26 3 points A step-up transformer has 100 turns on the secondary coil and 18 turns on the primary. The input voltage is 4.5 V. What is the output voltage? Draw a diagram of the transformer, clearly in

Answer:

C. a disturbance that travels through a medium with a transfer of energy and without a transfer of matter

Explanation:

A wave is any disturbance that transfers energy from one location to the other via a substance called medium. It is important to note that a wave only conveys energy and not matter. For example, sound wave is a type of wave that carries sound energy from one place to another via mediums such as water, air etc.

Hence, according to this question, a wave can be described as a disturbance that travels through a medium with a transfer of energy and WITHOUT A TRANSFER OF MATTER.

Answer:

1 gram

Explanation:

Formula -- (density / mass)

3 x 3 x 3 = 27.

27g / 27 g =

=1

-I hope this helps, have a good day/night if so.

Answer:

letter B

none zero digit are significant figures

Answer:

if there isn't a shorting mechanism, the whole sets will be blown out several lamps and then shortened, the overall resistance of the remaining operating lamps will be decreased resulting in an increased working current that is adequate to blast the fuse

Answer:

A I think hope it helps!!

Answer: the tension in the first string is 25N and the tension in the second string is 43.3N.

Explanation:

             T1

             /\

            /  \

           /    \

          /60°  \

         /      \

        /        \

       /_________\

      O    5kg    T2

         30°

The present discussion considers the tensions T1 and T2 acting upon two strings, with a particle denoted as "O" possessing a mass of 5kg under scrutiny.

One may employ Newton's second law to calculate the magnitudes of the tensions present in a system, as it states that the overall force acting upon an object is proportional to the product of its mass and acceleration. In this instance, the particle remains at rest as the net force acting upon it is equal to zero. Henceforth, it follows that the equilibrium of tension in every string is contingent upon the equivocation of the weight of the particle along the corresponding string direction.

By means of trigonometry, it is feasible to ascertain the constituents of the particle's weight with respect to each directional axis.

  weight = m * g = 5kg * 10m/s^2 = 50N

  weight_x = weight * sin(30°) = 25N

  weight_y = weight * sin(60°) = 43.3N

"Gamma rays" is the name that we call the shortest of all electromagnetic waves.  They're shorter than radio waves, microwaves, infrared waves, heat waves, visible light waves, ultraviolet waves, and X-rays.  They extend all the way down to waves that are as short as the distance across an atom.

Being so short, they carry lots of energy.  They can penetrate many materials, and they can damage living cells and DNA.  They're dangerous.

The sun puts out a lot of gamma radiation.  The atmosphere (air) filters out a lot of it, otherwise there couldn't even be any life on Earth.  

As soon as astronauts fly out of the atmosphere, they need a lot of shielding from gamma rays.

You know the precautions we take when we're around X-rays.  The same precautions apply around gamma rays, only a lot more so.

It's only in the past several years that we've learned how to MAKE gamma rays without blowing things up.  Also, how to control them, and how to use them for medical and industrial applications.

Explanation:

Gamma rays are ionizing electromagnetic radiation, observed by the decay of an atomic nucleus.

Uses of gamma rays :

Answer:

Moving electrons by cringing the object near another charged object ... This means that there is a different number of protons and electrons ... the attraction or repulsive electrostatic force between positive and negative charges ... the amount of charge on the particle and the distance between the particles ... fixed in position.ation:

Answer:We can solve this problem using the kinematic equations of motion for projectile motion.

Let's assume that the projectile is fired from the top of the cliff with an initial horizontal velocity of v₀, and that the only force acting on the projectile is the force due to gravity. The horizontal velocity remains constant throughout the motion, while the vertical velocity changes due to the acceleration due to gravity.

From the problem statement, we know that the time of flight of the projectile is 4 seconds and the horizontal displacement is 2 km (2000 m). We also know that the initial vertical velocity is zero, and we want to find the height of the cliff.

