An airplane is flying north. What is the direction of the air friction force acting or
the plane?

The total angular momentum of the child plus the merry-go-round remains constant.

Angular momentum is a measure of an object's rotational motion and is equal to its mass times its velocity around a point. In this scenario, the child is walking towards the center of the rotating merry-go-round, thus changing its velocity.

However, as there is no external force acting on the system (child and merry-go-round), the total angular momentum must remain constant as per the law of conservation of angular momentum.

You can learn more about Angular momentum at

https://brainly.com/question/4126751

#SPJ4

Explanation:

Answer:

Approximately \(2.69\; {\rm A}\).

Explanation:

Ensure that all values are measured in standard units. Charge should be measured in coulombs, while time should be measured in seconds:

\(\begin{aligned}t &= 3.0\; {\rm hr} \times \frac{3600\; {\rm s}}{1\; {\rm hr}} = 10800\; {\rm s}\end{aligned}\).

Electric current \(I\) is the rate of flow of electric charge.

In order to find the electric current, divide electric charge \(q\) by the time \(t\) required to transfer these charge. If charge \(q\!\) is measured in coulombs and time \(t\!\) is measured in seconds, the unit of current \(I\)would be amperes:

\(\begin{aligned}I & = \frac{q}{t} \\ &= \frac{29000\; {\rm C}}{10800\; {\rm s}} \approx 2.69\; {\rm A}\end{aligned}\).

If two vectors a and b are given such that their dot product a · b equals zero, then the vectors a and b are orthogonal or perpendicular to each other.

The dot product of two vectors a and b is given by the formula a · b = |a||b|cosθ, where |a| and |b| are the magnitudes of the vectors, and θ is the angle between them. If the dot product of a and b is zero, then cosθ = 0, which means that θ is equal to 90 degrees or π/2 radians. In other words, the vectors a and b are perpendicular to each other.

Furthermore, since a · b = 0, we can rearrange the equation to get |a||b|cosθ = 0. Since cosθ can never be zero unless θ is equal to 90 degrees or π/2 radians, we can conclude that either |a| or |b| (or both) must be zero. This means that either vector a or b (or both) has zero magnitude, which would make it a zero vector.

To know more about dot product, refer here:
https://brainly.com/question/24730931#
#SPJ11

The ball is in the air for about 1.8 seconds before it hits the ground after it leaves the student's hand with a speed of 11 m/s when the hand is 1.8 m above the ground.

Projectile motion is a kind of movement experienced by an object or particle (a projectile) that is projected near the Earth's surface and moves along a curved path under the gravity of the Earth. In general, projectile motion refers to a free-body's motion influenced only by gravity. A student throws a ball straight up while standing on the ground. When her hand is 1.8 m above the ground, the ball leaves her hand at a speed of 11 m/s. The time the ball is in the air before it hits the ground is calculated as follows:Using the equation:

∆y = v0yt + 1/2gt² Where ∆y is the displacement (in this case, -1.8 m) of the projectile along the vertical axis, v0y is the initial vertical velocity (in this case, 11 m/s), t is the time of flight, and g is the acceleration due to gravity (9.81 m/s²):-1.8 m = (11 m/s)t + (1/2)(-9.81 m/s²)t².Rearranging the equation, we get:-4.905t² + 11t - 1.8 = 0.

Using the quadratic formula, we get:t = (-11 ± sqrt(11² - 4(-4.905)(-1.8))) / (2(-4.905))= 1.77 s or t = 0.20 s. Since the ball is in the air for approximately 1.77 s before it hits the ground, and the student's hand is 1.8 m above the ground, the ball is in the air for about 1.8 seconds before it hits the ground. Therefore, the correct answer is the option C, 1.8 seconds.

More on Projectile motion: https://brainly.com/question/29325336

#SPJ11

The correct answer to this open question is the following.

Although there are no options attached we can say the following.

The structure of the article makes the author's argument more effective because the author shares factors that drive people from behaving correctly to behave incorrectly. And these factors are the following. Anonymity when people hide to do damage. Dehumanizing and offend others. Make people feel there are unworthy and despicable. Another one, power and control of people and situations.

