When a P = 690 W ideal (lossless) transformer is operated at full power with an rms input current of I1 = 2.6 A, it produces an rms output voltage of V2 = 8.3 V. What is the input voltage, in volts?
Answers
The input voltage is 265.38 volts for an ideal transformer (lossless) operated at full power with an rms input current of I1 = 2.6 A, producing an rms output voltage of V2 = 8.3 V.
When a P = 690 W ideal (lossless) transformer is operated at full power with an rms input current of I1 = 2.6 A, it produces an rms output voltage of V2 = 8.3 V.
The input voltage can be calculated using the relationship between the input power and input voltage.Input power of transformer = Output power of transformer690 = V2 × I2where V2 = 8.3 VThus, I2 = (690 W) / (8.3 V) = 83.13 AFor a lossless transformer, the input power is equal to the output power. Therefore,690 W = V1 × I1where I1 = 2.6 AV1 = (690 W) / (2.6 A) = 265.38 V .
Therefore, the input voltage is 265.38 volts.
In conclusion, the input voltage is 265.38 volts for an ideal transformer (lossless) operated at full power with an rms input current of I1 = 2.6 A, producing an rms output voltage of V2 = 8.3 V.
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Related Questions
Object A has a temperature of 3 T. It comes in contact with Object B, which has a temperature of 2 T. Which of the following is true?(1 point)
Answers
Here all all the answers took the test there all right
Both objects will have the same temperature, larger than T but smaller than 2T.
What is the thermodynamic equilibrium?A system in equilibrium if there is no change in temperature after long time.
Assuming the system of two objects with the temperatures 3T and 2T.
When we put them together, heat transfer from the hotter object to the colder one takes place, until both of them have the same temperature
Also, the object with temperature 3T loses temperature, while the object with temperature 2T increases its temperature,
2T < T < 3T
Thus, both objects will have the same temperature, which is larger than 2T but smaller than 3T.
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If you toss a ball straight upward at 40 m/s with no air resistance, what will be its speed 7 seconds later?
Answers
The speed of the ball seven seconds later is 28.6 m/s.
What is the speed of the ball?We have the following information;
initial velocity of the ball = 40 m/s
time taken = 7 seconds
Acceleration of the ball = 9.8 m/s^2
Now;
v = u - gt (the ball is moving upwards)
v = 40 - (9.8 * 7)
v = 28.6 m/s
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Question 8
If a cheetah can run at a speed of 100 km/h for the initial 500 m of its chase, h
much time would it take to catch its prey that is at a distance of 100 m?
O 1.5 s
O 2.3s
O 3.6s
O 4.8s
Answers
Answer:
3.6 s
Explanation:
100 km/hr =27.77 m/s
100/27.77=3.6 sec
to calculate the radiation pressure on a highly polished metal surface, it would be best to use which approximation?
Answers
To calculate the radiation pressure on a highly polished metal surface, the most appropriate approximation to use is the small-angle approximation.
Radiation pressure refers to the pressure produced when electromagnetic radiation is absorbed or reflected by a surface. A highly polished metal surface is highly reflective, and therefore is expected to produce high radiation pressure.
The small-angle approximation is the assumption that the angle of incidence is small enough such that the sine of the angle is equal to the angle itself. This approximation is particularly useful in situations where the angle of incidence is small relative to 1 radian or less. This approximation can be used to calculate radiation pressure on highly polished metal surfaces because the angle of incidence is usually small (typically less than 1 radian), and therefore can be approximated using the small-angle approximation.
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Se dispara una bala con una velocidad de v = 300[m/s] contra un cascarón esférico de papel que gira con MCU respecto a un eje vertical. Sabiendo que el radio del cascarón es de 10[cm]. Calcular la rapidez angular mínima que deberá girar el cascarón para que el proyectil haga únicamente un agujero. La dirección del movimiento de la bala pasa por el centro de la esfera.
Answers
Answer:
w = 4.712 10⁻³ rad / s
Explanation:
For this exercise, the time it takes for the bullet to travel the distance of 2R must be equal to the time that the hole must travel half a circle.