Using the kinematic equation for vertical displacement, we can write:

h = v₀y * t + 0.5 * g * t^2

where h is the height of the cliff, v₀y is the initial vertical velocity (which is zero in this case), t is the time of flight, and g is the acceleration due to gravity (-9.81 m/s^2).

Using the kinematic equation for horizontal displacement, we can write:

d = v₀x * t

where d is the horizontal displacement and v₀x is the initial horizontal velocity.

Since the projectile is fired horizontally from the top of the cliff, its initial height is the height of the cliff. We can substitute the expressions for h and v₀x from the above equations into the horizontal displacement equation to get:

d = v₀x * t = (h / t) * t = h

Thus, we can equate the expressions for horizontal displacement to get:

h = d = 2000 m

Finally, we can substitute this value of h and the given values of t and g into the vertical displacement equation to get:

h = 0 + 0.5 * (-9.81 m/s^2) * (4 s)^2 = 78.48 m

Therefore, the height of the cliff is approximately 78.48 meters.

Explanation:

The height of the cliff can be found using the equations of motion for a projectile. Since the projectile is fired horizontally, its initial vertical velocity is zero. The only force acting on the projectile is gravity, so the acceleration is constant and equal to -9.81 m/s².

Let h be the height of the cliff, and d be the horizontal distance traveled by the projectile. We can use the following equations:

d = v₀t

h = 1/2gt²

where v₀ is the initial horizontal velocity of the projectile and t is the time of flight.

From the given information, we know that d = 2 km = 2000 m, and t = 4 s.

Substituting these values, we get:

2000 m = v₀ × 4 s

v₀ = 500 m/s

Now, we can use the equation for h to find the height of the cliff:

h = 1/2 × 9.81 m/s² × (4 s)²

h = 78.48 m

Therefore, the height of the cliff is approximately 78.48 m.

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The mistake that Dominic made is that C. Although it is possible to have more than one state, it is also possible to have only one state

A mixture in chemistry is a material composed of two or more simpler components that are not chemically linked.

Individual substances retain their properties in a mixture, but their properties may change if they form a compound; when mixed, individual substances retain their properties in a mixture, but their properties may change if they form a compound.

When matter is mixed, such as with clouds, it can take on characteristics from various states. As a result, while it is possible to have more than one state, it is also possible to have only one state.

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Answer:

A) T1 = 566 k = 293°C

B) T2 = 1132 k = 859°C

Explanation:

A)

The average kinetic energy of the molecules of an ideal gas is givwn by the formula:

K.E = (3/2)KT

where,

K.E = Average Kinetic Energy

K = Boltzman Constant

T = Absolute Temperature

At 10°C:

K.E = K10

T = 10°C + 273 = 283 K

Therefore,

K10 = (3/2)(K)(283)

FOR TWICE VALUE OF K10:

T = T1

Therefore,

2 K10 = (3/2)(K)(T1)

using the value of K10:

2(3/2)(K)(283) = (3/2)(K)(T1)

T1 = 566 k = 293°C

B)

The average kinetic energy of the molecules of an ideal gas is given by the formula:

K.E = (3/2)KT

but K.E is also given by:

K.E = (1/2)(m)(vrms)²

Therefore,

(3/2)KT = (1/2)(m)(vrms)²

vrms = √(3KT/m)

where,

vrms = Root Mean Square Velocity of Molecule

K = Boltzman Constant

T = Absolute Temperature

m = mass

At

T = 10°C + 273 = 283 K

vrms = √[3K(283)/m]

FOR TWICE VALUE OF vrms:

T = T2

Therefore,

2 vrms = √(3KT2/m)

using the value of vrms:

2√[3K(283)/m] = √(3KT2/m)

2√283 = √T2

Squaring on both sides:

(4)(283) = T2

T2 = 1132 k = 859°C

A) The temperature at which the average kinetic energy will have a value of 2K10 is; T1 = 293 °C

B) The temperature at which the molecules have twice the rms speed, 2vrms is; T2 = 859 °C

A) We are given;