In October 2004, author Melissa Dittmann wrote the article "What Makes Good People Do Bad Things?" in the American Psychological Association (APA).  In her article, she refers to the fact that under certain circumstances, good people can end up doing horrible things. Social situations force normal people to transform their behavior and they cause harm to others. The specific case she mentions is the abuse of Iraqi prisoners at Aby Ghraib. This situation was documented by Philip G. Zimbardo, professor of Standford University.

Zimbardo's classic prisoner study at Stanford University revealed how social roles influence our behavior. It was conducted by Philip Zimbardo in 1971. It was used to illustrate the theory of Cognitive Dissonance and the power of authority.

The abuse scandal in Abu Gharib prison in Iraq (2003)  depicted soldiers abusing detainees. Eleven US soldiers were convicted for crimes committed against prisoners.

Capacitors on the basis of the charge stored on the positive plate.

1. A=4cm^2 C=2nF

2. A=2cm^2 C=4nF

3. A=8cm^2 C=2nF

4. A=2cm^2 C=8nF

5. A=1cm^2 C=1nF

6. A=4cm^2 C=1nF

Capacitors are electronic components that store electrical energy. They are made up of two conducting plates separated by an insulating material called a dielectric. When a voltage is applied to a capacitor, it stores a charge in the form of an electric field between the two conducting plates. This stored charge can then be used to provide a current when the voltage is removed. Capacitors are used in a variety of applications including power supplies, filters, oscillators, and motors. They can also be used to store energy for later use, such as providing a short burst of power to a motor or providing a reserve of energy for a power outage.

To learn more about Capacitors
https://brainly.com/question/29217661
#SPJ1

\( \\ \)

According to Coulomb, the electric force for charges at rest has the following properties: Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges.

Things that are negatively charged and things that are positively charged pull on (attract) each other. This makes electrons and protons stick together to form atoms. Things that have the same charge push each other away (they repel each other). This is called the Law of Charges.

\( \\ \)

Hope It Helps!

The final speed of the skier depends on the slope's angle, the coefficient of friction, and the distance traveled. More information is needed to calculate the final speed accurately.

The final speed of the skier depends on several factors such as the slope's angle, the coefficient of friction between the skier and the snow, and the distance traveled. Without knowing these parameters, it is impossible to calculate the final speed accurately. However, we can use the conservation of energy principle to estimate the final speed.

According to the principle of conservation of energy, the total energy of the system remains constant. Initially, the skier has only potential energy, which is converted into kinetic energy as the skier slides down the slope. Assuming there is no significant air resistance, the total mechanical energy of the skier remains constant. Therefore, the kinetic energy gained by the skier equals the potential energy lost by the skier.

The potential energy of the skier is given by mgh, where m is the mass of the skier, g is the acceleration due to gravity, and h is the height of the slope. When the skier reaches the bottom of the slope, the potential energy is converted entirely into kinetic energy, which is given by (1/2)mv^2, where v is the final velocity of the skier. Setting these two equations equal, we can solve for v.

v = sqrt(2gh)

where sqrt represents the square root function.

In conclusion, the final speed of the skier can be estimated using the above equation if the height of the slope is known. However, for a more accurate calculation, other factors such as friction should also be considered.

learn more about speed here:

https://brainly.com/question/28224010

#SPJ11

The correct answer is d. isomer. Isomers are compounds that have the same chemical formula, but different arrangements of atoms within the molecule.

1 This leads to different molecular structures and, often, different chemical and physical properties. Isomers can exhibit differences in properties such as boiling point, melting point, reactivity, and biological activity. The presence of isomers is a result of the phenomenon known as isomerism, where compounds with the same molecular formula can have distinct structural arrangements.

2) The continental average geothermal gradient is approximately 25C/km, as stated in option b. The geothermal gradient refers to the rate at which temperature increases with increasing depth within the Earth's crust. It is expressed in degrees Celsius per kilometer (C/km). The continental average geothermal gradient is an approximation of the average temperature increase per kilometer of depth across continental landmasses. However, it's important to note that the geothermal gradient can vary significantly depending on geological factors, such as tectonic activity, rock composition, and local geologic conditions.

3) The four mechanisms of heat flow are conduction, convection, advection, and radiation.

- Conduction is the transfer of heat through direct contact between molecules or particles. It occurs in solid materials where heat is transferred from higher temperature regions to lower temperature regions.