Let's start by calculating the time it takes for the bullet, which is going at constant speed.
v = x / t
t = x / v
t = 2R / v
t = 2 0.10 / 300
t = 6.666 10⁻⁴ s
As they ask that a single hole is formed in this time, it must be rotated half a circle, that is, θ =π rad, for which we use the angular scientific relations, where the shell has constant angular velocity
w = θ / t
w = π / 6,666 10⁻⁴
w = 4.712 10⁻³ rad / s
what are the two properties of a vector?
Answers
Answer:
magnitude and direction
* Question Completion Status: Moving to another question will save this response. Question 29 Which one of the following statements is not true? (choose all apply) O UV radiation is a type of ionizing
Answers
One statement that is not true is that UV radiation is a type of electromagnetic radiation. It is also a type of ionizing radiation. UV radiation is actually a form of non-ionizing radiation.
UV radiation, or ultraviolet radiation, is a type of electromagnetic radiation that falls between visible light and X-rays on the electromagnetic spectrum. It is often categorized into three types: UVA, UVB, and UVC. Unlike ionizing radiation, such as X-rays and gamma rays, which have enough energy to remove tightly bound electrons from atoms or molecules, UV radiation lacks the necessary energy to ionize atoms or molecules. Instead, it primarily interacts with the outermost electrons of atoms or molecules, leading to chemical reactions and causing biological effects.
UV radiation is commonly associated with sunlight and has various effects on living organisms and materials. It can cause sunburn, premature aging of the skin, and an increased risk of skin cancer. Exposure to excessive UV radiation can also damage the eyes and impair the immune system. It is important to protect oneself from excessive UV exposure by wearing sunscreen, protective clothing, and sunglasses.
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06
In which diagram is the moment of the force the largest?
©
300 N
300N
300 N
lo
16 cm
A
B
16 cm
A: A
B: B
113
C: C
D: They are all the same
Answers
D
Explanation:
The are the same but difference
.Strictly speaking, the light that meets and passes through a pane of window glass _________.
*is not the same light that emerges
*gains energy
*is largely converted to heat in the glass
*is the same light that emerges
Answers
Strictly speaking, the light that meets and passes through a pane of window glass is not the same light that emerges. When light interacts with a pane of window glass, it undergoes several processes that result in its transformation.
As light enters the glass, it encounters the atoms or molecules within the material. These particles absorb and re-emit the incoming light through a process called scattering. This scattering causes a delay and a change in the direction of the light waves, effectively slowing them down.
Additionally, window glass is not perfectly transparent, and it absorbs a small fraction of the light passing through it. This absorption results in a conversion of some of the light's energy into thermal energy, which manifests as heat within the glass.
Due to these interactions, the light that eventually emerges from the other side of the glass is not exactly the same as the incident light. It has experienced scattering, a slight delay, and a partial conversion to heat energy.
However, the emerging light maintains the same general properties, such as its wavelength, color, and intensity. Hence, while it is not precisely the same light, it is a modified version of the original light that entered the glass.
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full answer = brainliest
Answers
Answer:
F = 2N
Explanation:
Moment of 3.0N = 3 × (90 - 50)
3×40
= 120Ncm
Moment of 2.0N = 2.0 × 30
= 60Ncm
Value of F = F × 30
= 30F
60 + 30F = 120
30F = 120 - 60
30F/30 = 60/30
F = 2N
A person is drawing water from a well, pulling up a bucket that weighs 4.50 kg, at a constant speed. What is the force exerted on the bucket by the rope?
Answers
Answer:
44.13015
Explanation:
use the 9.8067 newtons to 1 kg conversion
The force exerted on the bucket by the rope is 44.1 N.
What is force?
The definition of force in physics is: The push or pull on a massed object changes its velocity.
An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. A spring balance can be used to calculate the Force. The Newton is the SI unit of force.
Given parameters:
weighs of the bucket: M = 4.50 kg.
We know that acceleration due to gravity: g = 9.8 m/s².
Hence, gravitational force acting on the bucket in downwards = Mg
= 4.50 kg × 9.8 m/s²
= 44.1 N.
Hence, pulling up a bucket at a constant speed, the person have to exert 44.1 N force on the bucket by the rope so that it can nullify gravitational force acting on the bucket in downwards.
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Which choice correctly describes how light interacts with atoms in a material when the light is absorbed?
The atoms must have the same natural frequency as the light, allowing the atoms to vibrate at the same frequency. The atom collides with other atoms absorbing the energy and converting it to heat.
