Neutrons have a_____charge.

Answer:

pun

Explanation:

The Sun is a main-sequence star which is also known as G2V.

It can also known as yellow dwarf because of its yellow colour. It was formed about 4.6 billion years ago from the gravitational collapse of matter of a large molecular cloud.

So we can conclude that the Sun is a main-sequence star which is also known as G2V.

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Answer:

9/20

Explanation:

According to this question, Lucy and JoJo need to make 140 cupcakes for the school dance. Lucy made 35 of the cupcakes while JoJo made 42 cupcakes. This means that in total, (42 + 35) cupcakes has been made by both Lucy and JoJo

That is, 77 cupcakes out of 140 has been made. This is 77/140 i.e. 11/20

Since 77/140 cupcakes has been made, Lucy and JoJo still need to make;

140 - 77 = 63 cupcakes to meet up their target for the school dance.

This means that the fraction left is 63/140

63/140 in its lowest term is 9/20

Hence, 9/20 of the cupcakes still need to be made by Lucy and JoJo.

Explanation: 140 - 35 = 105 - 42 = 63

yare yare daze

I use tusk act 4 main

Answer:

False

Explanation:

Just took the test

False, because hypochondriacs think they have a significant, undetected medical ailment even when testing reveal they are healthy.

A hypochondriac is someone who, despite diagnostic testing showing they have no health issues, lives in constant anxiety that they have a terrible, undetected medical illness. They are obsessed with the concept that they suffer from a major illness that has gone untreated.

In adults, hypochondriasis often begins to manifest. Among the symptoms are a persistent, strong anxiety of developing a major illness and concern that seemingly little symptoms portend a larger problem. A patient may change physicians or see them regularly.

Medication and counselling could be helpful.

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Answer: False

Explanation: The size of the observable cosmos has changed during the past few billion years. Since the Big Bang, which is thought to have happened approximately 13.8 billion years ago, the observable universe has been expanding. This indicates that the observable universe has been expanding together with the distance between galaxies. The cosmos has seen phases of acceleration and slowdown in its expansion, however the rate of expansion has not always been constant. The observable universe is therefore bigger than it was a few billion years ago.

F=ma

Newton's second law states that force is proportional to what is required for an object of constant mass to change its velocity. This is equal to that object's mass multiplied by its acceleration. We use Newtons, kilograms, and meters per second squared as our default units, although any appropriate units for mass (grams, ounces, etc.) or velocity (miles per hour per second, millimeters per second2, etc.) could certainly be used as well - the calculation is the same regardless.

The statements which are correct about calculating LaToya's mechanical advantage are—The input force is 50 N, the output force is 450 N and the mechanical advantage is 10.Therefore, the correct option is A, D and E.

Mechanical advantage is the ratio of output force to input force. In this case, LaToya is using a force of 50 N to pull a cart that weighs 500 N. The output force is the weight of the cart minus the force LaToya exerts on it:

Output force = 500 N- 50 N = 450 N

To see why statement F is incorrect, note that the formula for mechanical advantage is:

Mechanical advantage = output force / input force

Substituting the values we found earlier, we get:

Mechanical advantage = 450 N / 50 N = 9

So the mechanical advantage is actually 9, not 100.

Therefore, the correct option is A, D and E.

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To show the cycle of day and night on Earth using this model, the student holding the globe (representing the Earth) can rotate the globe on its axis while the other student shines the flashlight (representing the Sun) at the globe.

The day-night cycle, also known as the diurnal cycle, is the regular pattern of changes in light and darkness that occur over a 24-hour period on Earth.

To show the cycle of day and night on Earth using this model, the student holding the globe (representing the Earth) can rotate the globe on its axis while the other student shines the flashlight (representing the Sun) at the globe. As the globe rotates, different parts of the surface will be illuminated by the light, while other parts will be in shadow.

To simulate daytime, the student shining the flashlight can direct the light toward the part of the globe facing the light source, while the student holding the globe rotates it so that the illuminated part faces the light. To simulate nighttime, the student can direct the light away from the part of the globe facing the light source, while the student holding the globe rotates it so that the unilluminated part faces the light.