- Convection is the transfer of heat through the movement of fluid, either liquid or gas. It involves the circulation of heated material, which carries heat energy from one place to another.

- Advection refers to the transfer of heat by the movement of a fluid, such as wind or water, over a surface. It involves the transport of heat by the bulk movement of the fluid itself.

- Radiation is the transfer of heat through electromagnetic waves. It does not require a medium for transfer and can occur in a vacuum. Radiative heat transfer occurs through the emission, absorption, and transmission of electromagnetic radiation.

4) During increased sedimentation, the geothermal gradient tends to decrease. Sedimentation refers to the accumulation of sediments, such as sand, silt, and clay, on the Earth's surface or in bodies of water. When sediments accumulate, they act as insulating layers that hinder the transfer of heat from the deeper regions of the Earth's crust. This insulation reduces the amount of heat conducted upwards, resulting in a decrease in the geothermal gradient. Therefore, option a, the geothermal gradient decreases, is the correct answer.

5) The "oil window" is primarily controlled by how temperature changes with depth, as indicated in option d. The oil window refers to the range of temperatures within which hydrocarbons, particularly oil, can be generated and preserved. It represents the thermal conditions necessary for the organic matter present in sedimentary rocks to undergo thermal maturation and generate hydrocarbons. The temperature changes with depth are influenced by various factors, including the geothermal gradient, the thermal conductivity of rocks, and the heat flow from the Earth's interior. As the temperature increases with depth within the Earth's crust, it reaches a range where the organic matter transforms into hydrocarbons, defining the boundaries of the oil window.

To learn more about molecule, click here:
brainly.com/question/30337264

#SPJ11

Answer:

5/8 times that on the surface of the earth or 2.41 × 10^23 kg

The labels A and B in the triangle's supplied picture stand for the transitions from a gas to a liquid and a gas to a solid, respectively.

Arrow A, which descends one side of the triangle from the top labelled "gas," symbolises condensation, the transformation of a gas into a liquid.

When a gas loses energy and changes into a liquid state, condensation takes place.

The transition from a gas to a solid is shown by arrow B, which also descends from the top and is labelled "gas" but is located on a different side of the triangle. Deposition is the term for this alteration. When a gas loses energy, it decomposes into a solid without changing to a liquid state, which is known as deposition.

Arrow C travels horizontally from the point designated "liquid" on the bottom of the triangle to the place designated "solid." This illustrates freezing, the transition from a liquid to a solid state. When a liquid loses energy, it freezes and changes from a liquid state to a solid state.

For more such question on condensation

https://brainly.com/question/29825431

#SPJ11

Given :

Potential ,

\(P=644 \times 10^6\ V\\ \\P=6.44\times 10^8\ V\)

Uniform magnetic field , B = 0.02 T .

Mass of proton , \(M_p=1.67\times 10^{-27}\ kg\) .

Charge on proton , \(e=1.6\times 10^{-19}\ C\) .

Also , velocity of proton is perpendicular to magnetic field .

To Find :

The radius of the proton's resulting orbit .

Solution :

Now , when velocity is perpendicular to magnetic field radius of orbit is given by :

\(r=\sqrt{\dfrac{2VM_p}{eB^2}}\)

Putting all given values above :

\(r=\sqrt{\dfrac{2\times 6.44\times 10^8\times 1.67\times 10^{-27}}{1.6\times 10^{-19}\times 0.02^2}}\\\\r=183.33 \ m\)

Therefore , radius of orbit is 183.33 m .

Hence , this is the required solution .

The interior zones of the Sun are distinguished by differences in temperature, density, and nuclear processes.

The interior of the Sun can be divided into several distinct zones based on variations in temperature, density, and the dominant nuclear processes taking place within each zone.

1. Core: The core is the central region where nuclear fusion occurs. It is characterized by extremely high temperatures and densities. The core is the hottest and densest part of the Sun, and it is where hydrogen nuclei undergo nuclear fusion to form helium, releasing a vast amount of energy in the process.

2. Radiative Zone: Surrounding the core is the radiative zone, which is primarily responsible for the transport of energy through radiation. In this zone, photons of energy are repeatedly absorbed and re-emitted as they make their way outward, gradually transferring heat towards the surface.

