a wheel 31 cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 6.8 s. how far will a point on the edge of the wheel have traveled in this time

Answer:

well his enemies accused him of attacking scripture and meddling affairs

Explanation:

pls tell me if is right

Answer:

W = 1/2 x P x E

Explanation:

Let :

Formula

Solving

Let's see

\(\\ \rm\rightarrowtail W=P\vec{E}(cos\theta_i-cos\theta_f)\)\(\\ \rm\rightarrowtail W=P\vec{E}(cos0-cos60)\)

\(\\ \rm\rightarrowtail W=P\vec{E}(1-1/2)\)

\(\\ \rm\rightarrowtail W=\dfrac{P\vec{E}}{2}\)

The answer to the query states that the net force on a particle is

76.6 N.

A particle is a relatively small component or amount of matter. It is the smallest part or component of an indivisible, unbreakable item. All matter is composed of particles, which also serve as the fundamental building blocks of all physical events. The shapes, sizes, and weights of particles vary, as do their interactions with one another. They can exist in a vacuum as well as in the states of solid, liquid, and gas.

The magnitude of the two forces, \(F_1\) and \(F_2\), is added to determine the net force acting on particle \(q_1\). \(F_1\)  is the force that \(q_2\) is applying

to  \(q_1\), and it has a value of -14.4 N. Coulomb's Law can be used to compute \(F_2\), which is the force that \(Q_1\) exerts on \(Q_2\):

\(F_2 = k*q_1*q_2/r^2\), where k is the Coulomb constant

\((8.99 x 10^9 Nm^2/C^2)\), \(q_1\) is the charge of \(q_1 (+7.70 \mu C)\), \(q_2\) is the charge of \(q_2\) (-5.90 uC), and r is the distance between the charges

(0.30 m).

As a result of entering these values into the equation, us

\(F_2=(8.99 x 10^9 Nm^2/C^2)*(+7.70 \mu C)*(-5.90 uC)/(0.30 m)^2\\\\F_2=91 N\)

Thus, the net force on particle \(q_1\) is,

\(F_1+F_2=-14.4 N + 91 N\\\\F_1+F_2= 76.6 N\)

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A total differential is an equation in which all the differentials can be integrated independently of each other. To verify that the given expressions are total differentials, we must check if they meet the conditions of being an exact differential function.The given expression is not an exact differential function.

According to the exact differential function, an expression dQ should be equal to the sum of two partial derivatives of the same function. i.e, dQ= dP+ dRA primitive function of an expression is obtained by integrating the given expression partially. Let's solve the given expressions, one by one:

1. Expression : (x² + 2xy-y²)dx + (x²-2xy - y²)dy. Now, we need to find the partial derivatives of the above function with respect to x and y.∂P/∂x = x² + 2xy - y²  ∂Q/∂y = x² - 2xy - y².

On verifying, we get:∂P/∂x = ∂Q/∂y.

Hence, the given expression is an exact differential function.

To find the primitive function, we need to integrate any one of the partial derivatives with respect to x and other with respect to y.

∴ P(x,y) = ∫(x² + 2xy - y²)dx = x³/3 + x²y - xy² + C1 and ∴ Q(x,y) = ∫(x² - 2xy - y²)dy = x²y - y³/3 + C2.

Therefore, the primitive function of the expression is: P(x,y) = Q(x,y) = x³/3 + x²y - xy² - y³/3 + C2.

Expression : (2xcosy - y² sinx) dx + (2ycosx - x² siny) dy. Now, we need to find the partial derivatives of the above function with respect to x and y.∂P/∂x = 2cosy  ∂Q/∂y = 2ycosx.

On verifying, we get:∂P/∂x ≠ ∂Q/∂y .

Hence, the given expression is not an exact differential function.

Therefore, there does not exist a primitive function for the given expression.

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Answer:

Sustainable energy is essential to meet uncontrolled rising demand for energy, reduce pollution and shift to resources that can be used again and again.

Explanation:

Considering the Sustainable Goals floated by United Nation, it is essential for all countries to improve their score in all the SD goals.

One of the SD goal is to shift to sustainable energy.

Sustainable energy is essential from following three points

- Reuse of energy source again and again to outcome the fear of resource depletion

- Sustainable energy source shall ensure cleaner environment

- Sustainable energy sources are also essential to meet the rising consumption of energy with time all across the globe.