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Answer:

F = 32.28 N

Explanation:

For this exercise we must use the rotational equilibrium relation

          Σ τ = 0

In the initial configuration it is in equilibrium, for which all the torque and forces are compensated. By the time the payment lands on the bar, we assume that the counter-clockwise turns are positive.

          W_bird  L / 2 - F_left 0.595 - F_right 0.595 = 0

we assume that the magnitude of the forces applied by the hands is the same

          F_left = F_right = F

          W_bird L / 2 - 2 F 0.595 = 0

          F = \(\frac{m_{bird} \ g L} { 4 \ 0.595}\)

we calculate

         F = 0.560 9.8 14.0 /2.38

         F = 32.28 N

The electric potential energy of the charge will be =3.5*10^8 J  

Electric potential energy is the energy that is needed to move a charge against an electric field.

F=Force experienced by the charge = 3.6*10^-4 N

q1 = magnitude of charge producing the electric field

q2 = magnitude of charge experiencing the electric force

r1 = distance between the two charges

Electric force experienced by the charge is given using coulomb's law as

\(F=\dfrac{kq_1q_2}{r^2}\)

\(3.6\times 10^{-4}=\dfrac{9\times 10^9 q_1q_2}{(9.8\times 10^{-5})^2}\)

\(q_1q_2=3.84\times 10^{-22}\)

Electric potential energy of the charge can be given as

\(U=\dfrac{kq_1q_2}{r}\)

\(U=\dfrac{(9\times 10^9)q_1q_2}{(9.8\times 10^{-5})^2}\)

\(U=3.5\times 10^{-8}\ J\)

Thus Electric potential energy of the charge can be given as \(U=3.5\times 10^{-8}\ J\)

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Fission reactors are an important energy source, but environmental costs and issues are associated with their production. The most significant issue is the production of nuclear waste, which poses a serious threat to the environment and public health.

Nuclear waste is radioactive and can remain hazardous for thousands of years, making it difficult to safely dispose of. Moreover, it can contaminate water, soil, and air if disposed of improperly. Another issue is the high consumption of water required to cool the reactor, which can have a negative impact on aquatic life in rivers and lakes. Furthermore, the production and mining of uranium, which is the fuel for fission reactors, can lead to soil erosion and contamination. Additionally, uranium mining requires large amounts of energy, contributing to greenhouse gas emissions and other forms of pollution. In conclusion, producing energy through fission reactors results in several environmental costs and issues. While nuclear power is a clean source of energy compared to fossil fuels, its production and waste disposal methods pose serious environmental risks.

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A power loss ride through function is limited to 1-2 seconds.

Typically, the length of the power loss ride-through function is created to offer a long enough buffer time to bridge the gap between the power loss and the power restoration. It enables the system or gadget to securely shut down without causing a sudden disruption to operations.

The application requirements, system criticality, energy storage or backup power capacity, and the time needed for power restoration or alternative power source activation can all be used to establish the precise duration of the ride-through function.

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Answer:

3 m/s

Explanation:

distance (rise) over time (run) gives speed, that is velocity

it can be found using the gradient (m) formula

m=(y2-y1)/(x2-x1)

m=(15-3)/(4-0) =12/4=3 m/s

Answer:

3 m/s

Explanation:

.....as the answer for your question is 3m/s ..

THANK YOU..

Answer:

4 Joules (if you mean 2000 grams)

4000 Joules (if you mean 2000 kilograms)

Explanation:

Answer:

¿Podrías poner la pregunta en inglés por favor?

Explanation:

The new values of T∥1 and T⊥1 will be equal to the original isotropic temperature T0.

When the magnetic field is doubled slowly compared to a gyroperiod but fast compared to the energy transfer time between T∥ and T⊥, the plasma remains magnetized, but the magnetic field becomes stronger. Since the energy transfer time between T∥ and T⊥ is much longer than the timescale of magnetic field doubling, the temperature anisotropy is not affected during this process. Therefore, T∥1 and T⊥1 remain equal to T0.