Initial temperature; T = 10°C = 283 K

Initial kinetic energy; KE = K10

Final kinetic energy; KE1 = 2K10

Now,formula for average kinetic energy of the molecules of an ideal gas is given as;

KE = (3/2)kT

Where;

k is Boltzmann constant

T is temperature

We are told that in the second case, KE = 2K10. Thus;

2K10 = (3/2)kT1

K10 = ¾kT1 - - - (eq 2)

In the first instance, we have;

K10 = (3/2)kT - - - (eq 1)

Put (3/2)kT for K10 in eq 2 to get;

(3/2)kT = ¾kT1

k will cancel out to get;

(3/2)T = ¾T1

Make T1 the subject to get;

T1 = 2T

Thus;

T1 = 2 × 283

T1 = 566 K

Converting to °C gives;

T1 = 293 °C

B) We want to find the temperature T2 (in degrees Celsius) at which the molecules will have twice the rms speed, 2v_rms.

Formula for kinetic energy is also;

KE = ½mv²

Thus;

½m(v_rms)² = (3/2)kT

v_rms = √(3kT/m) - - - (eq 1)

When rms speed is 2v_rms, we have;

½m(2v_rms)² = (3/2)kT2

v_rms = √(¾kT2/m) - - - (eq 2)

Thus;

√(3kT/m) = √(¾kT2/m)

Square both sides to get;

(3kT/m) = (¾kT2/m)

4T = T2

T2 = 283 × 4

T2 = 1132 K

Converting to °C gives;

T2 = 859 °C

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Answer:

B transformer

Answer:

it will be TRANSFORMER

Explanation:

TRANSFORMERS have step up (to increase voltage) and step down (to decrease the voltage ) . these features are acheived bcoz transformer has two coils arranged together.

The movement of the piston in response to the heating of the ideal gas can be explained through the kinetic theory of gases. The kinetic theory explains the behavior of gases in terms of the motion of their microscopic particles, such as atoms or molecules.

When the temperature of the gas is increased, the average kinetic energy of the gas particles also increases. This means that the gas particles move faster and collide more frequently with the walls of the container. As a result, the pressure of the gas increases, pushing the piston upwards.

The movement of the piston is a consequence of the gas particles exerting a force on it as they collide with it. The force exerted by each gas particle may be small, but the collective effect of all the collisions results in a net force on the piston that causes it to move upwards.

In summary, the movement of the piston in response to the heating of the ideal gas is due to an increase in the average kinetic energy of the gas particles, resulting in more frequent collisions with the walls of the container and a higher pressure that pushes the piston upwards.

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The kinetic theory of gases helps explain the movement of the piston in response to the heating of the ideal gas. The mobility of small particles in gases, such as atoms or molecules, is explained by the kinetic theory.

The average kinetic energy of the gas particles increases as the temperature of the gas rises. This implies that the gas particles travel quicker and clash with the container's walls more often. As a result, the gas pressure rises, forcing the piston upwards.

The piston moves as a result of the force exerted by the gas particles when they clash with it. Although the force exerted by each gas particle is modest, the cumulative impact of all the collisions results in a net force on the piston, causing it to rise. This results in a net force on the piston that causes it to move upwards.

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Answer:

A = [m/s]

B = [m/s²]

Explanation:

Assuming that V has SI units of m/s, then A and BT must also have units of m/s.

A = [m/s]

BT = [m/s]

Since T has SI units of s:

B [s] = [m/s]

B = [m/s²]

You can prevent a mask from fogging under water by lowering the surface tension of the water.

Surface tension is the measure of how strongly the molecules of a liquid are attracted to each other at the surface.

When the surface tension of water is high, it causes water molecules to form a cohesive layer, which can trap air and lead to fogging on surfaces like a diving mask. To prevent this, an anti-fog solution or spray can be applied to the inside of the mask's lenses.

These solutions work by reducing the surface tension of the water droplets that form on the lens, allowing them to spread out and form a thin, uniform layer that is less likely to fog up.

