a transformer has 408 turns in the primary coil and 34 turns in the secondary coil. a) if an ac voltage of 120 v is across the primary coil, what will be the voltage on the secondary coil? tries 0/100 b) if the initial ac current is 4.50 a, what is the output current?
Answers
The output current is 0.38A and the voltage on the secondary coil is 10V in a transformer.
a) Using the formula for transformer voltage ratio, we can find the voltage on the secondary coil:
V1/V2 = N1/N2
Where V1 is the voltage on the primary coil (120V), V2 is the voltage on the secondary coil (unknown), N1 is the number of turns in the primary coil (408), and N2 is the number of turns in the secondary coil (34).
120/V2 = 408/34
Simplifying this equation, we get:
V2 = (34/408) x 120V = 10V
Therefore, the voltage on the secondary coil is 10V.
b) Using the formula for transformer current ratio, we can find the output current:
I2/I1 = N1/N2
Where I1 is the current on the primary coil (4.50A), I2 is the current on the secondary coil (unknown), N1 is the number of turns in the primary coil (408), and N2 is the number of turns in the secondary coil (34).
I2/4.50A = 34/408
Simplifying this equation, we get:
I2 = (34/408) x 4.50A = 0.38A (rounded to two decimal places)
Therefore, the output current is 0.38A.
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Related Questions
is potential energy and kinetic energy real or is it theoretical and is used to explain how thing work? if it is real than where is potential energy stored? Because energy has to be stored somewhere, like in a plant the energy of the sun is stored in its leaves.
Answers
In its American colonies, Spain helped the Catholic Church meet its goal of
finding gold.
gaining territory.
converting people.
achieving glory.
This is from ed please help thank you
Answers
Answer: Converting people
Explanation: In Spanish colonies such as Florida, Spanish moved up into the other states to spread their christianity and were successful with doing so.
According to the law of conservation of matter, we know that the total number of atoms does not change in a chemical reaction and thus mass is conserved. The reactant in this model is hydrogen peroxide. Hydrogen peroxide decomposes to produce water and oxygen gas. How many water molecules must be added to complete this model?
Answers
Answer:
In a chemical reaction the total mass of all the substances taking part in the reaction remains the same. Also, the number of atoms in a reaction remains the same. Mass cannot be created or destroyed in a chemical reaction.
Explanation:
How difficult or easy is it to stay focused on your schoolwork during a pandemic? What advice will you give your fellow classmate to stay positive and focus on their schoolwork during the pandemic
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You weigh 580 N on Earth. If you were to go to Mars, where its gravitational pull is 3 . 7 11 m /s 2 , what would you weigh? (Hint: gravity on Earth is 9.8 m /s 2 .
Answers
Answer:
59.18 kg
Explanation:
use f=ma
f= 580 N
a = 9.8 m/s 2
weigh(m) doesn't change only force(F) changes
Answer: 219.6N
Explanation:
Find the mass of this person by dividing his weight by the accelleration. Remember, F=ma
580 = m*9.8
m = 59.18kg
Then multiply the mass by the new gravitational acceleration on Mars.
59.18*3.711 = 219.6N
A spring with a cart at its end vibrates at frequency 5.0Hz\;Hz .
A. Determine the period of vibration.
B. Determine the frequency if the cart's mass is doubled while the spring constant remains unchanged.
C. Determine the frequency if the spring constant doubles while the cart's mass remains the same.
Answers
A. The period of vibration is the time it takes for one complete oscillation to occur. It is the reciprocal of the frequency. The period of vibration can be calculated using the formula:
Period = 1/Frequency
Given that the frequency of vibration is 5.0Hz, the period of vibration is:
Period = 1/5.0 s
Period = 0.2 s
B. If the cart's mass is doubled while the spring constant remains unchanged, the frequency of vibration will not change. This is because frequency is dependent on the spring constant and the mass of the cart and not on the amplitude of the oscillation.
C. If the spring constant doubles while the cart's mass remains the same, the frequency of vibration will also double. This is because frequency is directly proportional to the square root of the spring constant. Therefore, doubling the spring constant would lead to an increase in the frequency of vibration by a factor of square root of 2.
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The feeling of being pushed into your seat when a car suddenly accelerates is an example of intertia
O True
O False
Answers
Answer:
it is true
Explanation:
because the backward force you feel when your car accelerates is caused by your body's inertia
A skater increases her velocity from 4.0 m/s to 10.0 m/s in 3.0 seconds. What is the skater’s acceleration?
Answers
Answer:
answer is 2 ms-2
Explanation:
v= 10.0 m/s
u=4.0 m/s
t=3.0 seconds
a=?
from equation, v= u+at
10.0 m/s =4.0 m/s + a × 3s
6 m/s. = 3a
6/3 = a
2.0 m/s-2 = a
A 0. 06 kg ball is attached to the end of a 0. 30 m long string. The ball is spun around a circle with a period of 0. 90s. What is the tension force in the string?
