Ignacio shares 2.1 liters of water equally into 7 containers. How many milliliters are in each container?(A) 0.3 milliliters(B) 300 milliliters(C) 2,100 milliliters(D) 14,700 milliliters

Answer:

a is the correct answer

from the formula of wave length=v/f

therefore f= v/wave length

these implies f= 345/4.15 = 83.1hertz

The rms speed of a molecule in Mars's atmosphere is 345 m/s.

Mars has an atmosphere composed almost entirely of carbon dioxide, with an average temperature of -63 ∘C.

We know that rms speed of a molecule is denoted by:\(V_{rms} = \sqrt{3RT/M}\)  

Where, R = 8.315 J/mol. K

            T =temperature=-63°C = 210K

            M=molar mass (in kg/mol)

Here, Carbon dioxide is present, so M= \(44*10^{-3} kg/mol\)

Now putting the given values in above equation we get \(V_{rms}\)= 345 m/s.

i.e. The rms speed of a molecule in Mars's atmosphere is 345 m/s.

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Answer:

20654 N

Explanation:

Applying

F = kqq'/r²........... equation 1

Where F = Force between the charge, q = First charge, q' = second charge, r = distance betweeen the charge, k = coulomb's constant.

From the question,

Given: q = -0.0004 C, q' = 0.00092 C, r = 0.4 m

Constanr: k = 8.98×10⁹ Nm²/C²

Substitute these values into equation 1

F = ( -0.0004×0.00092×8.98×10⁹)/(0.4²)

F = (3.30464×10³)/0.16

F = (3304.64)/0.16

F = 20654 N

Hence the force between the charges is 20654 N

Answer:

Explanation:

In this problem we are required to find the potential energy possessed by the television

Given data

mass of television m = 15 kg

height  added above the ground, h= 1-0.3 = 0.7 m

acceleration due to gravity g = 9.81 m/s^2

apply the formula for potential energy we have

P.E= m*g*h

P.E = 15*9.81*0.7 = 103 Joules

Answer:

a = (v2 - v1) / t

At 4 sec the slope of the line (Δv / Δt) = (4 - (-2)) m/s /  1.5 sec

a = 4 m/sec^2

(2

The total energy that can be stored in the spring bumpers is 43.8 J, or KE = 43.8.

The battery's power capacity is the amount of energy it can hold. Its power is commonly stated in Watt-hours (the symbol Wh) (the symbol Wh). A Watt-hour is equal to the voltage (V) and current (Amps) that a battery can produce for a specific period of time (generally in hours). Voltage * Amps * hours = Wh.

Block A's momentum before to the impact can be calculated using the formula p1 = m1v1 = (3.50 kg)(9.00 m/s) = 31.5 kgm/s.

Block B's initial momentum is p2 = m2v2 = 0, indicating that it is at rest.

Prior to the collision, the system's total momentum was equal to 31.5 kgm/p1 + p2.

\(p1 + p2 = (m1 + m2)v\)

\(31.5 kgm/s = (3.50 kg + 10.00 kg) * v\)

\(31.5 kgm/s = 13.50 kg * v\)

\(v = 31.5 kg*m/s / 13.50 kg = 2.33 m/s\)

The kinetic energy of block A before the collision is given by KE1 = (\(1/2)m1v1^2 = (1/2)(3.50 kg)(9.00 m/s)^2 = 141.8\) J

The kinetic energy of block B before the collision is KE2 = \((1/2)m2v2^2 = 0\)

The total kinetic energy before the collision is KE1 + KE2 = 141.8 J

\(ΔKE = KEf - KEi = (1/2)(m1 + m2)v^2 - KE1 - KE2\)

\(ΔKE = (1/2)(3.50 kg + 10.00 kg)(2.33 m/s)^2 - 141.8 J - 0\)

ΔKE = 43.8 J\(31.5 kgm/s = 13.50 kg * v\)

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I think its a secret!!

Answer:

uhh, uhh i think it's a carrot?

nah a secret

Explanation:

Answer:

D.

Explanation:

I think its D. because Tea during a cold workout isnt safe at all. Drinking tea while working out adds weight and you just simply dont need tea when working out.. Hope this helps man :)

C. You shouldn't exercise while drinking hot tea because you can spill it and burn yourself especially while on a treadmill.

If this helped please mark me as brainliest!