Some common examples are - Solar energy, Wind Energy, Energy from nuclear fuels etc.

The hydronium ion concentration in the HCl solution with a pH of 4.65 is approximately 2.2 x 10⁻⁵ M. On the other hand, the hydroxide ion concentration in the NH₃ solution is approximately ≈ 2.2 x 10⁻⁵ M

To calculate the hydronium ion (H3O+) concentration in a solution of HCl with a pH of 4.65, you can use the formula: pH = -log [H3O+].

First, you'll need to rearrange the formula to solve for [H3O+]. You can do this by taking the inverse logarithm (antilog) of both sides:
[H3O+] = 10^(-pH)

Now, plug in the given pH value of 4.65:
[H3O+] = 10^(-4.65)

Calculating the value, you get:
[H3O+] ≈ 2.2 x 10⁻⁵ M

So, the hydronium ion concentration in the HCl solution with a pH of 4.65 is approximately 2.2 x 10⁻⁵ M.

The pOH is defined as the negative logarithm (base 10) of the hydroxide ion concentration ([OH-]).

The relationship between pOH and [OH-] is as follows:

pOH = -log[OH-]

To find [OH-], we rearrange the equation:

[OH-] = 10^(-pOH)

Given a pOH of 4.65, we can calculate the hydroxide ion concentration as follows:

[OH-] = 10^(-4.65)

[OH-] ≈ 2.2 x 10⁻⁵ M

The hydroxide ion concentration in the NH₃ solution is approximately ≈ 2.2 x 10⁻⁵ M (moles per liter)

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Answer:

yaa

Explanation:

Explanation:

i am sooo sorry it will take a lot of time if I copy the sentences,. all answers are correct.

hope this helps you to.

Explanation:

The correct order of charges depends on their sign as follows:

If Q1 and Q3 are opposite in sign, they will attract each other, and the direction of the force between them will be from Q1 to Q3.

If Q2 and Q3 are the same in sign, they will repel each other, and the direction of the force between them will be away from Q2 and towards Q3.

The magnitude of the force between two charges depends on the distance between them and the value of the charges. The force is stronger if the charges are larger and closer together, and weaker if they are smaller and farther apart.

Whatever speed can the dart gain if it separates from spring when it hits its natural lengths (x = 0)? = 3.0 m/s in the horizontal, the spring's force was the only one acting on the dart (friction was ignored).

The greatest location, x=A, correspond to a velocity of zero, and the position with the maximum speed is x=0. The "initial condition" in t=0, where the mass is located at x=A and moving at v=0, corresponds to =0.Here the natural length of the spring is 35cm and the spring is compressed to 14cm in length. the force exerted on bow by the spring is 21cm/(100cm/m)=> F = 5.04N

The fastest-firing Nitro dart blaster is the N-Strike Elite HyperFire. With new batteries, this fully motorised blaster can fire up to 5 dart per second, allowing kids to pelt targets with a barrage of darts.

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Answer: 268 N

Explanation:

\(F_{spring} =k_{s} (L-L_{0})=-3350(0.02-0.10)\)

The energy stored in an inductor is proportional to the square of the current flowing through it. This means that if the current is doubled, the energy stored will be quadrupled. Conversely, if the current is halved, the energy stored will be one-fourth as much.

This is because the energy stored in an inductor is proportional to the square of the current passing through it. In other words, the energy stored is equal to the inductance multiplied by the square of the current. Therefore, when the current doubles, the energy stored will quadruple and when the current halves, the energy stored will be one-fourth as much.

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A state that encourages immigrants to learn and speak one primary language and adopt the national currency is an example of linguistic and cultural assimilation or integration. Linguistic assimilation refers to the process of adopting the dominant language of a society, while cultural assimilation involves adopting the customs, values, and norms of the host country.

By encouraging immigrants to learn and speak the primary language of the country, the state aims to promote effective communication and social integration. This policy facilitates interaction among individuals from diverse backgrounds and fosters a sense of national unity.

Similarly, encouraging immigrants to adopt the national currency promotes economic integration and facilitates participation in the country's financial system. It enables immigrants to conduct transactions, engage in economic activities, and fully participate in the economy of the host country.

Both linguistic and cultural assimilation policies are often implemented with the intention of promoting social cohesion, facilitating economic integration, and fostering a sense of national identity among immigrants and the broader population. However, it is important to note that the implementation and effectiveness of such policies can vary across different countries and contexts.