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The tangential velocity of the car, given that the car has a mass of 905 Kg and moves in a horizontal circular path of radius 517 m is 35 m/s (option B)

First, we shall list out the given parameters from the question. Details below:

The tangential velocity of the racing car can be obtained as illustrated below:

F = mv² / r

2140 = (905 × v²) / 517

Cross multiply

905 × v² = 2140 × 517

905 × v² = 1106380

Divide both sides by 905

v² = 1106380 / 905

Take the square root of both sides

v = √(1106380 / 905)

v = 35 m/s

Thus, from the above calculation, we can conclude that the tangential velocity is 35 m/s (option B)

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The initial velocity at which the arrow left the bow is approximately 29.4 meters per second. The time required for the arrow to reach the guard is approximately 3.89 seconds.

To calculate the initial velocity (vo) of the arrow, we can use the horizontal and vertical components of the motion. The horizontal distance traveled by the arrow is given as 97.6 meters. Using the formula for horizontal distance (x = v * t), where v is the horizontal component of the velocity and t is the time, we can solve for v. Rearranging the equation, we have v = x / t. Substituting the given values, we find v = 97.6 meters / t.

The vertical distance traveled by the arrow is the difference in height between the ground and the ramparts. In this case, it is 5.45 meters - 1.38 meters = 4.07 meters. The vertical motion of the arrow can be analyzed using the formula for vertical displacement (y = v0y * t + (1/2) * g * t²), where v0y is the vertical component of the initial velocity and g is the acceleration due to gravity (approximately 9.8 m/s²). Since the arrow starts at rest vertically (v0y = 0), the equation simplifies to y = (1/2) * g * t².

We can solve these two equations simultaneously to find the values of v and t. Substituting the given values, we have 4.07 meters = (1/2) * 9.8 m/s² * t² and v = 97.6 meters / t. Solving the first equation for t, we find t² ≈ 0.835 seconds².

Taking the square root of both sides, we get t ≈ 0.915 seconds. Substituting this value of t into the second equation, we can solve for v: v ≈ 97.6 meters / 0.915 seconds ≈ 106.75 meters/second.

However, we need to consider the initial angle of -19.6 degrees. This angle affects the vertical and horizontal components of the initial velocity. We can decompose the initial velocity into its vertical and horizontal components using trigonometry.

The horizontal component (v0x) is given by v0x = v * cos(theta), where theta is the initial angle. The vertical component (v0y) is given by v0y = v * sin(theta). Substituting the values, we have v0x = 106.75 m/s * cos(-19.6 degrees) and v0y = 106.75 m/s * sin(-19.6 degrees). Evaluating these expressions, we find v0x ≈ 100.82 m/s and v0y ≈ -36.36 m/s.

Finally, to find the time required for the arrow to reach the guard, we can use the horizontal component of the motion. Rearranging the equation x = v * t, we have t = x / v. Substituting the given values, we find t = 97.6 meters / 100.82 meters/second ≈ 0.97 seconds.

In summary, the initial velocity (vo) at which the arrow left the bow is approximately 29.4 meters per second. The time required for the arrow to reach the guard is approximately 3.89 seconds.

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The sound level of 86dB when fired simultaneously will have sound level of 82.9898dB.

Theory-

According to the Beta factor model, the common cause will have an equal impact on every member of a component group that shares a common cause.

The beta factor model is simple to use, models common cause failures, and only requires one parameter to be determined.

A drawback of the beta factor model is that it is impossible to quantify the failure of k–m components within a common cause component group.

As a result of multiplying the partial beta factors, the beta factor is calculated.

Mathematics-

\(\beta =10log\frac{2I}{i} \\\\\beta 1=10log\frac{I}{i} \\\\\beta =10log2 +\beta 1\\\\\beta 1=\beta -10log2\)

Calculation-

\(\beta 1=86-10log2\\\\\beta 1=86-3.0102\\\\\beta 1= 82.9898dB\)

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Answer:81.66667 N

Explanation:

Answer:

D) 81.6667

Explanation:

It is right

Brainliest? plz

The distance between the Sun and Earth is approximately 93 million miles or about 150 million kilometers. This distance is equivalent to about 8 light minutes. Since light travels at a speed of approximately 186,282 miles per second or 299,792 kilometers per second, it takes around 8 minutes for light to travel from the Sun to Earth.

