It took the bike messenger 36 minutes to ride from the school to
the blue house. If they are 2160 meters apart, what was the
messenger's velocity?
a. 1.2 m/s
b. 1 m/s south
c. 2 m/s south
d. 1.2 m/s south

The correct answer is A. mortise lock. This type of lock is designed to be installed within a rectangular cavity that is carved into the edge of a door stile.

The latching mechanism of the mortise lock is completely concealed within the cavity, providing a sleek and unobtrusive appearance. Mortise locks are known for their durability and security, making them a popular choice for residential and commercial applications.It requires two components, a lock body and a strike plate, and is typically used in pairs. The lock body is typically installed into the edge of the door and the strike plate is installed into the doorjamb. The two components are then connected with a key and the door is locked and unlocked by turning the key. Mortise locks are more secure and offer more durability than other types of locks, such as cylinder locks.

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Mauna kea is taller than mountain everest.

To determine which mountain is taller, first we need to compare the height of the two mountains as shown below.

Total height of mauna kea = height above sea level + height above sea level

Total height of mauna kea =  4,200 meters + 6,000 meters

Total height of mauna kea = 10,200 meters

Thus, when we compare the total height of mauna kea to that of mountain everst, we will notice that mauna kea is taller.

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Answer:

The answer is 39.3

Explanation:

Answer:

A.

Explanation:

B,C,D is not right because those do not pay a factor on kinectic energy

Answer:

product

Explanation: it's the product of chlorine and sodium

Answer:

y

Explanation:

Both stars A and B will have the same brightness to the earth because luminosity is dependent on the temperature and size where A is hotter but smaller and B is bigger but colder.

There are several factors that determine the luminosity of a star namely, the size, temperature, distance and magnitude. The two main factors that determine luminosity of a star when the distance is the same are temperature and size.

When the temperature of a Star is higher than the other with equal distance from the earth the star is brighter than that with lower temperature. Also, when the size of a star is bigger, it possesses a higher surface area to absorb light and energy. This makes A and B as bright as the other.

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Therefore, in the equation above, the mass of the object mo must be multiplied by the composite constant (Gme/r2e), which has a value of 9.7196 m/s2.

In physics, mass is a quantitative measurement of inertia, a basic characteristic of all matter. It essentially refers to a body of matter's resistance to changing its speed or location in response to the force applied. The change caused by an applied force is smaller the more mass a body has.

For this particular issue, the solution were as follows:

(G Me Mo) / Re2 = F

(G Me) / Re2 = F / Mo

G is equal to 6.67384 * 10-11 m3 kg-1 s-2, or gravitational constant.

Me = 5.972 * 10^24 kg

Re^2 ≈ (6.38 * 10^6)^2 m^2 ≈ 40.7044 * 10^12 architects = 4.07044 * 10^fourteen m^2

G Me/Re2 = (6.67384*10-11*5.972*1024)/(4.0704*1013) = 9.7196 m/s2.

Gravitational acceleration is 9.7196 m/s2.

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The correct answer is C: (∂U/∂T)V(∂T/∂V)U(∂V/∂U)T = -1 CV = (∂U/∂T)V = -1(∂T/∂V)U(∂V/∂U)T = -(∂V/∂T)U(∂U/∂V)T. The equation CV = −(∂U/∂V)T(∂V/∂T)U can be derived from the thermodynamic relation:

dU = TdS - PdV

Taking the partial derivative with respect to V at constant T, we get:

(∂U/∂V)T = -P

Using the ideal gas law, PV = nRT, we can write:

P = (nRT/V)

Substituting this into the equation for (∂U/∂V)T, we get:

(∂U/∂V)T = -(nRT/V)

Next, we take the partial derivative of V with respect to T at constant U:

(∂V/∂T)U = (∂(∂U/∂T)V/∂P)V

Using the Maxwell relation (∂T/∂V)U = - (∂P/∂U)V, we get:

(∂V/∂T)U = - (∂(∂U/∂V)T/∂U)V

Substituting the expression for (∂U/∂V)T, we get:

(∂V/∂T)U = (nR/V) * (∂V/∂U)T

Substituting both expressions back into the equation for CV, we get:

CV = -((∂U/∂V)T) * ((∂V/∂T)U)

CV = -(-(nRT/V)) * ((nR/V) * (∂V/∂U)T)

CV = (nR/V^2) * (∂V/∂U)T

Finally, we use the chain rule to express (∂V/∂U)T in terms of partial derivatives of U and T:

(∂V/∂U)T = (∂V/∂T)U * (∂T/∂U)V

Substituting this expression back into the equation for CV, we get:

CV = -(∂U/∂V)T * (∂V/∂T)U

CV = -(∂U/∂V)T * (∂T/∂U)V * (∂V/∂T)U

CV = -(∂U/∂T)V * (∂T/∂V)U * (∂V/∂U)T

Therefore, the correct answer is C: (∂U/∂T)V(∂T/∂V)U(∂V/∂U)T = -1 CV = (∂U/∂T)V = -1(∂T/∂V)U(∂V/∂U)T = -(∂V/∂T)U(∂U/∂V)T.

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Phytoplankton are tiny plant-like organisms that float in the upper layer of the ocean and are the foundation of the marine food web. These organisms are important because they produce nearly half of the oxygen we breathe and absorb carbon dioxide from the atmosphere, helping to regulate the Earth's climate.

In the tropical oceans, the major limiting factor to phytoplankton production is the availability of nutrients. Specifically, the lack of iron, nitrogen, and phosphorus limits the growth of phytoplankton. These nutrients are essential for the production of chlorophyll, which is responsible for photosynthesis. Without enough nutrients, the growth and reproduction of phytoplankton are limited, which in turn limits the productivity of the entire marine ecosystem.
The availability of these nutrients in tropical oceans is affected by several factors. One factor is upwelling, where deep, nutrient-rich waters are brought to the surface by currents. Another factor is dust deposition, where dust containing iron and other nutrients is carried by winds from land and deposited in the ocean.

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The mass of the second box car from the calculation is  22317 Kg.

We have to note that we can be able to obtain the momentum as the product of the mass and the velocity of the object that is to be studied. In the case of the cars that we have here;

The momentum before Collison = Momentum after collision

We would then have from the question;

(10300 * 19) + (M * 0) = (10300 + M) * 6

Let the mass of the second box car be M

Then;

195700 = 61800 + 6M

M = 22317 Kg

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Answer:

Explanation:

2) From F=ma

Force =15×40=600N or kgm/s2

3)From the same equation making acceleration the subject of the formula will give

a=f÷m

=24÷4=6m/s2

4)m=f÷a

=45÷15=3kg

Answer:

D. water

Explanation:

sugar ( glucose ) and oxygen are bi-products

Answer:

(d) water

Explanation:

water is required for photosynthesis to take place .

sugar , oxygen , ATP are not required to take place in photosynthesis.

work done = f.d cos x = 300* 400* cos 70 = 41040 J

Work done by the vertical component. = 281.9 x 400x cos 70 = 38563.9 J

Work done by horizontal component = 102.6 x 400x cos 70

 = 14035.68 J

The force and its displacement are 300N and 400m lalong the

direction of 70° horizontal.

work done = f.d cos x = 300* 400* cos 70 = 41040 J.

Work done by horizontal component = horizontal force x d cos x

horizontal force = 300 x cos 70 =300 x .342 = 102.6 N

Work done by horizontal component = 102.6 x 400x cos 70

 = 14035.68 J

force  by the vertical component. = 300x sin 70 =300x .939

= 281.9 N

Work done by the vertical component. = 281.9 x 400x cos 70 = 38563.9J

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Answer:

Orbital velocity of earth is 2.89 × 10⁵ m/s

Explanation:

Answer:

need Read this excerpt from "Not a Dove, But No Longer a Hawk."