\(\left[\begin{array}{ccc}Thanks,\\JustSomeIdiot\end{array}\right]\)

Racial Formations essay reading, race is defined as a socio historical concept.

According to the authors of the "Racial Formations" essay, race is a socio-historical concept that is constantly being constructed and reconstructed by society. This means that race is not a fixed biological category but a product of social, cultural, and historical processes that shape our understanding and interpretation of human differences. The authors argue that the concept of race is not based on any objective biological criteria, but rather on socially constructed ideas about physical and cultural differences that are used to justify power relations and social inequalities.

I agree with this definition of race as a socio-historical concept because it acknowledges that race is not a natural or biological phenomenon, but rather a product of human history and social relations. It recognizes that race is not something that is fixed or immutable, but rather something that is constantly being constructed and reconstructed by society through processes of racialization and racial formation. This perspective challenges the traditional biological concept of race, which assumes that human differences are based on fixed and immutable categories such as skin color, facial features, or genetic makeup.

In reality, race is socially constructed and can change over time and across different societies. For example, what is considered "black" or "white" in one society may be different in another, and what is considered "racial" in one context may not be in another. The social construction of race is also reflected in the way that racial categories are used to justify power relations and social inequalities, such as in the case of racial discrimination or racial profiling. In summary, race is a socio-historical concept that is shaped by society and culture, and it is important to recognize this in order to challenge racial discrimination and promote social justice.

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20 minutes = 20/60 = 0.33 hr

0.7 kw * 0.33 hr = 0.231 kWh = 0.23 kWh

Plz mark as Brill

Energy used will be 0.23 kWh

Energy is  the capacity of a physical system to do work . The standard unit of energy is Joule(J).

Energy = power * time

Given :

power = 0.70 kW

time = 20 minutes = 20 / 60 hour

Energy = ?

Energy  = 0.70 * (20/60)

              = 0.23 kWh

Energy used will be 0.23 kWh

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The net charge on object A and object B is +2, -2 respectively.

option D.

The net charge in an object means the total after taking account both positive and negative charges.

So when we add the negative and positive charges on an object together we will obtain the net charge on the object.

The net charge on object A is calculated as follows;

Object A (net charge ) = ( + + + ) - ( - - - )

Object A (net charge ) = 3⁺  - 3⁻

Object A (net charge ) = 0

The net charge on object B is calculated as follows;

Object B (net charge ) = ( + + + + + ) - ( - - - )

Object B (net charge ) = 5⁺ - 3⁻

Object B (net charge ) = 2⁺

when the two object interacts, A = +2, B = -2

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Answer:

A force is a push or pull on an object. Forces usually cannot be seen but their effects can.

Nothing moves, changes speed, stops or changes direction without force. Heavier objects need more

force to get them to move or change direction.

Explanation:

The minimum energy input necessary to place this satellite in orbit is

\(\frac{1}{2} m(v^{2} - v_{e} ^{2} ) +GM_{E} m(\frac{1}{r} -\frac{1}{R_{E} } )\)

The mass of the satellite = m

Altitude = h = r

The radius of the Earth = \(R_{E}\)

The Mass of the Earth = \(M_{E}\)

Speed of the satellite = v

Speed of the Earth = \(v_{e}\)

Gravitational Constant = G

The energy at the surface of the Earth will be the sum of the kinetic and potential Energy,

So,

\(E_{i} = K.E. +P.E.\\\\ E_{i} = \frac{1}{2} mv_{e} ^{2} -\frac{GM_{E} m}{r}\)

Also, Energy in orbit,

\(E_{i} = K.E. +P.E.\\\\ E_{i} = \frac{1}{2} mv^{2} -\frac{GM_{E} m}{R_{E} }\)

Now, The change in energy is the minimum energy required to place this satellite in orbit,

Then, the Change in Energy =

∆E \(= \frac{1}{2} m(v^{2} - v_{e} ^{2} ) +GM_{E} m(\frac{1}{r} -\frac{1}{R_{E} } )\)

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Given:

The mass on the table is,

The hanging mass is,

THe coefficient of friction is,

let the acceleration of the whole system is a (for the hanging mass it is downward and for the mass on the table it is rightward). the tension towards The fixed point of the pulley is T.

we can write,

Adding these equations we get,

Substituting the values we get,

Hence the acceleration is 6.66 m/s^2.