To calculate this distance, we can multiply the speed of light by the number of seconds in a minute (60) and then by the number of minutes in an hour (60) to get the distance traveled in one hour. Finally, we multiply this by the number of hours in a day (24) and by the number of days in a year (365.25) to get the total distance light travels in one year.

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An iron carbon alloy is considered steel when its carbon percentage falls within the range of 0.02% to 2.1%. If the carbon content exceeds 2.1%, the alloy is classified as cast iron.

Steel is an iron carbon alloy that contains relatively low carbon percentages. Typically, steel is defined as an alloy with a carbon content ranging from 0.02% to 2.1%. The presence of carbon in this range imparts desired mechanical properties to steel, such as strength, hardness, and toughness. The specific carbon content within this range can vary based on the desired characteristics of the steel, with higher carbon percentages leading to increased hardness and lower ductility.

In contrast, cast iron is an iron carbon alloy with a higher carbon content than steel. Cast iron is typically defined as an alloy with a carbon percentage exceeding 2.1%. The higher carbon content in cast iron results in a material that is more brittle and less malleable compared to steel. This makes cast iron suitable for applications where high hardness, wear resistance, and good castability are required, such as in engine blocks, pipes, and cookware.

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Three identical resistors of resistances 5Ω, 10Ω and 30Ω are connected with a battery of 12V\(.\)

We have to find current through the each resistor and equivalent resistance of circuit\(.\)

➝ Equivalent resistance of series connection is given by

➝ We know that, Equal current flow through each resistor in series connection.

➝ As per ohm's law, Current flow through a conductor is directly proportional to the applied potential difference.

◈ Equivalent resistance :

⇒ Req = R1 + R2 + R3

⇒ Req = 5 + 10 + 30

⇒ Req = 45Ω

◈ Current flow in circuit :

⇒ V = IReq

⇒ 12 = I × 45

⇒ I = 0.27A

፨ Therefore, 0.27A current will flow through each resistor.

The frequency of the horn of a car moving towards you would increase, while the frequency of a car moving away from you would decrease due to the Doppler effect.

The frequency of the sound waves an automobile makes will rise as it approaches you. This is due to the sound waves compression as the automobile draws closer to you, which causes them to have a shorter wavelength and a higher frequency. The Doppler effect is the name for this rise in frequency.

On the other hand, when an automobile pulls away from you, the sound waves' frequency will drop because they stretch, leading to a longer wavelength and a lower frequency. As a result, if all vehicles produce sound at the same frequency, you would hear a frequency rise for a vehicle travelling in your direction and a frequency drop for a vehicle driving away from you.

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If the car is moving towards you, the frequency of the horn will increase,moving away from you, the frequency will decrease

If the horns of all cars emitted sound at the same pitch or frequency, the frequency of the horn of a car moving toward you would appear to increase, as the sound waves are compressed and the wavelength is shortened due to the Doppler effect. Conversely, the frequency of the horn of a car moving away from you would appear to decrease, as the sound waves are stretched and the wavelength is lengthened due to the Doppler effect. This is because the observer perceives a higher frequency when the source is approaching and a lower frequency when the source is moving away.

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Answer:

c

Explanation:

Answer:To calculate the elastic potential energy stored in the spring, we can use the formula:

Elastic potential energy = (1/2) * k * Δx^2

where k is the force constant of the spring and Δx is the change in length from the relaxed length.

First, we need to calculate Δx:

Δx = 3.50 m - 2.58 m

Δx = 0.92 m

Now, we can calculate the elastic potential energy:

Elastic potential energy = (1/2) * k * Δx^2

Elastic potential energy = (1/2) * 5.2 N/m * (0.92 m)^2

Elastic potential energy = 2.17 J

Therefore, the elastic potential energy stored in the spring is 2.17 J.

Explanation:

Any substance that possesses mass and volume is considered to be matter. In general, atoms and anything composed of them are considered to be "matter."

Energy is the power to effect change or carry out work.

The connection between energy and matter is determined by the speed of light, per the theory of relativity. E = M x C^2, where E is energy, M is mass, and C is the speed of light, describes how matter and energy are related.

Matter and Energy - How are they inter-related?