Answers
The tension force in the string is 3.84 N.
To find the tension force in the string, we can use the centripetal force equation:
F = (m * v²) / r
Where:
F is the centripetal force (tension force in this case)
m is the mass of the ball
v is the velocity of the ball
r is the radius of the circular path
In this scenario, the ball is moving in a circular path with a period of 0.90s. The period is the time it takes for the ball to complete one full revolution. The velocity (v) can be calculated by dividing the circumference of the circle by the period:
v = 2πr / T
Where:
T is the period
r is the radius of the circular path
Given that the radius (r) is 0.30m and the period (T) is 0.90s, we can calculate the velocity:
v = (2π * 0.30) / 0.90
Once we have the velocity, we can substitute the values into the centripetal force equation:
F = (0.06 * ([(2π * 0.30) / 0.90])²) / 0.30
By solving this equation, we find that the tension force in the string is approximately 3.84 N.
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How can you use the Frank-Starling mechanism to explain why having bigger muscles would contribute to higher VO2 max
Answers
The Frank-Starling mechanism refers to the relationship between stroke volume (the amount of blood pumped by the heart per beat) and end-diastolic volume (the amount of blood in the ventricles at the end of diastole, when they are most filled).
According to this mechanism, as the end-diastolic volume increases, the strength of the cardiac muscle fibers increases as well, leading to a greater force of contraction and therefore a larger stroke volume. This relationship explains why a bigger heart can pump more blood per beat and why athletes who engage in endurance training can have larger hearts with greater stroke volumes.
In terms of muscle size and VO2 max, the same mechanism applies. Larger muscles have a greater capillary density, which means that they have a greater number of blood vessels that deliver oxygen and nutrients to the muscle tissue. This increased blood flow leads to a greater end-diastolic volume in the heart, which in turn increases the strength of contraction and stroke volume. As a result, larger muscles can utilize more oxygen and nutrients per unit time and produce more energy, leading to a higher VO2 max.
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Which one????? I'll mark brainlest
Answers
The nucleus of an atom attracts the electrons which orbit around it. This is what stops an atom from falling apart. Explain why the nucleus and electrons attract each other.
Answers
Answer: The answer is electricity and magnetism.
Explanation: The atom's center, or nucleus, is positively charged and the electrons that whirl around this nucleus are negatively charged, so they attract each other. The reason the force is strong is because the atom is so small.
2. Does a solar cell always maintain the potential across its terminals
constant? Discuss.
Answers
Answer:
hi
Explanation:
How are engineers creating clothing that can charge your cell phone. Explain the science behind their innovation.
Answers
Answer:
By the use of carbon nanotubes as the clothing material.
Explanation:
Carbon nanotubes is a technology designed by engineers that could make charging of the cell of a phone possible. It has some some required properties like it is strong, conductive and heat-resistant which are suitable for the purpose.
This technology which involves a progressive dipping of a pure cotton material into nafion polymer, then in a chemical solution of carbon nanotubes and finally in polystyrene until it becomes saturated and have a conductive property. The conductive cotton can be used to make such cloths which becomes conductive and produces some electromagnetic waves when there is a contact with sweat or fluid from the body. The waves generated can be used to charge a cell phone through radiation interaction.
FILL THE BLANK. The process by which an individual pursues important objectives by setting goals and monitoring progress is called self-_____.
Answers
The process by which an individual pursues important objectives by setting goals and monitoring progress is called self-regulation.
Self-regulation involves the ability to manage one's thoughts, emotions, and behaviors in order to achieve desired outcomes. It requires setting specific, measurable, attainable, relevant, and time-bound (SMART) goals and then actively monitoring and adjusting one's actions to stay on track.
Self-regulation encompasses various cognitive and behavioral processes, such as self-awareness, self-monitoring, self-control, and self-reflection. It involves being disciplined, persevering through challenges, and making adjustments when necessary.
By engaging in self-regulation, individuals can enhance their motivation, focus, and performance, leading to greater success in reaching their objectives. Self-regulation is a valuable skill that can be developed and honed through practice and self-awareness.
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About 50,000 years ago, in an area located outside Flagstaff, Arizona, a giant 4.5 107-kg meteor fell and struck Earth, leaving a 180-m-deep hole now known as Barringer crater. If the meteor was traveling at 20,000 m/s upon impact, with what average force did the meteor hit the earth?