Answer:

3amperes

Explanation:

current = voltage ÷ resistance = 90÷30= 3amperes

The current Flows In the circuit​ if, a resistance of 30 ohms is placed in a circuit with a 90-volt battery, is 3 Ampere.

The obstruction to current flow in an electrical circuit is measured by resistance. The Greek letter omega represents the unit of measurement for resistance, known as ohms. Georg Simon Ohm (1784–1854), a German physicist who investigated the connection between voltage, current, and resistance, is the name given to the unit of resistance.

Given:

The resistance of the circuit, R = 30 ohms,

The voltage in the battery, V = 90 volts,

Calculate the current using Ohm law as shown below,

The current of the circuit = The voltage in the battery / The resistance of the circuit,

The current of the circuit = 90 / 30

The current of the circuit = 3 Ampere,

Thus, the current of the circuit having a battery of 90 volts is 3 Ampere.

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Answer:

Wood, metal, Stone

Explanation:

Answer:

Thermal resistance,Specific Heat Capacity,Density

Explanation:

If an object is held at a distance of 19.0 cm from a convex mirror creating an image that is 1/6 the object size. then the focal length of the convex mirror is approximately 361.2 cm.

To answer this question, we can use the mirror equation: 1/f = 1/d_o + 1/d_i, where f is the focal length, d_o is the distance of the object from the mirror, and d_i is the distance of the image from the mirror. We know that d_o = 19.0 cm and the magnification (M) is -1/6 (since the image is inverted and smaller than the object).
Using the magnification formula, M = -d_i/d_o, we can solve for d_i = (-1/6) * 19.0 cm = -3.17 cm. Note that the negative sign indicates that the image is virtual (i.e., it cannot be projected on a screen).
Now, substituting the values of d_o and d_i into the mirror equation, we get: 1/f = 1/19.0 cm - 1/(-3.17 cm), which simplifies to 1/f = 0.0526 cm^-1. Solving for f, we get f = 19.0 cm / 0.0526 cm^-1 = 361.2 cm. Therefore, the focal length of the convex mirror is approximately 361.2 cm.
In conclusion, the focal length of a convex mirror can be determined using the mirror equation, which involves the distances of the object and image from the mirror. It is important to pay attention to the signs of these distances and the magnification factor to correctly interpret the nature and size of the image.

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Analytical maps can be created to depict historical ownership, paved areas for cars, parks, natural amenities, and community street design. Streets, being public spaces, require measurement to determine their intended beneficiaries.

Analytical maps offer a valuable tool for visualizing and understanding various aspects of urban planning. By creating maps that showcase historical ownership patterns, paved areas designated for cars, locations of parks and natural amenities, and community street design, it becomes easier to assess the distribution of resources and infrastructure within a city.

In this context, streets hold a significant role as public spaces. They are not solely meant for vehicular traffic but should also prioritize the needs and activities of pedestrians, cyclists, and the wider community. Analyzing street design through mapping can help evaluate whether streets are primarily designed to cater to cars or if they accommodate a balanced and inclusive approach that considers the needs of all users.

To achieve equitable urban environments, it is crucial to assess the intended beneficiaries of street design and identify any discrepancies or biases in the allocation of public space. By utilizing analytical maps, planners, policymakers, and communities can have a clearer understanding of the current state of street design and work towards creating more people-centric and sustainable cities.

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The entry fee for a child at the amusement park is $65.

To find the entry fee for a child at the amusement park, we need to determine the difference in entry fees between the two families and divide it by the difference in the number of children between the two families.

Entry fee difference: $155 - $90 = $65

The difference in number of children: 3 - 2 = 1

To find the entry fee for a child, we divide the entry fee difference ($65) by the difference in the number of children (1):

Entry fee for a child = Entry fee difference / Difference in number of children

Entry fee for a child = $65 / 1 = $65

Therefore, the entry fee for a child at the amusement park is $65.

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Explanation:

The kilogram (kg) is defined by taking the fixed numerical value of the Planck constant h to be 6.62607015 ×10−34 when expressed in the unit J s, which is equal to kg m2 s−1, where the meter and the second are defined in terms of c and ∆νCs.