3. Convective Zone: Beyond the radiative zone lies the convective zone. In this region, energy transport occurs through convection, where hot plasma rises and cooler plasma sinks. Large-scale convection cells carry heat towards the surface, creating the visible granulation patterns seen on the Sun's photosphere.

The distinct interior zones of the Sun are defined by these variations in temperature, density, and the mechanisms of energy transport and nuclear processes occurring within each zone.

To know more about nuclear fusion, refer here:

https://brainly.com/question/14019172#

#SPJ4

The power of the lens is 2 diopter means that this lens has a focal length of 1/2 meter.

The focal length = 1 ÷ ( the number of diopters)

If one's glass prescription shows that the power of the lens is 2 diopter it means that the person is far-sighted. It means if a person needs to see something which is quite distant then his eyes need extra lens power to focus on it. Moreover, if there's a sign convention it means '+' indicates a convex lens and '-' concave lens. Also in-camera close up lens are also measured in terms of diopter.

I hope this answer helps.

To learn more about lenses,

https://brainly.com/question/766997

https://brainly.com/question/17014859

The composition of two reflections across non-parallel lines results in a translation, with the same center results in a single rotation, with the same center but in opposite directions results in a single rotation, with different centers results in a single rotation, the composition of a rotation and a reflection results in a single reflection and the composition of a rotation and a reflection results in a single reflection.

To determine the single rigid motion represented by the given composition, we need to analyze the properties and transformations involved.

A. (reflection in line n) o (reflection in line m), when lines n and m are not parallel:

The composition of two reflections across non-parallel lines results in a translation.

B. (rotation, center P, x⁰ cw) o (rotation, center P, y⁰ cw):

The composition of two rotations with the same center results in a single rotation.

C. (rotation, center Q, a⁰ cw) o (rotation, center Q, b⁰ ccw):

The composition of two rotations with the same center but in opposite directions results in a single rotation.

D. (rotation, center R, 50⁰ cw) o (rotation, center S, 60⁰ cw), where R and S are different:

The composition of two rotations with different centers results in a single rotation.

E. (rotation, center T, 40⁰ cw) o (reflection in line p), where line p goes through point T:

The composition of a rotation and a reflection results in a single reflection.

F. (rotation, center T, 40⁰ cw) o (reflection in line q), where line q misses point T:

The composition of a rotation and a reflection results in a single reflection.

Based on the given options, the correct answer would depend on the specific properties and transformations described by the problem statement. Without additional information or a diagram, it is not possible to determine the exact answer.

Learn more about reflections here:

https://brainly.com/question/14615662

#SPJ11

To construct an open rectangular box with maximum volume, the dimensions should be such that the length, width, and height are equal.

To find the dimensions that result in a box of maximum volume, we need to consider the relationship between the dimensions and the volume of the box. Let's assume the length of the box is L, the width is W, and the height is H. Since the box is open, it does not have a top surface.

The volume of a rectangular box is given by the formula V = L * W * H. However, in this case, we have a constraint that the material used to construct the box has a fixed amount, so the total surface area of the box must be constant. The surface area of an open rectangular box is given by A = 2LW + LH + WH.

To find the dimensions that maximize the volume, we need to find the critical points of the volume function. By applying the constraint of constant surface area, we can express one of the dimensions in terms of the other two using the surface area formula. Substituting this expression into the volume formula, we obtain a function that depends on two variables. Taking the derivative of this function and setting it to zero, we can solve for the critical points.

By solving the equations, we find that the dimensions resulting in a box of maximum volume are when the length, width, and height are all equal. In other words, the box is a cube. This is because a cube maximizes the volume within the given constraints, as any deviation from equal dimensions would result in a smaller volume.

Find more about maximum volume on :

https://brainly.com/question/3246847

#SPJ11

Answer:

Electroplating involves deposition of a thin layer of metal onto the surface of a substance(compound) through electric current. This helps preserve the substance(compound) from rust and oxidative damage.

As an entrepreneur which has been provided a loan by a bank to set up a small electro plating unit. I would venture into electroplating electronic/electric appliances parts.This is because these types of appliances are in vogue now and used my millions of people for their day to day activities. This means that more people will come for various degrees of production and repairs which would include electroplating . This translates to more customers and more money for the repayment of the loan.

