an ac sine wave with an rms value of 120vac is connected to a full-wave rectifier. what is the average dc voltage

A water valve that regulates water flow to a water-cooled condenser based on the temperature of condenser exhaust water is a thermostatic water valve.

This type of valve uses a temperature-sensitive element, such as a wax pellet or a bimetallic strip, to control the flow of water.
When the temperature of the condenser exhaust water rises above a setpoint, the element expands or contracts, causing the valve to open or close. By adjusting the flow of water, the thermostatic water valve helps maintain the desired temperature within the condenser.
The purpose of this valve is to ensure optimal cooling efficiency and prevent overheating of the condenser. As the condenser exhaust water temperature increases, the valve responds by allowing more water to flow through the condenser, thus enhancing the cooling effect. Conversely, when the temperature decreases, the valve restricts the flow, conserving water and maintaining a stable temperature.

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The fragments reaction is 7.59 MeV/nucleon and  8.39 MeV/nucleon

What is nucleus ?

Neutrons and protons, which have opposite electric charges, make up atomic nuclei. The strongest basic force now understood, known as the strong force, is what holds these things together. A normal atom's nucleus generally holds more than 99.9% of the atom's mass yet takes up considerably less than.01 percent of its volume.

What is fission ?

When a neutron collides with a bigger atom, it excites it and causes it to split into two smaller atoms, which are known as fission products. This process is known as fission. A chain reaction might start as a result of additional neutrons that are also emitted. Huge amounts of energy are produced during the splitting of each atom.

1) m_proton + m_netron + m_electron - m_U

= 92*1.007276466812 + 92*5.4857990943e-4 + 143*1.008664916 - (235.0439299)

= 1.9151 u

= 931.494061 * 1.9151 MeV

= 1784 MeV

= 1784/235 = 7.59 MeV/nucleon

2) m_proton + m_netron + m_electron - m_Cs

= 55*1.007276466812 + 55*5.4857990943e-4 + 82*1.008664916 - (136.9070895)

= 1.2338 u

= 931.494061 * 1.2338 MeV

= 1149 MeV

= 1145/137 = 8.39 MeV/nucleon

Therefore, the fragments reaction is 7.59 MeV/nucleon and  8.39 MeV/nucleon.

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Explanation:

#31 = crest

#32 = Trough

#33 = Wavelength

#34 = Amplitude

-TheUnknownScientist

Answer:

vaat hachi upar vada ni.

The true statements are (a) The skateboarder is moving in the direction of the net force. and (c) The acceleration of the skateboarder is in the same direction as the net force.

a) The skateboarder is moving in the direction of the net force. correct in some cases; This depends on the direction of the net force relative to the direction of the skateboarder's initial velocity. If the net force acts in the same direction as the initial velocity, the velocity increases, and if the net force acts in the opposite direction, the velocity decreases.

(b) The acceleration of the skateboarder is at right angles to the net force. never true; By definition, acceleration is the rate of change of velocity. If the net force is non-zero, the velocity changes and the acceleration is always in the direction of the net force instead of perpendicular to it.

(c) The acceleration of the skateboarder is in the same direction as the net force always true; An object's acceleration is directly proportional to the net force acting on it and inversely proportional to its mass. If the net force is non-zero, the acceleration is always in the same direction as the net force.

(d) The skateboarder is instantaneously at rest.never true; If the net force is non-zero, the speed has changed and the skateboarder is not resting. If the skateboarder is not standing, they should accelerate in the direction of the net force.  

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Answer:

We can use Coulomb's law to solve this problem:

F = k * q1 * q2 / r^2

where F is the force between the two charges, k is Coulomb's constant (k = 9 x 10^9 N m^2 / C^2), q1 and q2 are the magnitudes of the charges, and r is the distance between them.

We know the force F, the distance r, and the magnitude of one of the charges q1. We can rearrange the equation to solve for the magnitude of the other charge q2:

q2 = F * r^2 / (k * q1)

Substituting the values we have:

q2 = (250 N) * (0.15 m)^2 / (9 x 10^9 N m^2 / C^2 * 6.5 x 10^-5 C)

Simplifying:

q2 = 8.65 x 10^5 C

Therefore, the magnitude of the other charge is 8.65 x 10^5 C.

Answer:

his acceleration rate is -0.00186 m/s²

Explanation:

Given;

initial position of the car, x₀ = 100 miles = 160, 900 m ( 1 mile = 1609 m)

time of motion, t₀ = 60 minutes = 60 mins x 60 s = 3,600 s

final position of the car, x₁ = 150 miles = 241,350 m

time of motion, t₁ = 100 minutes = 100 mins x 60 s = 6,000 s

The initial velocity is calculated as;

u = 160, 900 m / 3,600 s

u = 44.694 m/s

The final velocity is calculated as;

v = 241,350 m / 6,000 s

v = 40.225 m/s

The acceleration is calculated as;

\(a = \frac{\Delta V}{\Delta t} = \frac{v- u}{t_1 - t_ 0} = \frac{40.225 - 44.694}{6000-3600} = -0.00186 \ m/s^2\\\\\)

Therefore, his acceleration rate is -0.00186 m/s²

In Price's verbal equation, material properties refer to the characteristics and behaviors of a material, mass fabric relates to the distribution and arrangement of mass within a structure, and mass properties involve the quantitative measures of mass distribution and its effects on the structural performance.