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A) Pitch depends on the frequency of a sound wave. The higher the pitch, the higher the frequency and the lower the pitch, the lower the frequency. Sound waves have different pitches due to varying frequency levels.

B) Sound is created as the pen vibrates. This vibrations also interacts with the air atoms and molecules, causing them to vibrate too, therefore, creating sound waves. The reason the brain grows annoyed at this continual sound is because the brain will focus on this sound only, causing the brain to go into overdrive, creating annoyance.

C) Sound waves are travelling vibrations of particles. Space does not have any atoms or particles for the sound vibrations to interact with, therefore creating zero sound waves to travel.

Hope this helps!! :))

The pH-dependent protonation and deprotonation of PNP modulate the molecule's absorption spectra, resulting in a shift in the wavelength of maximum absorption, which can be observed as a change in color.

The effect of pH on p-nitrophenol (PNP) and its absorption spectra is primarily attributed to the protonation and deprotonation of the molecule. PNP is a weak acid with a phenolic hydroxyl group that can donate a proton. In acidic conditions (low pH), the phenolic group of PNP remains protonated. As the pH increases, the phenolic group starts deprotonating, resulting in the formation of the PNP anion.The absorption spectra of PNP are significantly influenced by the protonation state. In its protonated form, PNP exhibits absorption maxima at shorter wavelengths (lower energy), typically around 300-320 nm.

This absorption is due to the conjugation of the aromatic ring and the nitro group, which leads to a bathochromic shift (redshift) in the absorption spectrum.As the pH increases and PNP deprotonates, the absorption spectra shift towards longer wavelengths (higher energy). The deprotonated PNP anion shows absorption maxima around 400-420 nm. This shift occurs because deprotonation disrupts the conjugation, altering the electron delocalization in the molecule and causing a hypsochromic shift (blueshift) in the absorption spectrum.

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The sun and moon cause ocean currents in several ways. First, the sun's heat causes the ocean water to expand and become less dense, which creates a rise in sea level. This rise in sea level creates a current that flows away from the equator and towards the poles.

Second, the moon's gravitational pull causes the oceans to bulge, creating tidal currents. These tidal currents can be very strong, and they cause the water to flow in circular patterns around the coasts.

Third, the moon's gravitational pull also causes the earth to rotate on its axis. This rotation creates a current called the Coriolis effect, which causes the ocean water to move in a circular pattern around the earth. This current helps to distribute heat and nutrients throughout the oceans.

Overall, the sun and moon cause ocean currents through their effects on sea level, tidal forces, and the earth's rotation.

Answer:

The sun warms up parts of the oceans. Warm waters rise just like warm air rises. So, as the warmer ocean waters begin to rise in a particular area, the cooler ocean waters from a different area will move in to replace the warmer ocean waters, and this creates our ocean currents.

Answer:

displacement=√50^2+50^2=70.71m

Explanation:

Distance traveled by the athlete=length of the arc

=d(theta)r

Here the athlete runs 3\4of a circle whose radius is 50 m

here, d(theta)=3(pi)/2rad

hence distance=3(pi)/2 x 50

=235.61 m

displacement=the chord between the initial point and the final point. it subtends an angle of 90degrees at the centre of the circle.

it forms a right angled triangle.

hence by Pythagoras theorem,

displacement=√50^2+50^2=70.71m

Answer:

I think it's 7 × 10²

Explanation:

0.0035 time 200000 is 700 and 700 in scientific notation is 7 × 10²

Though i'm not certain if that is correct

Answer:F=1.7802

Explanation:

Since we've been given the mass to be .18kg,we are asked to find the Force of which the formulae is

F=ma where f-force,m-mass and a-acceleration due to gravity

So we can just substitute

F-?.m=.18 and a9.89

F=.18×9.89

F=1.7802N

The gravitational force on Earth due to the ball will be 1..769 N . While the  Earth's resulting acceleration will be 2.9 ×10²³ m/sec².

Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force

The given data in the problem is;

m is the mass of ball=0.18 kg

F is the gravitational force=?

m is the mass of earth= 6.0 x 1024 kg.​

r is the radius of earth = 6.3781×106 m

G is the universal gravitational constant= 6.67408×10-11 Nm/kg2

The gravitational force is given by;

\(\rm F_G=\frac{ G m_1m_2}{r^2} \\\\ \rm F_G=\frac{ 6.67 \times 10^{-11} 0.18 \times 6.0 \times 10^{24}}{6.3781\times 10^6)2}\)

\(\rm F_G= 1.769 N\)

Hence the gravitational force on Earth due to the ball will be 1..769 N.