The atoms must vibrate at a frequency that is different from the frequency of ultraviolet light, which prevents ultraviolet light from getting through the material. The energy is absorbed.
The atoms must vibrate at a frequency that is different from the frequency of ultraviolet light. As the atoms vibrate, ultraviolet waves move through the material and are converted to visible light.
The atoms must have the same natural frequency as the light, allowing the atom to vibrate. Since the atoms share the same natural frequency, the energy can be absorbed without converting it into heat.
Answers
The atoms must have the same natural frequency as the light, allowing the atoms to vibrate at the same frequency. The atom collides with other atoms absorbing the energy and converting it to heat.
Interaction of light with atomsThe absorption of light by a particular material occurs when the frequency of the light wave matches the frequency at which electrons in the atoms of that material vibrate.
The asbroption of this light causes heat to be generated.
Thus, we can conclude that, the atoms must have the same natural frequency as the light, allowing the atoms to vibrate at the same frequency. The atom collides with other atoms absorbing the energy and converting it to heat.
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A current of 10 A moves through a circuit that contains multiple resistors in parallel. Which statement correctly describes the current through the resistors?
The current through all of the resistors will add up to 10 A.
The current through each resistor will be 10 A.
The current will be greatest through the resistor with the highest resistance.
The current will travel only through the resistor with the least resistance.
Answers
Answer:
The current through all of the resistors will add up to 10 A.
Explanation:
an electron, moving south, enters a magnetic field of certain strength. because of this field the electron curves upward. what is the direction of the magnetic field?
A) towards the east
B) towards the west
C) upward
D) towards the north
E) downward
Answers
When an electron that is moving south enters a magnetic field of a certain strength, it curves upwards. The direction of the magnetic field is downward. Thus, the correct option is E) downward.
What is a magnetic field?The magnetic field refers to the magnetic influence of electric currents and magnetic materials. The direction of the magnetic field is taken to be the direction of the force it would exert on a north-seeking compass needle.
A magnetic field can be produced by electric currents or magnetic materials. It surrounds and interacts with all magnetized bodies and magnetically charged particles, such as electrons and protons.
What causes the electron to curve upwards in the given scenario?The electron curves upwards due to the Lorentz force that arises due to the interaction between the magnetic field and the moving charge of the electron. The magnitude of the force experienced by the electron is proportional to the strength of the magnetic field and the velocity of the electron.
As the electron is moving south, the direction of the magnetic field must be downward to cause the electron to curve upward. Therefore, the correct option is E) downward.
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If 80,000 Joules of heat is absorbed by 210 grams of ice at 0°C, what happens to the ice?
It partially melts and stays at 0°C
It completely melts but stays at 0°C
It completely melts and has a final temperature of 11.2°C
It completely melts and has a final temperature of 22.4°C
It completely melts and has a final temperature of 33.6°C
Answers
Answer:
It completely melts and has a final temperature of 22.4°C
Explanation:
(I am very bad at explaining, I am not a teacher, I am a student but I had exact same question on my test so I wanted to help.)
Okay, well to find the Heat required to melt Ice, we have to use the equation:
Q=(m·cΔT)+(m·hf)
Q= HeatM= MassC= Specific heatΔT= Change in temperature. hf= heat fusionSo we can just plug in the values into the equation and see which one adds up too 80,000. (there is probably a better way i just did it this way)
For this situation, we know that:
Mass=210 gramsSpecific heat = 2.10 (I got this number 2.10 from the internet. The universal number for specific heat of ice is 2.10 J/g°C ) Change in temperature= 0 °C or 11.2 °C or 22.4 °C or 33.6 °C (all the answers) Heat fusion=334 (universal number for heat fusion of melting ice is 334)So we can just change the value of change and temperature and see which one equals 80,000.( I will bold the value of change in temperature.)
Q=(m·cΔT)+(m·hf)
(210g)*(2.10)*(0)+(210)*(334)=70140(210g)*(2.10)*(11.2)+(210)*(334)=75079.2(210g)*(2.10)*(22.4)+(210)*(334)=80018.4(210g)*(2.10)*(33.6)+(210)*(334)=84957.6So which one equals 80,000? Equation #3 with the temperature at 22.4 °C
So the answer would be It completely melts and has a final temperature of 22.4°C.