A well-fitting mask can also help prevent water from seeping in, which can contribute to fogging.

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Explanation of how to solve a problem using the method of substitution. Please provide the problem that you need help with so that I can provide a detailed explanation.

Here is the general process for solving a problem using the method of substitution.

Step 1: Identify the function that can be expressed in terms of the other function.

Step 2: Express one of the variables in terms of the other by rearranging the equation.

Step 3: Substitute the expression for the variable in terms of the other variable into the other equation.

Step 4: Simplify the equation by combining like terms and solve for the remaining variable.

Step 5: Use the value of one of the variables to find the value of the other variable.

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Answer:

D

Explanation:

At 66.5 degrees north of the equator, the sun's rays will be less direct ( the sun will not be as high in the sky)

We are asked to determine the distance between crest of a sound wave that has a frequency of 440 Hz. To do that we will determine the wavelength using the following formula:

Where:

The speed of sound at 20°C is equal to:

Now, we substitute the values:

Solving the operations:

Therefore, the distance from crest to crest is 0.78 meters.

Now, we are asked to determine the time it takes the string to go from the crest to the trough. To do that we will determine the period first using the following formula:

Now, we substitute the frequency:

Now, since the time it takes to go to crest to trough is half the time it takes the wave to go from crest to crest we divide the result by two:

Therefore, the time is 0.0012 seconds.

Answer:

hulk smash

Explanation:

hulk smash

All solid

objects

do not bend or change

shape

in a

collision

because of their hard structure.

Why do objects change shape in a collision?

The forces being appealed to both

objects

in a

collision

cause changes in the

shape

of the

colliding objects

because the force required will cause the objects to wrap temporarily or permanently.

In a

collision

between two

objects

, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up as well as put force on the other

object

which lead to lower its speed or stop it.

So we can conclude that In a

collision

, an

object experience

a force for a specific amount of time and change occurs in it's structure.

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The driver reaction times of oncoming vehicles would need to be shortened to an average of approximately 1.018 seconds for the probability of an accident to equal 0.20.

Practice Problem 5.2 refers to a situation where a driver needs to react within 1 second to avoid an accident, but the actual reaction time is normally distributed with a mean of 1.25 seconds and a standard deviation of 0.2 seconds.

To calculate the required shortening of driver reaction times for the probability of an accident to equal 0.20, we can use the inverse normal distribution function.

First, we need to find the z-score corresponding to a probability of 0.20. Using a standard normal distribution table or calculator, we find that the z-score is approximately -0.84.

Next, we can use the formula for converting a normally distributed variable to a standard normal variable:

z = (x - μ) / σ

where z is the z-score, x is the value of the variable we want to convert, μ is the mean, and σ is the standard deviation.

We want to find the new mean reaction time (x) that corresponds to a z-score of -0.84 and keeps the probability of an accident at 0.20:

-0.84 = (x - 1.25) / 0.2

Solving for x, we get:

x = -0.84 * 0.2 + 1.25 = 1.018 seconds

Therefore, the driver reaction times of oncoming vehicles would need to be shortened to an average of approximately 1.018 seconds for the probability of an accident to equal 0.20.

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Consider the conditions in Practice Problem 5.2. How short would the driver reaction times of oncoming vehicles have to be for the probability of an accident to equal 0.20?

The car's speed at 10 s would be 20 m/s, and the final speed would be 40 m/s.

During the first 20 s, the car accelerates at a rate of 2 m/s², so its speed increases linearly. We can calculate the final speed at 20 s as follows:

a = 2 m/s²

t = 20 s

v = a * t = 2 m/s² * 20 s = 40 m/s

From 20 s to 60 s, the car continues at a constant speed, so the graph is a horizontal line at 40 m/s.

Therefore, the car's speed at 10 s is:

t = 10 s

v = a * t = 2 m/s² * 10 s = 20 m/s

And its final speed is 40 m/s

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Answer:

217 N

Explanation:

Answer:217N

Explanation:

The true of an image produced by this mirror will be 2.5 times smaller and virtual. Option C is correct.