The force is given as the product of mass and acceleration. So that the value of acceleration is found by;

\(\rm a= \frac{F}{m} \\\\ \rm a= \frac{1.769}{6.0 \times 10^{24}}\)

\(\rm a= 2.9 \times10^{-23}\) m/sec²

Hence the  Earth's resulting acceleration will be  2.9 ×10²³  m/sec².

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All points on the object have the same centripetal acceleration.
The net external torque on the object is constant.


Centripetal acceleration is the acceleration directed towards the center of the circular path. In the case of a rigid object rotating with a constant angular velocity, all points on the object travel in circular paths with the same angular velocity, so they must also have the same centripetal acceleration. Therefore, the statement "All points on the object have the same centripetal acceleration" is true.

According to Newton's second law of motion, the net external force acting on an object is equal to the product of its mass and acceleration. In the case of a rigid object rotating with a constant angular velocity, the angular velocity and hence the angular acceleration are constant, so there must be a net external torque acting on the object to maintain this motion. Therefore, the statement "The net external torque on the object is constant" is true.

When a rigid object rotates with a constant angular velocity, all points on the object have the same centripetal acceleration, and the net external torque on the object is constant.

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The earth absorbs 240 W/m² of energy from the sun and radiates it back to space when measured at the earth's surface.

When measured at the Earth's surface, the amount of energy that the Earth absorbs from the sun and radiates back into space is approximately 240 W/m². This value represents the net energy balance at the Earth's surface, taking into account both incoming solar radiation and outgoing thermal radiation. The Earth's surface absorbs sunlight, which provides energy for various processes such as heating the atmosphere, evaporating water, and supporting biological activity. At the same time, the Earth's surface also emits thermal radiation, primarily in the form of infrared radiation, to maintain a thermal equilibrium. The balance between incoming solar radiation and outgoing thermal radiation is essential for maintaining the Earth's climate and temperature.

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Answer:

use chat gpt

Explanation:

Answer:

The final velocity is 5.24 m/s

The initial speed is 65.5 m/s

Explanation:

Horizontal Motion

When an object is launched horizontally with an initial speed v from a height h, it describes a curved path ruled exclusively by gravity until it eventually hits the ground.

The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:

\(v_x=v_o\)

The vertical component of the velocity changes in time t because gravity makes the object fall at increasing speed given by:

\(v_y=g.t\)

The maximum horizontal distance traveled by the object can be calculated as follows:

\(\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}\)

Another useful formula allows us to calculate the distance traveled by the object in terms of time t:

\(\displaystyle y=\frac{g.t^2}{2}\)

a.

The time taken for the arrow to reach the ground can be calculated by solving the above equation for t:

\(\displaystyle t=\sqrt{\frac{2y}{g}}\)

Since y=1.40 m:

\(\displaystyle t=\sqrt{0.2857}\)

t = 0.53 s

The final vertical speed is:

\(v_y=9.8.(0.53)=5.24\ m/s\)

The final velocity is 5.24 m/s

b)

The initial speed can be calculated by solving the following equation for v:

\(\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}\)

\(\displaystyle v=d\cdot\sqrt{\frac {g}{2h}}\)

\(\displaystyle v=35\cdot\sqrt{\frac {9.8}{2(1.40)}}\)

v = 65.5 m/s

The initial speed is 65.5 m/s

Pluto has always been a bit of an oddball in the solar system, being much smaller than the other planets and having a highly elliptical orbit. In 2006, it was officially reclassified as a "dwarf planet," but it shares some characteristics with comets as well.

For one, Pluto has a very eccentric orbit that brings it much closer to the sun at times than other planets in the solar system. This results in a thin atmosphere that is mostly made up of nitrogen, methane, and carbon monoxide, which can be compared to the gas tails of comets. Additionally, Pluto has a large region of frozen gases and dust called the "coma" that surrounds it and is similar to the coma of a comet. Finally, Pluto's orbit is also influenced by the gravitational pull of Neptune, much like how comets can have their orbits altered by passing near other planets. So while Pluto may not be a traditional planet, it does share some similarities with comets.

