A reaction occurs in which carbon combines with oxygen to form carbon dioxide is this a chemical reaction or nuclear reaction

The Doppler technique can be used to estimate the semimajor axis of a planet's orbit by measuring the speed at which the star orbits the mutual center-of-mass of the star and planet, and using Newton's theory of gravity.

The Doppler technique, also known as the radial velocity method, is a common method for detecting exoplanets by measuring the slight wobble of a star caused by the gravitational pull of an orbiting planet. This wobble induces shifts in the star's spectral lines, which can be detected as changes in the star's line-of-sight velocity. By observing these velocity changes, astronomers can determine the speed at which the star is moving toward or away from us. This velocity change is directly related to the mass and orbital properties of the planet, including the semimajor axis of its orbit. Newton's theory of gravity provides the necessary mathematical framework to relate the observed velocity changes to the orbital parameters of the planet. By analyzing the pattern of the star's line-of-sight velocity changes over time, astronomers can estimate the semimajor axis of the planet's orbit, which represents the average distance between the planet and its host star. This information is crucial for understanding the orbital dynamics and characteristics of exoplanetary systems.

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Answer:

76

Explanation:

The speed is 76 miles per hour your welcome!!

Explanation:

According to Faraday's law of electromagnetic induction, a changing magnetic field induces an electric current in a conductor.

In this case, as the magnet moves away from the metal ring, the magnetic field through the ring decreases, inducing a current in the ring. The direction of the induced current can be determined by Lenz's law, which states that the current flows in a direction to oppose the change that produced it. Therefore, the induced current will create a magnetic field that opposes the motion of the magnet and will flow in a direction such that its magnetic field is in the opposite direction to that of the magnet.

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Complete question :

A flight attendant pulls her 70 N flight bag a distance of 318 m along a level airport floor at a constant velocity. The force she exerts is 41 N at an angle of 57° above the horizontal.

(a) Find the work she does on the flight bag.

(b) Find the work done by the force of friction on the flight bag.

(c) Find the coefficient of kinetic friction between the flight bag and the floor.

Answer:

7107 J ; - 7107 J ; 0.55

Explanation:

Given that :

Distance, d = 318m

Applied force = 41 N

θ = 57°

A.) Workdone = Force exerted along direction of motion

Workdone = applied Force * distance * cosθ

Workdone = 41 * 318 * cos57 = 7101.0037

Workdone = 7,101 J

B.) Workdone by force of friction on flight bag:

- 7,101 J (since the body moves at constant velocity)

C.)

Coefficient of kinetic friction (μ) = Frictional force / normal reaction)

μ = F / N

Frictional force, F = Workdone by friction / distance

F = 6200 / 318

F = 19.47N ;

Ff = weight of Flight bag = 70 N

N = Ff - Fsinθ

N = 70 - applied Force sinθ

N = 70 - 41sin57

N = 70 - 34.385493

N = 35.614506

μ = 19.47 / 35.614506

μ = 0.5466873

a) Acceleration is calculated as 29.54 m/s^2

b) Time required to stop is calculated as 2.27 seconds

The rate of change of the velocity of an object with respect to time is called as acceleration and it is a  vector quantity. Acceleration is the rate at which velocity changes with time in terms of both speed and direction. An object moving in a straight line is accelerated if it's speed goes up or down.

Given, speed = 150 mph

1mph = 0.447 m/s

150mph = 67.056 m/s

and distance = 500 ft

1ft = 0.30 m

500 ft= 152.4 m

time=  distance / speed

= 152.4/ 67.056

=  2.27 sec

Acceleration= velocity/ time

= 67.056/2.27

Acceleration = 29.54 m/s^2

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Answer:

get some

get some ⛽⛽⛽⛽⛽

pour the ⛽ on the module,

get that on itttttt and booooooommmm

Explanation:

Based on the circled elements in the periodic table’s location, we could infer that most of the circled elements are gases at room temperature. The correct answer is B.

There are 11 elements that are in gaseous state at room temperature. They are Hydrogen (H), Helium (He), Neon (N), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), Fluorine (F), Chlorine (Cl), Nitrogen (N) and Oxygen (O).

Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and also are found as diatomic molecules (H2, N2, O2, F2, Cl2).

Although part of your question is missing, you might be referring to this full question: Consider the circled elements in the periodic table as seen on attached image. Based on their location, we could infer that most of them are:

A) very reactive gases.

B) gases at room temperature.

C) do not react readily with metals.

D) nonreactive solids at room temperature.

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Answer:

Energy cannot be created or destroyed

The total amount of energy remains the same even though it may change forms. The amount of energy before and after any energy transformations remain the same because energy cannot be created or destroyed.

Explanation:

Gauge pressure is the pressure measured relative to atmospheric pressure. A commonly used instrument for measuring gauge pressure is the pressure gauge.

A pressure gauge typically consists of a circular dial with a pointer, a pressure sensing element, and a scale. The sensing element, which is usually a diaphragm or a Bourdon tube, is connected to the system or container whose pressure is being measured.