(a) Material properties in Price's verbal equation pertain to the specific attributes and qualities of a material that influence its mechanical behavior, such as strength, stiffness, density, thermal conductivity, and elasticity. These properties determine how a material will respond to external forces and environmental conditions, and they play a crucial role in the design and analysis of structures.

(b) Mass fabric refers to the spatial arrangement and distribution of mass within a structure. It considers the organization, orientation, and connectivity of the structural elements that contribute to the overall mass distribution. Mass fabric affects the structural behavior, load transfer paths, and structural efficiency of a system. By understanding the mass fabric, engineers can optimize the arrangement of components to achieve desired structural performance.

(c) Mass properties involve the quantitative measures of mass distribution within a structure and its impact on its mechanical behavior. Mass properties include parameters such as mass, center of mass, moments of inertia, and radii of gyration. These properties provide important information for analyzing the dynamic response, stability, and vibrational characteristics of structures. They also influence the structural design, material selection, and optimization processes.

In Price's verbal equation, these concepts collectively contribute to understanding the behavior and performance of structures, enabling engineers to make informed decisions in design, analysis, and optimization. By considering material properties, mass fabric, and mass properties, a comprehensive understanding of the structural system can be achieved.

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Answer:

Power is 4373.25 W

Explanation:

We have,

The lift raises a car of mass 850 kg to a height of 2.1 m. It uses a force of 8330 N and takes 4 seconds to raise the car. It is required to find the power of the lift. Power is equal to the rate at which the work is done. So,

\(P=\dfrac{Fd}{t}\\\\P=\dfrac{8330\times 2.1}{4}\\\\P=4373.25\ W\)

So, the power of the lift is 4373.25 W.

The magnet will be a useful tool to pick the paper clips because the magnet can attract the paper clips.

The like poles of magnets repel while unlike poles of magnets attracts. Magnets attracts irons or metallic materials.

The paper clips are mettalic or made of iron and hence the magnet will attract them.

There we can conclude that the magnet will be a useful tool to pick the paper clips because the magnet can attract the paper clips and will help to gather them together for easy picking.

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Using Runge-Kutta 2nd order Heun's method, the speed (w) at t = 0.8s is approximately 0.0081.

Given:

Voltage input (V) = 30V

Initial speed (w) = 0

Step size (h) = 0.4s

Time at which speed is to be determined (t) = 0.8s

We need to determine the speed (w) at t = 0.8s using Heun's method.

We have k₁ = f(t₁, W₁) = 0.02 + 0.06w₁ (using the given equation)

At t = 0 and w = 0 (initial conditions), we have:

k₁ = 0.02 + 0.06(0) = 0.02

We have k₂ = f(t₁ + h, w₁ + k₁h) = 0.02 + 0.06(w₁ + 0.02h)

So, at t = 0.4s and w = 0 (initial conditions), we have:

k₂ = 0.02 + 0.06(0.02 * 0.4) = 0.02 + 0.00048 = 0.02048

So, W₂ = w₁ + (k₁ + k₂)(h/2)

   = 0 + (0.02 + 0.02048)(0.4/2)

   = 0.04048(0.2)

   = 0.008096

Therefore, using Runge-Kutta 2nd order Heun's method, the speed (w) at t = 0.8s is approximately 0.0081.

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The complete question is:

The speed of a motor supplied with a voltage input of 30V, assuming the system is without damping, can be expressed as 30 = (0.02)+(0.06)w dt If the initial speed is zero and a step size of h = 0.4 s, determine the speed w at t = 0.8 s by using the Runge-Kutta 2nd order Heun's method. Heun's method: Wi+1=W₁ = w₁ + (-/-^₁ + = -K ₂ ) h where, k₁ = f(t₁, W₁) and k₂ = f(t₁ + h, w₁ + k₁h), the speed (w) at t = 0.8s is approximately 0.0081.

Energy from the battery is changed into electrical energy, which is then used to power the fan and create kinetic energy as the blades spin.

In an electric circuit, energy is changed from one form to another. When a battery is connected to a fan, energy from the battery is changed into electrical energy. This electrical energy is then used to power the fan and create kinetic energy, or energy of motion, as the blades spin.

The energy from the battery is stored in the form of chemical energy. This chemical energy is then changed into electrical energy, which is the energy required to power the fan. This electrical energy passes through the fan, causing the blades to spin. As the blades spin, kinetic energy is generated in the form of the movement of the blades.

The energy in the electric circuit is constantly changing from one form to another. The battery converts chemical energy into electrical energy, and the fan converts electrical energy into kinetic energy. This is the process of energy transformation, which allows us to convert energy from one form to another in order to use it to power appliances.

The electric circuit created by the students is a simple way to illustrate this process of energy transformation. The battery provides the initial source of energy, which is then converted into electrical energy. This electrical energy is then used to power the fan and create kinetic energy. This kinetic energy is then used to move the fan

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Answer:

Energy from the battery is changed into electrical energy, which is then used to power the fan and create kinetic energy as the blades spin.