Hope this makes sense, again I am not a teacher I am so bad at explaining, but I did my best. ;)
1. How much work is done by a person if he lifts a load of 500 kg upto a height of 2m?
Answers
Explanation:
if we take g=9.8m/s^2
F=mg
m=500
F=500×9.8=4900N
h=2
so w=mgh
w=4900×2
=9800j
How much time does it take the cheetah to travel 500 meters, if its average speed is 70 meters per second?
Answers
l=500m
speed=70m/s
t=?
t=500/70=7.14s
please answer fast..........
Answers
Answer:
The correct answer is a. Subsonic
Hope this helps you^_^
Please mark as Brainliest.
An object with a mass of 2.0 kg accelerates 2.0 m/s 2when an unknown force is applied to it. What is the amount of force?
Answers
Answer:
4 N
Explanation:
mass = 2 kg
acceleration = 2 m/s^2
Force = mass * acceleration
= 2 *2
= 4 N
Please help!! :)
For this circuit, what will be the voltage drop across R1?
A. 21.3 V
B. 14.2 V
C. 45.0 V
D. 9.47 V
Answers
Answer:
Option D. 9.47 V
Explanation:
We'll begin by calculating the equivalent resistance of the circuit. This can be obtained as follow:
Resistor 1 (R₁) = 20 Ω
Resistor 2 (R₂) = 30 Ω
Resistor 3 (R₃) = 45 Ω
Equivalent Resistance (R) =?
R = R₁ + R₂ + R₃ (series connections)
R = 20 + 30 + 45
R = 95 Ω
Next, we shall determine the current in the circuit. This can be obtained as follow:
Voltage (V) = 45 V
Equivalent Resistance (R) = 95 Ω
Current (I) =?
V = IR
45 = I × 95
Divide both side by 95
I = 45 / 95
I = 0.4737 A
Finally, we shall determine, the voltage across R₁. This can be obtained as follow:
NOTE: Since the resistors are in series connection, the same current will pass through them.
Current (I) = 0.4737 A
Resistor 1 (R₁) = 20 Ω
Voltage 1 (V₁) =?
V₁ = IR₁
V₁ = 0.4737 × 20
V₁ = 9.47 V
Therefore, the voltage across R₁ is 9.47 V.
Answer:
9.47
Explanation:
Just Took the Test
a cylindrical tank with radius 7 m 7 m is being filled with water at a rate of 4 m 3 /min 4 m 3 /min . how fast is the height of the water increasing?
Answers
0.013 m/min If a cylindrical tank with a radius of 7 m 7 m is filling with water at a rate of 4 m 3 /min, ast is the height of the water rising. 4 m 3 /min
How do radius and diameter work?The diameter of a circle cuts through the center, whereas the radius circumscribes the circle from edge to edge. The size of a circle essentially divides it in two.
In mathematic words, what is a radius?A radius is a line segment that has one endpoint in the circle's center and the other terminus on the circumference of the circle. Circle's diameter equals the radius The diameter of a circle is a line segment that has its ends on the circle and passes through its center. Radius x 2 equals the diameter.
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What part of the microscope do you adjust to change the amount of light?
Answers
The microscope has two sets of lenses, one in the eyepiece and one in the objective lens. The amount of light is changed by adjusting the diaphragm of the microscope. The diaphragm controls the amount of light that passes through the stage and is focused on the object being viewed.
There are two types of diaphragms in a microscope: the iris diaphragm and the disk diaphragm. The iris diaphragm is adjustable, while the disk diaphragm is preset. The iris diaphragm is located near the base of the microscope and can be adjusted to control the amount of light that enters the microscope. It works like a camera aperture, opening or closing to let in more or less light. When the iris diaphragm is closed, less light enters the microscope, and the image appears darker.
When the iris diaphragm is open, more light enters the microscope, and the image appears brighter. By adjusting the iris diaphragm, you can get the best possible image of the object being viewed. To summarize, the diaphragm is the part of the microscope that you adjust to change the amount of light. The iris diaphragm is adjustable, while the disk diaphragm is preset. By adjusting the diaphragm, you can get the best possible image of the object being viewed.