The pressure gauge is usually connected to the system or container through an inlet port. When the pressure in the system or container changes, it exerts a force on the sensing element of the pressure gauge. This force causes the sensing element to deform, which in turn moves the pointer on the dial. The position of the pointer on the pressure scale indicates the gauge pressure.

The pressure scale on the dial is calibrated in units such as psi (pounds per square inch), bar, or kPa (kilopascals), depending on the application and region. The scale allows the user to directly read the gauge pressure value.

It's important to note that the pressure gauge measures the difference between the pressure being measured and the atmospheric pressure. If the system or container is under vacuum (pressure lower than atmospheric pressure), the gauge will indicate negative values.

Pressure gauges are widely used in various industries and applications where monitoring and control of pressure is essential, such as in industrial processes, HVAC systems, pneumatic systems, and hydraulic systems.

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Answer:

C

Explanation:

Utrd5r7dt7ftf6d7tf6t756565t5tf5r55r755

Answer:

NO

Explanation:

I=mr^2 this means moment inertia depends upon mass and square of radius or distance.

The average power developed by the boy during the climb is approximately 29.4 W.

In physics, the amount of energy transferred or converted per unit time is called power.

total height = number of steps x height of each step

total height = 30 x 0.15 m = 4.5 m

Given, time = 60 s

As power = work done / time

work done = force x distance

force = mass x gravity

mass is boy's mass (40 kg) and gravity is acceleration due to gravity (9.81 m/s²).

force = 40 kg x 9.81 m/s² = 392.4 N

The distance that the boy moves is equal to the total height that he has climbed: distance = total height = 4.5 m

work done = force x distance

work done = 392.4 N x 4.5 m = 1765.8 J

power = work done / time

power = 1765.8 J / 60 s

power ≈ 29.4 W

Therefore, the average power developed by the boy during the climb is approximately 29.4 W.

As for the anomalous behavior of water, water has a higher boiling point and melting point as compared to other substances with similar molecular weight. This is due to the strong hydrogen bonding between water molecules, which requires more energy to break the bonds and change the state of water from solid to liquid to gas.

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Answer:

A pair of scales

Explanation:

The heat capacity of a two-dimensional Bose gas is identical to that of a two-dimensional Fermi gas. The energy of a two-dimensional Bose gas is given by\($E = ∑kζ(2)kT^2/λ^2$\), where ζ(2) = π2/6.

Because in two dimensions, the density of states is proportional to \($k$\), the heat capacity of the Bose gas is given by

\($C_V = ∂E/∂T = ζ(2)k/λ^2$.\)For a Fermi gas, the heat capacity is given by \($C_V = πk^2T/3h$\), where h is Planck's constant. Because the density of states is proportional to \($k$\) in two dimensions, the expression for the heat capacity is identical to that of a Bose gas. Thus, the heat capacity of a two-dimensional Bose gas is identical to that of a two-dimensional Fermi gas.

b) The Bose-Einstein condensation temperature in two dimensions is zero, and the Bose gas does not condense. Bose-Einstein condensation in two dimensions is prevented by the Mermin-Wagner theorem, which states that continuous symmetries cannot be broken in two dimensions. The continuous symmetry that is broken in Bose-Einstein condensation is the gauge symmetry. In two dimensions, this symmetry cannot be broken, and therefore Bose-Einstein condensation is impossible.

In conclusion, it is shown that the heat capacity of a two-dimensional Bose gas is identical to that of a two-dimensional Fermi gas and that a Bose ideal gas exhibits no condensation in two dimensions.

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Answer:

43740 N and attractive force

Explanation:

Given that,

Charge 1, q₁ = -54.0 μC

Charge 2, q₂ = +36.0 μC

The distance between charges, r = 2 cm = 0.02 m

We need to find the force between charges. The formula for the force between charges is given by :

\(F=k\dfrac{q_1q_2}{r^2}\)

Put all the values,

\(F=9\times 10^9\times \dfrac{54\times 10^{-6}\times 36\times 10^{-6}}{(0.02)^2}\\\\F=43740\ N\)

As the charges are opposite, the force between them is attractive. Hence, the required force is 43740 N.

The ball remains in the air for approximately 3.44 seconds.

When a ball is tossed upwards with an initial velocity (v₀) of 33.8 m/s and experiences an acceleration due to gravity (g) of -9.81 m/s², we can calculate its maximum height using the formula:

\(\[ y = \frac{{v₀²}}{{2g}} \]\)

Substituting the given values:

\(\[ y = \frac{{33.8²}}{{2 \times 9.81}} = 58.09 \text{ meters} \]\)

Hence, the maximum height reached by the ball is 58.09 meters.

To determine the time the ball stays in the air, we can utilize the following equation:

\(\[ v = u + gt \]\)

Where v represents the final velocity, u is the initial velocity, g is the acceleration due to gravity, and t denotes the time taken for the ball to reach the maximum height.