Answers
Answer:
\(F_A =5.625*10^1^6N\)
Explanation:
From the question we are told that
50,000 years ago,
A giant 4.5 107-kg meteor
180-m-deep hole
20,000 m/s
Generally for this problem the energy change is given as
\(\triangle E=\frac{1}{2} mv^2 +mgd\)
Having the potential and kinetic energy in place
Mathematically solving for Average force\(F_A\)
\(\triangle E=F_a*d\)
\(F_A =\frac{1/2* 4.5*10^7(20,000)^2-kg+4.5*10^7*9.81*160}{160}\)
Therefore Average force \(F_A\) is given by
\(F_A =5.625*10^1^6N\)
Using F=mXa
1.
Maria's bicycle has a mass of 18.0 kg. What is the net force needed to attain the
acceleration of 1.62 m/s2?
Answers
Answer:
29.16 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 18 × 1.62
We have the final answer as
29.16 NHope this helps you
Compared to the inertia of a 2.0 kg ball, the inertia of a 4.0 kg ball is
A) Half as great
O B) twice as great
the same
OD) four times as great
Answers
11. In a new science fiction movie an enemy spaceship explodes. Will an observer on a nearby
moon hear the explosion, see the explosion, or both? Explain
Answers
Answer:
Sound is transmitted by longitudinal waves thru air - the observer cannot hear the explosion because no air is present between the moon and the ship
Light is transmitted by electromagnetic waves so the light from the explosion can travel between the moon and the observer.
Your twin sister (who has the same weight as you) and you decided to go up to a very tall building. You take the elevator straight up. Your twin sister decide to walk up the spiral stairway. Compare the gravitational potential energy of you and your sister, after you both reach the top. assuming that you and your friend have equal masses.
Answers
Both of you have the same amount of potential energy since your masses are the same.
Define potential energy?In physics, potential energy is the power that a substance retains as a result of its position in respect to other things, internal pressures, electric charge, or other substances. Potential energy is a type of stored energy that depends on the interactions of various system elements.
The potential energy of a spring rises when it is crushed or stretched. The potential energy of a steel ball increases if it is raised above the ground as opposed to falling to it. Potential energy is the name for the energy that exists in everything that is raised from rest and can be released at a later time.
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As engineers for a company that manufactures fire trucks for airports, you must assess whether the acceleration of the truck is sufficient to put out fires. It must be assumed that the truck can brake with a deceleration of 5 m/s2, and that a test of the truck's responsiveness consists of reaching the point of accident as quickly as possible, 400 m away.
Your group is to develop a performance protocol for the truck test, and based on real data from fire trucks, say whether a truck with a more powerful engine would be recommended, considering both the possible decrease in response time (arrival to the point of accident) such as the increase in the costs of the new engine (or truck) and its maintenance. It is recommended that, due to such costs, in case you decide on a more powerful truck, such power does not exceed 10% of the initial one.
Answers
A performance protocol for the truck test can be developed by considering the following factors: the distance to the point of accident, the truck's acceleration, and its deceleration.
Based on real data from fire trucks, it is not recommended to purchase a truck with a more powerful engine, as the decrease in response time would not be significant enough to justify the increased cost.
The performance protocol for the truck test can be developed by considering the following factors:
The distance to the point of accident: This is the maximum distance that the truck needs to travel to reach the point of accident.
The truck's acceleration: This is the rate at which the truck can increase its speed.
The truck's deceleration: This is the rate at which the truck can decrease its speed.
The goal of the performance protocol is to minimize the response time, which is the time it takes the truck to reach the point of accident. The response time can be calculated using the following formula:
response time = distance / acceleration + distance / deceleration
For a given distance, the response time will be minimized when the acceleration is maximized and the deceleration is minimized.
Based on real data from fire trucks, it is not recommended to purchase a truck with a more powerful engine.
The increase in acceleration that would be achieved by a more powerful engine would not be significant enough to justify the increased cost. In addition, the increased power would also increase the fuel consumption of the truck.
Therefore, it is recommended to stick with the current truck and not purchase a truck with a more powerful engine.
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Which nuclear equation represents a spontaneous decay?.
Answers
Spontaneous fission is a nuclear equation represents a spontaneous decay.
Which nuclear equation represents a spontaneous decay?Spontaneous fission is another type of radioactive decay. In this process, the nucleus will split into two parts and free neutrons with the release of large amount of energy.
So we can conclude that spontaneous fission is a nuclear equation represents a spontaneous decay.
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A device that both emits and receives sound waves is traveling at 80 km/h. The emitted waves have a frequency of 700 Hz. If the waves are reflected off a stationary flat surface in front of the device, what frequency is detected by the device
Answers
This frequency description directs us to the simplest frequency formula:
f = 1 / T
Therefore, the frequency detected by the device exist 700 = 1 / 80.
What is the frequency?