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The direction of the velocity of the first ball before the collision is reflected over the normal of the collision surface, which is the line perpendicular to the point of contact between the two balls.

This reflection allows for a more accurate calculation of the velocity of the second ball after the collision. To calculate the final velocities of the balls after the collision, we need to use the conservation of momentum and the conservation of kinetic energy. The momentum of the system before and after the collision must be equal, and the sum of the kinetic energies before and after the collision must also be equal. Using these principles and incorporating the concept of reflection over the collision normal, we can accurately calculate the velocities of the balls after the collision. This calculation takes into account the direction and speed of the balls before the collision, as well as the angle and surface of the collision.

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That depends on what word you skipped at the beginning of the question.

If it's supposed to be "Potential" energy, then the statement is false.**

If It's supposed to be "Kinetic" energy, then the statement is true.

** It's also false if the missing word is "Chemical", "Mechanical", "Thermal", "Nuclear", "Electrical", "Electromagnetic", or "Nervous".)

The direction of the velocity of a negative charge experiencing a magnetic force, assuming it moves perpendicular to the magnetic field (\vec{b}), depends on the direction of the magnetic force acting on the charge.

According to the right-hand rule, if the magnetic force is pointing towards the right (out of the plane of the paper), then the velocity of the negative charge will be in the upward direction. Conversely, if the magnetic force is pointing towards the left (into the plane of the paper), then the velocity of the negative charge will be in the downward direction.

In general, the direction of the velocity of a charged particle that experiences a magnetic force is always perpendicular to both the magnetic field and the direction of the magnetic force acting on the charge. This is because the magnetic force is a cross-product of the velocity of the charged particle and the magnetic field, so the resulting direction of the force and velocity must be perpendicular.

In summary, the direction of the velocity of a negative charge experiencing a magnetic force shown in the figure, assuming it moves perpendicular to \vec{b}, will depend on the direction of the magnetic force acting on the charge, which can be determined using the right-hand rule.

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A 350 mA current will be used to move 185 C of electric charge through the motor in 528.57 seconds, or roughly 8 minutes and 49 seconds.

Electric current is measured in amperes, which are represented by the letter A. One ampere is equal to one coulomb passing through a particular location in a wire in a second. The equation I = Q t can be used to determine current, where Q stands for the amount of charge that passes a place in a given amount of time, t.

The formula is as follows:

Q = I * t

where Q, I, and t represent the electric charge, current, and time, respectively.

We can rearrange the formula to find the time t:

t = Q / I

I = 350 mA (milliamperes) and Q = 185 C (coulombs).

I = 350 mA = 0.35 A

t = 185 C / 0.35 A

Simplifying, we get:

t = 528.57 seconds

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The total amount of flour he used in all is 115kg

One of the four fundamental operations in mathematics is addition, along with subtraction, multiplication, and division. When two whole numbers are added, the sum or total of those values is obtained.

Given that Baker Bill used 67 kilograms of flour on Monday. He used 48 kilograms of flour on Tuesday

We would add the kg of flour he used

This would be 67 + 48 = 115kg of flour

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Answer:

Below

Explanation:

1. Everest

2. Godwin Austen

3. Kangchenjunga

4. Lhotse

5. Makalu

6. Cho Oyu

7. Dhaulagiri

8. Manaslu

9. Nanga Parbat

10. Annapurna

Sorry I don't know anything about their types :(

I hope this helps you :)

Answer:

the 10 tallest mountains are Mount Everest, K2, Kangchenjunga, Lhotse, Makalu, Cho Oyu, Dhaulagiri, Manaslu, Nanga Parbat, and finally annapurna 1 and they are all fold

Explanation:

they are all in the himalayas And the Himalayan mountains are all folded mountains I think

the beta of the equally weighted portfolio of stocks a, b, and c is approximately 0.933.

To calculate the beta of an equally weighted portfolio of stocks a, b, and c, you need to find the weighted average of their betas. The beta of an equally weighted portfolio is calculated by taking the average of the betas of the individual stocks.

In this case, the beta of stock a is 1.5, the beta of stock b is 0.4, and the beta of stock c is 0.9.

To find the beta of the equally weighted portfolio, you would add up the betas of the individual stocks and divide by the number of stocks. So, (1.5 + 0.4 + 0.9) / 3 = 2.8 / 3 = 0.933.

Therefore, the beta of the equally weighted portfolio of stocks a, b, and c is approximately 0.933.

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