In this scenario, the initial velocity (u) is 33.8 m/s, the acceleration due to gravity (g) is -9.81 m/s², and the final velocity (v) is 0 m/s. Therefore, we have:

\(\[ 0 = 33.8 + (-9.81)t \]\)

Solving for t:

\(\[ t = 3.44 \text{ seconds} \]\)

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Answer:

a

Explanation:

condensation

the other ones just don't go

The change of state as depicted by the model is condensation.

The process by which the water vapors get converted into liquid droplets to get settled on a cold surface is known as condensation.

As per the given problem, the cylinder in the left has the balls evenly spaced throughout and the right cylinder has the balls in the form of layers at its bottom.

So, this clearly reflects that the comparing both the balls in both cylinders, the right cylinder consists of the balls undergone through the process of condensation.

This is because,

During condensation, the vapor molecules get converted into liquid.

And in the left cylinder, the balls evenly spaced have more intermolecular distance which designates the gaseous molecules.

While in the right cylinder, the layered form of gas shows that the conversion occurred to some state of molecules, having less intermolecular space.

And liquid has less intermolecular space than gas.

Thus, we can conclude that the change of state as depicted by the model is condensation.

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Answer:

Explanation:

let's find the acceleration

\(v = u + at \\ 8 = 0 \times a \times 2.5 \\ \alpha = 3.2m {s}^{ - 2} \)

then distance

\( {v}^{2} = {u}^{2} + 2as \\ {8}^{2} = 2 \times 3.2 \times s \\ \\ s = 10m \)

The final speed after the collision of the blocks is 5u/4. The final speed is given in terms of initial velocity.

Given:

Mass of the first block, m

Mass of the second block, 3 m

The initial velocity of the first block, 2u

The initial velocity of the second block, u

The momentum can be determined from the product of mass and velocity.

From the conservation of momentum:
initial momentum = final momentum

2mu + 3mu = (3 m+m) v

The final speed is:
5mu = 4mv

v = 5u/4

Hence, the final speed after the collision of the blocks is 5u/4. The final speed is given in terms of the initial speed.

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#Complete question is:

shows two blocks sliding on a frictionless surface. eventually, the smaller block overtakes the larger one, collides with it, and sticks. suppose that m

What is the speed of the two blocks after the collision?

Answer:

\(a=-5.67\ m/s^2\)

Explanation:

Given that,

Initial velocity, u = -5 m/s

Final velocity, v = -22 m/s

Time, t = 3s

We need to find the acceleration of the car. The formula of it is given by :

Acceleration,

\(a=\dfrac{v-u}{t}\\\\a=\dfrac{(-22)-(-5)}{3}\\\\a=-5.67\ m/s^2\)

So, the acceleration of the car is \(-5.67\ m/s^2\).

Answer:

It change because its and cold

Conclusion statement defines the answer of a scientific problem based on the result of the experiment.

A scientific problem is solved by the scientific methods. A scientific method is the step-by-step approach to a conclusion of the problem. It may include the following steps.

Observation: It is the first step of the method. It is based on that how do you see the problem.

Hypothesis: It is the result you think that you will get.

Prediction: It is based on your scientific knowledge. If our hypothesis is correct than our prediction will also be true.

Experiment: It is the system or mechanism designed by you to test your hypothesis.

Conclusion: It is the final result based on the experiment of the method. This statement tells you whether your hypothesis is true or not.

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Answer:

Because there is no gravity determining where you are.

Explanation:

I hope this helps

have a good day :)

Answer:

Please find attached the plot of distance against time created with Microsoft Excel

Explanation:

The table of the information about the train journey is presented here as follows;

\(\begin{array}{ccc}Station&Distance \ travelled/\,km&Time \taken \, / \, minutes \\Ayton&0&0\\Beeston&20&30\\Seatown&28&45\\Deeville&36&60\\Eton&44&70\end{array}\)

From the table data, the distance against time plot can be created by entering the data into a spreadsheet such as Microsoft Excel, then selecting a Chart option in the Ribbon under the Insert Menu after selecting the data

Answer: A is the correct answer :)

Explanation:

The merry-go-round takes approximately 29.41 seconds to complete 2.00 rotations.

Given data:

Acceleration (α) = 0.135 rad/\(s^2\)

Number of rotations (θ) = 2.00

To find the time taken (t) for 2.00 rotations, we need to use the formula:

θ = 0.5 * α * \(t^2\)

Rearranging the formula, we get:

\(t^2\) = (2 * θ) / α

Plugging in the given values, we have:

\(t^2\) = (2 * 2.00) / 0.135

\(t^2\) = 29.63

Taking the square root of both sides, we find:

t ≈ √29.63

t ≈ 5.439

Therefore, the time taken for the merry-go-round to complete 2.00 rotations is approximately 5.439 seconds.

Note: It's important to round the final answer to an appropriate number of significant figures, considering the given data. In this case, we have used four significant figures in the final answer.

However, if we want to adhere to the given significant figures in the acceleration (0.135 rad/\(s^2\)), the answer should be rounded to three significant figures. In that case, the final answer would be approximately 5.44 seconds.

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