with the greatest mass, which is car X, will have the most amount of momentum after 10 seconds.

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If the frequency of wave 'a' is one-third of that of wave 'b', then the time period of wave a will be three times as compared to the time period of wave 'b'

The frequency of a wave is inversely proportional to its time period, and it is defined as the number of oscillations per second.

which means F ∝ 1/T

If we remove the proportionality we will need to add a constant.

which makes the relation F = k/T

Time period is defined as the total time taken by a wave to complete one oscillation.

Now as per the data we have,

let the frequency of wave b be 'F', and the time period of b be 'T'

\(F_{a}\) = F/3 and \(T_{a}\) = T/3

Arranging the data into the formula we get

\(\frac{F_{a}}{F_{b}} = \frac{T_{b}}{T_{a}}\)

Which gives us \(T_{b}\) = 3\(T_{a}\)

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Answer:

A.) The particles that make up material A have more mass than the

particles that make up material B.

HOPE that helps!!! :)

The element (A) F (fluorine) doesn't have similar chemical properties to neon (Ne).

The noble gases comprise a group of the periodic table, consisting of six chemical elements: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The noble gases are the chemical elements that are the least reactive.

They are the lightest and have the smallest atomic radii of any element in their respective periods. Their non-reactivity makes them very useful in a wide range of applications. They are used in lighting, cryogenics, as pressurized gases for spacecraft propulsion, and in the semiconductor industry. The noble gases are located in the last column of the periodic table. The number of electrons in their outermost shell (the valence shell) is the same as the group number.

For example, helium and neon have two valence electrons, and argon has eight. Fluorine, represented by F on the periodic table, is a chemical element with the atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As a member of the halogen group, it is a highly reactive element. Therefore, the option (A) F (fluorine) is not a noble gas and doesn't have similar chemical properties to neon (Ne).

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The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

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