The variation in a body's mass is inversely proportional to the square of the speed of light and directly correlated with the amount of energy released during the conversion process. An energy conversion process can be carried out by a system using this kind of transformations, in which some of the body's intrinsic energy is converted into thermal energy or radiant light. Also implied by this process is a loss of mass. At the atomic level, the shift of mass is significant because it demonstrates that matter is not an immutable property of the body and that it may, in fact, "disappear," releasing energy to the outside.

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Answer:

The match is made of wood or paper, mainly cellulose, a carbohydrate. When it burns, carbon and hydrogen combine with oxygen in the air and go off into the atmosphere. The match loses mass, but the mass goes somewhere else—in this case, the atmosphere. When a match burns, its mass decreases

Explanation:

PLEASE GIVE ME BRAINLIEST IF NEW IT SHOULD SAY NEAR MY ANSWER MARK AS BRAINLIEST IF NOT YOULL HAVE TO WAIT A DAY AND BRAINLY WILL REMIND YOU

The frequency of the object's motion is 1/19 Hz

Given that an object moves around a circle of radius 10 meters in 19 seconds.

We need to find the frequency of the object's motion.

Formula for the frequency of the object's motion

Frequency of the object's motion is defined as the number of cycles completed by an object in one second. It is denoted by "f" and measured in hertz (Hz).

f = 1/Twhere,T is the time taken by the object to complete one cycle.

We have the radius of the circle, not the diameter or circumference of the circle.

Therefore, we need to find the circumference of the circle using the radius of the circle.

Circumference of the circle = 2πr= 2 x π x 10 = 20π

The object completes one full cycle to come back to its original position after it moves around the circle.

So, the time taken by the object to complete one cycle (T) = 19 seconds

Therefore, the frequency of the object's motion,f = 1/T= 1/19 Hz

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Answer:

Q = 2.95*10^5 kJ

Explanation:

In order to calculate the energy required to melt the cooper, you first calculate the energy required to reach the boiling temperature. You use the following formula:

\(Q_1=mc(T_b-T_1)\)     (1)

m: mass of cooper = 540 kg

c: specific heat of cooper = 390 J/kg°C

Tb: boiling temperature of cooper = 1080°C

T1: initial temperature of cooper = 20°C

You replace the values of the parameters in the equation (1):

\(Q_1=(540kg)(390\frac{J}{kg.\°C})(1080\°C-20\°C)=2.23*10^8J\)

Next, you calculate the energy required to melt the cooper by using the following formula:

\(Q_2=mL_f\)         (2)

Lf: melting constant of cooper = 134000J/kg

\(Q_2=(540kg)(134000\frac{J}{kg})=7.24*10^7J\)

Finally, the total amount of energy required to melt the cooper from a temperature of 20°C is the sum of Q1 and Q2:

\(Q=Q_1+Q_2=2.23*10^8J+7.24*10^7J=2.95*10^8J=2.95*10^5kJ\)

The total energy required is 2.95*10^5 kJ

The total energy required to melt the copper is equal to \(2.95 \times 10^5\) Kilojoules.

Given the following data:

Scientifically, we know that:

To calculate the total energy required to melt the copper:

First of all, we would determine the quantity of heat energy required to reach the boiling temperature of copper.

Mathematically, quantity of heat is given by the formula;

\(Q_b = mc\theta\\\\Q_b = 540 \times 390 \times (1080-20)\\\\Q_b = 210600 \times 1060\\\\Q_b = 2.23 \times 10^8 \;Joules\)

Next, we would determine the quantity of heat energy required to melt copper.

\(Q_b = 540 \times 134000\\\\Q_b = 7.2 \times 10^6 \; Joules\)

For total energy:

\(Q_T = Q_b + Q_m\\\\Q_T = 2.23 \times 10^8 + 7.24 \times 10^7\\\\Q_T = 2.95\times 10^8\\\\Q_T = 2.95\times 10^5\; Kilojoules\)

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Answer:

Chromatic aberration is a visual effects that distorts the image. It occurs when different wavelengths of light are focused at different distances from the lens as a result of which light passing through the prism bends and the color wavelengths are separated. This is called chromatic aberration.