The angle in radians between two vectors can be found using the dot product formula:

\(θ = cos^-1 ((a • b) / (||a|| ||b||))\)

Where:
- θ is the angle between the vectors in radians
- a and b are the two vectors
- a • b is the dot product of the vectors
- ||a|| and ||b|| are the magnitudes of the vectors

To find the angle between the vectors, first calculate the dot product of the vectors by multiplying the corresponding components of the vectors and adding the results. Then, find the magnitudes of the vectors by taking the square root of the sum of the squares of the components. Finally, plug the dot product and magnitudes into the formula and use the inverse cosine function to find the angle in radians.

For example, if the vectors are a = (1, 2, 3) and b = (4, 5, 6), the angle between them would be:

\(θ = cos^-1 (((1)(4) + (2)(5) + (3)(6)) / (sqrt((1)^2 + (2)^2 + (3)^2) * sqrt((4)^2 + (5)^2 + (6)^2)))\)

\(θ = cos^-1 ((4 + 10 + 18) / (sqrt(14) * sqrt(77)))θ = cos^-1 (32 / (sqrt(14) * sqrt(77)))θ = 0.225 radians\)
So the angle between the vectors is 0.225 radians.

Learn more about vectors: https://brainly.com/question/25705666

#SPJ11

for what we can get from our side then we will see if they are being made in a letter or something which is leading enormous growth in cities with brick and its own way that it will not on the market and its not a good life for us to stay in and

The time it takes one to move from one place to another daily, can be used to quantify motion. Speed is used to quantify how fast an object moves.

What is motion?

This is the displacement with time of the position or orientation of a body. The displacement can be along a straight line or a curve.

Hence from the definition of motion, we can see that motion is dependent on time. We quantify motion by measuring the distance and dividing it by the time taken to move.

Speed measures how fast an object is moving through a distance, and it is calculated using this formula:

S= Δd/ Δt,

where S stands for speed,

d stands for distance, and

t stands for time.

learn more about speed on

https://brainly.com/question/12287298

#SPJ1

The speed at the bottom of the circle is v^2_bottom = v^2_top + 4gL. The net force acting on the ball is the sum of the tension force (T_bottom) and the gravitational force (mg), which provides the centripetal force. The tension force at the top is equal to the tension force at the bottom. Therefore, T_top = T_bottom.

a. At the bottom of the circle, the ball is moving with a speed v_bottom. In this motion, mechanical energy is conserved because there is no external work being done on the system.

Using the conservation of energy, we can set up the equation:

1/2 * m * v^2_top + m * g * 2L = 1/2 * m * v^2_bottom

The first term on the left side represents the kinetic energy at the top of the circle, which is equal to 1/2 * m * v^2_top. The second term represents the potential energy at the top, which is equal to m * g * 2L (twice the height of the circle).

Simplifying the equation, we get:

v^2_bottom = v^2_top + 4gL

b. At the bottom of the circle, the ball is moving in a circle of radius L, experiencing a centripetal acceleration. The net force acting on the ball is the sum of the tension force (T_bottom) and the gravitational force (mg), which provides the centripetal force.

Setting up the equation for the net force:

T_bottom - mg = m * (v_bottom)^2 / L

Solving for T_bottom, we have:

T_bottom = mg + m * (v_bottom)^2 / L

c. At the top of the circle, the tension force (T_top) is the sum of the gravitational force (mg) and the centripetal force, which is provided by the tension in the string. Since the string remains taut, the tension force at the top is equal to the tension force at the bottom.

Therefore, T_top = T_bottom.

The difference between the tension forces at the bottom and top is 2mg, which is more than what we would expect from the change in relative directions of the tension force and gravitational force. This difference arises because the ball speeds up as it swings down to the bottom, leading to an additional increase in tension.

To learn more about gravitational force click here

https://brainly.com/question/29190673

#SPJ11

Answer: the ammeter

Explanation:

Answer:

The answer is D. The ammeter.

Explanation:

I took the quiz.

Answer:

A) Conduction

Explanation:

The mitt keeps the heat from reaching your hand through conduction

Answer: A.conduction

Explanation: i got it right on my test!

Answer: Equilibrium is the state in which market supply and demand balance each other, and as a result prices become stable. The balancing effect of supply and demand results in a state of equilibrium.

This is the answer please ap mujhe follow kar lo please

Answer:

The force is - 150 N

Explanation:

F = 30 • - 5 = - 150