The number of periods or cycles per second exists named frequency. The SI unit for frequency exists the hertz (Hz). One hertz exists identical to one cycle per second.
Frequency exists the number of events of a repeating occurrence per unit of time. It exists also sometimes directed to temporal frequency to highlight the difference in spatial frequency and expected frequency to highlight the difference in angular frequency.
This frequency description directs us to the simplest frequency formula:
f = 1 / T
Let, f represents frequency and T stands for the time it brings to satisfy one wave process calculated in seconds. The SI frequency unit exists as Hertz (Hz), which equals 1/s (one cycle per second).
Let the equation of frequency be,
f = 1 / T
Given:
Sound waves exists traveling, T = 80 km/h.
frequency = 700 Hz
Substitute the values in the above formula, we get
700 = 1 / 80
Therefore, the frequency detected by the device exist 700 = 1 / 80.
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Given a dry glass rod and a silk cloth, explain how you would determine the type of charge on an electroscope
Answers
To determine the type of charge on an electroscope using a dry glass rod and a silk cloth:
Rub the dry glass rod with the silk cloth. If the electroscope's leaves repel each other, the glass rod carries a positive charge. If the leaves attract each other, the glass rod carries a negative charge.
When the glass rod is rubbed with the silk cloth, electrons are transferred between them, resulting in a charge separation. If the glass rod acquires extra electrons from the silk cloth, it becomes negatively charged. When the negatively charged glass rod is brought near the electroscope, the electrons in the electroscope's leaves are repelled, causing them to move apart, indicating a negative charge. On the other hand, if the glass rod loses electrons to the silk cloth, it becomes positively charged. When the positively charged glass rod is brought near the electroscope, the electrons in the electroscope's leaves are attracted, causing them to move closer together, indicating a positive charge.
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How many sulfur atoms are there in 25 molecules c4h4s2?.
Answers
two waves have the same speed. the first has twice the frequency of the second. compare the wavelengths of the two waves. 1. the first has twice the wavelength of the second.
Answers
The first wave has half the wavelength of the second wave.
Two waves have the same speed, and the first wave has twice the frequency of the second wave.
According to the wave equation, speed = frequency × wavelength.
Since both waves have the same speed, and the first wave has twice the frequency, it must have half the wavelength of the second wave to maintain the same speed.
Summary: When comparing the wavelengths of two waves with the same speed but different frequencies, the wave with the higher frequency will have a shorter wavelength. In this case, the first wave has half the wavelength of the second wave.
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will give 20 points plus brainlist
Answers
Answer:
c
Explanation:
beacause when in a small pack it means small
Formula for conservation of internal kinetic energy (works for elastic collisions) is: ΣKEi=ΣKEf (use 1/2mv^2 for each object in the system) TRUE OR FALSE
Answers
The given statement "Formula for conservation of internal kinetic energy (works for elastic collisions) is: ΣKEi=ΣKEf (use 1/2mv² for each object in the system)" is TRUE because the initial kinetic energy of the system is equal to the final kinetic energy of the system.
What's the formula for conservation of internal kinetic energyThe formula for conservation of internal kinetic energy states that the initial kinetic energy of a system is equal to the final kinetic energy of the same system in an elastic collision.
This formula can be expressed as ΣKEi=ΣKEf, where ΣKEi is the sum of the initial kinetic energy of all objects in the system, and ΣKEf is the sum of the final kinetic energy of all objects in the system.
In this formula, the mass and velocity of each object in the system are taken into account using the formula 1/2mv² for kinetic energy.
It is important to note that this formula only works for elastic collisions, where there is no loss of kinetic energy due to friction or other forces.
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A plate moves 200 m in 10,000 years. What is its rat in cm/year
Answers
Answer:
2cm/year
Explanation:
20000/10000=2cm/year
Consider the scenario of a small car hitting a large truck at rest from the side. Which statement is true?
The car exerts a greater force on the truck than the truck does on the car.
The truck exerts a greater force on the car than the car does on the truck.
The car exerts a force on the truck, and the truck exerts no force on the car.
The car and the truck exert equal forces on each other.
Answers
According to Newton's Third Law of Motion, the forces exerted by the car and the truck on each other when the car hits the large truck are equal. Despite the forces being equal, the truck, due to its larger mass, will experience less acceleration and appear to move less.
Explanation:The subject you're asking about is a fundamental concept in Physics, specifically Newton's Third Law of Motion. According to Newton's Third Law of Motion, when a car hits a large truck, the forces they exert on each other are equal. This law states that 'For every action, there is an equal and opposite reaction.' Therefore, the correct statement is, 'The car and the truck exert equal forces on each other.' However, because the truck has a much greater mass than the car, it will feel less acceleration and appear to move less, even though the force exerted on it is equal to that exerted by it on the car.
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