Answer:

Explanation:

Given:

V = 3.06 m/s   (North)

F₁ = 6.59 N  (South)

F₂ = 8 507.74 N (toward the ground)

F₃ = 8 507.74 N ( up away from the ground)

F₄ = 147.43 (North)

F₅ = 22.82 (South)

__________

R -?

Forces F₂ and F₃ balance each other.

Resultant force:

R = F₄ - F₁ - F₅

R = 147.73 - 6.59 - 22.81 = 118.33 N

The main cause of melting along subduction zones is the d. release of water from the subducting plate.

Subduction zones are areas where one tectonic plate moves beneath another, causing the denser plate to sink into the mantle. This process generates a significant amount of heat, which contributes to the melting of rocks in the mantle lithosphere.
As the subducting plate moves deeper into the mantle, it experiences increasing pressure and temperature. The minerals within the subducting plate contain water, which is released as the plate is subjected to these extreme conditions. This released water reduces the melting point of the surrounding mantle rocks, causing them to partially melt.

This partial melting creates magma, which can rise through the mantle lithosphere and eventually reach the Earth's surface, resulting in volcanic activity. The release of water from the subducting plate, therefore, plays a crucial role in generating the magma that leads to volcanic eruptions along subduction zones.
In summary, the main cause of melting along subduction zones is the d. release of water from the subducting plate, which lowers the melting point of surrounding mantle rocks and generates magma. This magma can rise through the mantle lithosphere, causing volcanic activity in these regions.

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The main cause of melting in subduction zones is the release of water from the subducting plate, which lowers the melting temperature of the surrounding rocks and causes them to melt.

The main cause of melting along subduction zones is primarily the release of water from the subducting plate (option d). When the oceanic lithosphere subducts, it carries with it water that has been trapped in the minerals of the crust and upper mantle. This water lowers the melting temperature of the surrounding rocks, causing them to melt and form magma. This is termed 'flux melting'. For example, the subduction of the Pacific Plate beneath the North American Plate in the Cascadia subduction zone causes intense volcanic activity in the Pacific Northwest.

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The same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

Let us understand what these terms mean:

In statistical analysis, multicollinearity is the high correlation among predictors in a regression model. It is problematic because of its adverse effects on the model, including making it difficult to determine the effect of an independent variable, coefficients becoming insensitive to small changes in the model, and reducing the reliability of the model.

In regression analysis, independent predictors are those variables that contribute to the prediction of the dependent variable or outcome, and their inclusion in the model improves the accuracy of the prediction of the model.

In a regression model, it is an assumption that predictors are independent, which means that the predictors have little to no correlation with each other. If this assumption is violated, it is known as multicollinearity.

Therefore, the same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

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The object will ACCELERATE in the direction of the larger force. It may be moving in ANY direction.

c.The burning of fossil fuels releases compounds into the air that can be harmful to breathe.

d.Communication technology can cause people to undervalue face-to-face communication.

e.People can become unnecessarily dependent on technology to complete tasks they used to do themselves.

Jogku is a Korean sport similar to Volleyball and Football.

It is played between two teams, the objective is to return the ball to the opponent using only their feet or shin.

Displacement is the change of position of an object, it can be positive or negative depending on the starting point and the direction.

D= d2-d1

Where:

D= displacement

d2= final position

d1= initial position

The ball has displacement, and moves in 2 dimensions, both up and forward. influenced by gravity. This is called Projectile motion.

Displacement is used to determine the change of position of the ball.

The max speed before child starts to slip is 2 rad/s when the coefficients of static and kinetic friction are given.

The greatest relation of applied force to normal force when there is no motion is known as the coefficient of static friction. We all understand that a force called friction resists motion. If we carefully observe, there is a moment at which the body resists movement once force is applied to move it from rest. The applied force must be larger to move the body against this resistance. The coefficient of static friction is the maximum resistance the body can muster in order to maintain its condition of motion.

It is known as a force that works between moving surfaces as kinetic friction. A force acting in the opposing direction of the movement of a body on the surface is felt. The coefficient of kinetic friction between the two materials will determine the amount of the energy.

In this question,

At critical speed, centrifugal force on child must be equal to maximum static friction mω²r=μv,

Where radius is 2m.

coefficient of static friction μ=0.8

and M= mass of child.

Reaction force, N = mg.

mω²r= μmg

= √(μg/r)

Substituting the values, we get,

ω= √(0.8×10)/2

ω= 2 rad/s

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