Despite these misgivings, I do not see how we can do anything but continue to prosecute the war. We can and should limit the violence and the suffering being inflicted on the civilians as much as possible, but for whatever reasons, successive Administrations in Washington have carried the commitment in Vietnam to the point where it would be very difficult to prevent any precipitate retreat from degenerating into a rout. If the United States were to disengage from Vietnam under adverse conditions, I believe that the resulting political and psychological shockwaves might undermine our entire position in Southeast Asia.

Which statement best describes the paradox in this excerpt?

The author acknowledges that civilians should not suffer, but states that the civilians must retreat.

The author suggests that the administrators in Washington are busy making policies while overlooking the need to end the war.

The author acknowledges that the violence should stop, but admits that a retreat might have dire consequences.

The author suggests that the Vietnamese people are counting on US support, though their political ideals are not democratic.

Explanation:

Answer: Which of these statements is most likely correct about the stars?

Star 2 attracts Star 1 with a greater gravitational force than Star 1 attracts Star 2.

No, because Third Newton Law states that both forces are equal in magnitude.

Earth exerts almost equal gravitation force on both the stars.

No, because the Universal Gravitational Law, estblished by Newton, states the atraction force to two masses is proportional to the product of the masses.

Star 1 attracts Star 2 with a greater gravitational force than Star 2 attracts Star 1.

No (same reason for the first statement)

Earth exerts greater gravitation force on Star 2 than on Star 1.

Right. This is the correct statement. Given the mass of Star 2 is greater than the mass of Star 1, by the Universal Gravitational Law, the earth exerts greater gravitational attraction on Star 2.

Explanation:

:)

The hydrogen atom emission spectra provide information about the specific wavelengths or colors of light emitted when electrons transition between energy levels.

The Rydberg plot, based on the Rydberg formula, is a graphical representation of these spectral lines and helps determine the relationship between the energy levels and the observed wavelengths or frequencies.

The hydrogen atom emission spectra and the Rydberg plot are both important concepts in atomic physics that describe the behavior of the hydrogen atom and the relationship between the energy levels of its electrons.

The hydrogen atom emission spectra refers to the pattern of light emitted when the electrons in a hydrogen atom transition between different energy levels. When an electron moves from a higher energy level to a lower energy level, it releases energy in the form of photons of specific wavelengths or colors. These emitted photons create a characteristic set of spectral lines in the electromagnetic spectrum.

The spectral lines observed in the hydrogen atom emission spectra are classified into different series: the Lyman, Balmer, Paschen, Brackett, and Pfund series. Each series represents a specific range of wavelengths or energy transitions. The Balmer series, for example, includes the visible spectral lines and is commonly observed in laboratory experiments.

The Rydberg plot, named after the Swedish physicist Johannes Rydberg, is a graphical representation of the wavelengths or frequencies of the spectral lines in the hydrogen atom emission spectra. The Rydberg formula provides a mathematical relationship between the wavelengths/frequencies of the spectral lines and the energy levels of the hydrogen atom:

1/λ = \(R_H * (1/n_1^2 - 1/n_2^2)\)

where λ is the wavelength of the emitted light, R_H is the Rydberg constant for hydrogen (approximately 1.097 × \(10^7\) m⁻¹), and n1 and n2 are positive integers representing the initial and final energy levels, respectively.

By plotting the reciprocals of the observed wavelengths or frequencies against the corresponding energy level transitions, the Rydberg plot can be obtained. The Rydberg plot allows scientists to determine the Rydberg constant and study the energy structure of the hydrogen atom.

In summary, the hydrogen atom emission spectra provide information about the specific wavelengths or colors of light emitted when electrons transition between energy levels. The Rydberg plot, based on the Rydberg formula, is a graphical representation of these spectral lines and helps determine the relationship between the energy levels and the observed wavelengths or frequencies.

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Answer:

According to the only context given, the correct answer is induction.