When light beams from an object reflect off a mirror, they intersect with the picture of that thing called an image. Real and virtual images are the two sorts of images.

The ratio of xi to xo for a certain mirror is 2.5;

\(\rm \frac{x_i}{x_0} =2.5 \\\ x_i=2.5 x_0\)

Where,

\(\rm x_0\) is the true of an image produced by this mirror.

The true of an image produced by this mirror will be 2.5 times smaller and virtual.

Hence,option C is correct.

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When Dr. Hewitt pulls the tablecloth, the items on the tablecloth move horizontally in the same direction as the tablecloth. This phenomenon is due to Newton's First Law of Motion. Correct option is a.

Newton's First Law of Motion is also known as the law of inertia.  Objects at rest tend to stay at rest, and objects in motion tend to stay in motion with the same speed and direction, unless acted upon by an external force. In this case, the tablecloth is pulled quickly, causing it to move out from under the objects on the table.

However, the objects themselves have inertia and tend to resist changes in their motion. As a result, the objects on the tablecloth tend to continue moving in the same horizontal direction as they were before, even though the tablecloth has been pulled out from under them.

This effect is most noticeable with objects that are smooth and flat, such as dishes and glasses, and less noticeable with objects that are irregularly shaped or have a higher coefficient of friction with the tablecloth.

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Answer:

Sodium ions

Explanation:

Please click crown below my answer.

Based on the information provided, Ashley having a master's degree alone does not exclude any specific occupation or role. Ashley can potentially hold any job or profession, as having a master's degree is compatible with various career paths.

Having a master's degree does not exclude Ashley from any particular occupation or role. A master's degree is a postgraduate academic degree that can be pursued in various fields, including but not limited to business, education, arts, sciences, engineering, and more. The specific occupation or role that Ashley may hold would depend on the subject area of the master's degree and their individual interests, skills, and career choices. It is important to note that individuals with master's degrees can pursue a wide range of careers, including research, academia, management, consulting, healthcare, government, and many others, making it difficult to determine Ashley's specific occupation solely based on having a master's degree.

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Answer:

Solution given:

velocity=40cm/s

wave length=5cm

we have

frequency =velocity/wavelength=40/5=8hertz.

the frequency of the wave is 8 hertz.

The amount of substance affects the total energy through the concept of molar heat capacity. Molar heat capacity is defined as the amount of heat required to raise the temperature of one mole of a substance by one degree Celsius. Therefore, the more substance there is, the more heat energy is required to raise its temperature.

For example, if we have one mole of a substance, it will require a certain amount of energy to raise its temperature by one degree Celsius. However, if we have two moles of the same substance, it will require twice as much energy to raise the temperature of the larger amount by the same one degree Celsius.

Additionally, the amount of substance can affect the total energy through the concept of specific heat capacity. Specific heat capacity is defined as the amount of heat required to raise the temperature of one unit of mass (usually one gram) of a substance by one degree Celsius. Therefore, if we have more mass of a substance, it will require more energy to raise the temperature of the larger amount by the same one degree Celsius.

In summary, the amount of substance affects the total energy through the concepts of molar heat capacity and specific heat capacity, which determine how much energy is required to raise the temperature of a given amount of substance.

The Metonic cycle is a period of almost exactly 19 years after which the lunar phases recur at the same time of the year.

The Metonic cycle is defined as ,235 synodic months is just 2 hours, 4 minutes and 58 seconds longer than 19 tropical years.

In Athens, at 5th century BC, give the cycle to be a whole number of days, 6,940. Using these whole numbers facilitates the construction of a lunisolar calendar.

A tropical year is longer than 12 lunar months and shorter than 13 of them. The arithmetic representation of  12×12 + 7×13 = 235 allows it to be seen that a combination of 12 "short" years (12 months) and 7 "long" years (13 months) will be almost  equal to 19 solar years.

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