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A red wagon with a mass of 7\, {\text{kg}}7kg7, start text, k, g, end text is moving with a velocity of 4\,\dfrac{\text{m}}{\text{s}}4
s
m
4, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction straight toward a blue wagon at rest. The red wagon’s mass is 777 times the mass of the blue wagon. The final velocity of the red wagon is 3\,\dfrac{\text{m}}{\text{s}}3
s
m
3, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction .
What is the velocity of the blue wagon immediately after the red wagon collides with it?
Answers
The velocity of the blue wagon immediately after the red wagon collides with it is 7 m/s
How do I determine the velocity of the blue wagon after collision.?From the law of conservation of linear momentum, we understood that momentum before collision is equal to momentum after collision as shown below:
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
Where
m₁ and m₂ are the masses of the two objectsu₁ and u₂ are the initial velocities of the two objectsv₁ and v₂ are the final velocities of the two objectsWith the above formula, we can obtain the velocity of the blue wagon as follow:
Mass of red wagon (m₁) = 7 KgInitial velocity of red wagon (u₁) = 4 m/sMass of blue wagon (m₂) = m₁ / 7 = 7 / 7 = 1 KgFinal velocity of red wagon (v₁) = 3 m/sFinal velocity of red wagon (v₂) = ?m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
(7 × 4) + (1 × 0) = (7 × 3) + (1 × v₂)
28 = 21 + v₂
Collect like terms
v₂ = 28 -21
v₂ = 7 m/s
Thus, the velocity of the blue wagon after collision is 7 m/s
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Why is the use of carbon- 14 dating limited?
Answers
Answer:
because carbon 14 has only a short half life, rather than other elements with longer half lives.
Explanation:
✨science✨
How do I solve this problem? Note option A is the wrong answer.
Answers
Answer:
B
Explanation:
Answer is B because the ball passes at 10 to 30
Which feature of this rock demonstrates that it is a clastic sedimentary rock?
visible crystal formations
variation of colored sediments
visible rock fragments
distribution of organic materials
Answers
Answer:
visible rock fragments
Explanation:
sedimentary rocks start as sediments carried in rivers and deposited in lakes and oceans then get buried so the sediments lose water and become cemented to form the rock.
Answer:
c
Explanation:
A balloon was inflated to a volume of 5l at a temperature of 280 k. the balloon is heated to 420k. what is the new volume?
v1/t1=v2/t2
Answers
Explanation:
You are given the equation to use and all of the numbers except the one you are looking for....just plug-n-play
5/280 = v2/420
v2 = 420 * 5 / 280 = ?? liters
Help, I have to deliver it tomorrow What do I have to do?
Answers
A state machine is graphically represented by a state diagram. It displays a behavioral model made up of states, transitions, and actions, together with the events that have an impact on these.
What is Intial model Diagram?Additionally, it's one of the 14 UMLs, or Unified Modeling Languages, that are employed for defining, modeling, building, and documenting software systems.
The two types of UML diagrams are structural and behavioral. While behavioral UML diagrams portray the dynamic changes inside a system, structural UML diagrams show the static framework of a system or process.
A state diagram is one kind of behavioral diagram, in case you hadn't guessed.
Therefore, A state machine is graphically represented by a state diagram. It displays a behavioral model made up of states, transitions, and actions, together with the events that have an impact on these.
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How fast would a billiard ball be travelling if it had a kinetic energy of 22 J, and a mass of 0.223 kg?
Answers
Answer:
Explanation:
K.E=1/2mv²
22=1/2 0.223 v²
v²=197.3
v=14.04 m/s
Please help if you have the time
A string is stretched between fixed supports 2.0 meters apart. When set in transverse vibration at a frequency of 120 Hz the string vibrates in four segments, as shown. What is the wave speed in the string?
Answers
We know, length of segment wave is half the wavelength .
Let, wavelength of wave is \(\lambda\).
So, length of segment will be \(\dfrac{\lambda}{2}\) .
Now, it is given that the string vibrates in four segments.
So,
\(L = 4\times \dfrac{\lambda}{2}\\\\L = 2\lambda\\\\\lambda = 1\ m\)
Speed can be given by :
\(speed = wavelength \times frequency\\\\speed = 1\times 120\ m/s\\\\speed = 120\ m/s\)
Therefore, the wave speed in the string is 120 m/s.