Explanation:

La electricidad fue uno de los mayores inventos tecnológicos y científicos del mundo que permitió una gran evolución de la sociedad.

Es a través de la electricidad que podemos realizar tareas que parecen tan habituales en la actualidad, como usar luz eléctrica, usar internet, conservar alimentos, tomar baños calientes, y otras tareas que forman parte de la rutina diaria de miles de personas alrededor del mundo. mundo.

Por tanto, es importante observar en un contexto general cómo la electricidad ha traído beneficios a la humanidad, como la conservación de los alimentos por ejemplo, que ha facilitado la vida cotidiana.

En el entorno empresarial, la electricidad posibilitó la creación de máquinas, la automatización del trabajo, lo que facilita las funciones de los empleados, aumenta la seguridad de la empresa, permite el crecimiento empresarial y la aparición de muchos productos y servicios que existen en la economía actual.

En medicina ayudó en el tratamiento de enfermedades, en la creación de medicamentos, etc.

En la sociedad, la electricidad hace posible el saneamiento, permite una mejor calidad de vida para las personas, un mayor intercambio de información y varios otros desarrollos que tienen un impacto directo en la vida de cualquier persona.

The average acceleration of the egg while falling can be calculated using the equation a = (v - u)/t, where v is the final velocity, u is the initial velocity and t is time.

a) A = (11.0 m/s) / (1.12 s) = 9.82 m/s^2

b) A = (0 m/s) / (0.131 s) = 0 m/s^2

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Explanation:

1500 - 1200 =  300

Answer is 300

Answer:

Total energy=Kinetic energy+Potential energy

Explanation:

the total energy will be obtained from the energy of an object in motion and the energy stored in the object

Answer:

Total energy = Kinetic energy + potential energy

Explanation

Answer:

100

Explanation:

The true statement is Surface waves typically have the largest amplitude.(C)

Seismic waves are classified into two types: body waves and surface waves. Body waves include P-waves (primary or compressional waves) and S-waves (secondary or shear waves). These waves travel through the Earth's interior.

On the other hand, surface waves travel along the Earth's surface and generally have larger amplitudes than body waves. As a result, they cause more damage during earthquakes. Options a, b, and d are incorrect because they either misclassify the waves or provide inaccurate information about their arrival time on a seismogram.(C)

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When a pulse encounters a fixed point, such as a wall or a rigid boundary, it undergoes reflection. Reflection occurs when the pulse bounces back upon reaching the fixed point.

During reflection, the pulse experiences a change in direction but retains its original shape and properties. The incident pulse approaches the fixed point and interacts with it. As a result, an equal and opposite pulse is generated and travels back in the opposite direction.

The behavior of the reflected pulse depends on the nature of the incident pulse and the properties of the medium it travels through. If the pulse is inverted (upside-down) before reflection, the reflected pulse will also be inverted. Similarly, if the incident pulse is right-side-up, the reflected pulse will maintain the same orientation.

The reflection process follows the law of reflection, which states that the angle of incidence (the angle between the incident pulse and the normal to the fixed point) is equal to the angle of reflection (the angle between the reflected pulse and the normal). This law ensures that energy and momentum are conserved during the reflection process.

In conclusion, when a pulse encounters a fixed point, it undergoes reflection, resulting in the generation of an equal and opposite pulse traveling in the opposite direction. The reflected pulse retains the same shape and properties as the incident pulse, following the law of reflection.

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Answer:

Explanation:

The average speed of the car can be found by using the formula

\(v = \frac{d}{t } \\ \)

d is the distance

t is the time taken

From the question we have

\(v = \frac{139.2}{3.8} \\ = 36.63157...\)

We have the final answer as

Hope this helps you

Answer:

The first and third one

Explanation:

The roughness of the surfaces is very important when determining friction as well as the force pressed on a surfaces as it helps increase friction.

HOPE IT HELPED

Answer:

That they must die

Explanation:

Stick = Die