Connection of an electric circuit

Explanation:

w1 and wr are the angular velocities will be the correct answer .

What is Distance ?

Distance is a scalar quantity that describes the amount of space between two points. It is usually measured in units of length, such as meters, kilometers, or miles. Distance can be calculated as the magnitude of the displacement vector, which is the difference between the initial and final positions of an object.

In physics, distance can be used to describe the length of a physical object, the distance between two points in space, or the length of a path taken by an object. In mathematics, the concept of distance is often used in geometry and can refer to the length of a line segment, the shortest distance between two points, or the distance between two shapes.

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Answer:

Explanation:

l etme y lo saoc apr aotarsy  r dealkten dpo

The ball reaches a maximum height of approximately 42.83 ft.  the ball lands at a horizontal distance of approximately 81.36 ft. he average value of f(x)= x³8 +9x on the interval is 10.5.

To determine the maximum height and horizontal distance traveled by the ball shot at an angle of 45 degrees with an initial velocity of 41 ft/sec and neglecting air resistance, we can use basic kinematic equations.

Maximum Height:

The maximum height reached by the ball can be calculated using the equation for vertical displacement:

y_max = (v₀² * sin²θ) / (2g),

where v₀ is the initial velocity, θ is the launch angle (45 degrees), and g is the acceleration due to gravity (32 ft/s²).

Plugging in the values, we get:

y_max = (41² * sin²45°) / (2 * 32) = 42.83 ft.

Therefore, the ball reaches a maximum height of approximately 42.83 ft.

Horizontal Distance:

The horizontal distance traveled by the ball can be calculated using the equation for horizontal displacement:

x = v₀ * cosθ * t,

where x is the horizontal distance and t is the time of flight.

Since the ball goes up and then comes back down, the total time of flight can be calculated as:

t_total = 2 * (v₀ * sinθ) / g.

Plugging in the values, we get:

t_total = 2 * (41 * sin45°) / 32 ≈ 2.88 s.

Using this total time, we can find the horizontal distance:

x = 41 * cos45° * 2.88 ≈ 81.36 ft.

Therefore, the ball lands at a horizontal distance of approximately 81.36 ft.

Moving on to the second question:

To find the position of a particle at time t = 14, given its acceleration, initial position, and initial velocity, we can use the equations of motion.

The position function s(t) can be obtained by integrating the acceleration function twice with respect to time. Since the given acceleration is a linear function, we have:

s(t) = (1/6)at³ + (1/2)v₀t² + s₀,

where a is the acceleration, v₀ is the initial velocity, and s₀ is the initial position.

Plugging in the given values, we get:

s(14) = (1/6)(24)(14)³ + (1/2)(15)(14)² + 12 ≈ 546.67.

Therefore, the position of the particle at time t = 14 is approximately 546.67.

Lastly, for the average value of f(x) = x³ + 9x on the interval [1, 2], we can use the formula for the average value of a function on an interval:

Average value = (1 / (b - a)) * ∫[a, b] f(x) dx,

where [a, b] represents the interval.

Plugging in the values, we have:

Average value = (1 / (2 - 1)) * ∫[1, 2] (x³ + 9x) dx.

Evaluating the integral, we get:

Average value = (1 / 1) * [(1/4)x⁴ + (9/2)x²] evaluated from 1 to 2,

Average value = (1/4)(2⁴ + 9(2²)) - (1/4)(1⁴ + 9(1²)),

Average value = (1/4)(16 + 36) - (1/4)(1 + 9),

Average value = (1/4)(52) - (1/4)(10),

Average value = 13 - 2.5,

Average value ≈ 10.5

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A substance that prevents free flow of electrical current is known as an electrical insulator. The electrons in the insulator's atoms are securely bonded and immobile.

Protons are in overabundance on an aluminium plate that is positively charged. A positively charged aluminium plate has a deficiency of electrons when viewed from the perspective of electrons. We might characterise each extra proton as being somewhat dissatisfied in terms of people.

The other plate develops an imposed positive charge as a result of the electron's electric field, which pulls on the electrons that are in that plate and repels other electrons.

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Answer:

The force of friction.

Explanation:

Gravity keeps the car on the ground.

Motion Allows the car to move.

The force of speed doesnt make sense.

Friction would cause the car to stop moving.

The correct answer for how the albedo of polar regions affect insolation is: Low temperatures are maintained because of the high amount of reflection.

The albedo of a surface refers to its ability to reflect sunlight. Higher albedo means more sunlight is reflected, while lower albedo means more sunlight is absorbed. Polar regions, such as the Arctic and Antarctic, have high albedo due to the presence of ice and snow, which reflect a significant portion of incoming sunlight.

When sunlight hits the polar regions with high albedo, a large portion of it is reflected back into space rather than being absorbed by the surface. As a result, less solar energy is available to heat the surface, leading to lower temperatures in these regions.

Therefore, low temperatures are maintained in polar regions because of the high amount of reflection caused by their high albedo.

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Answer:different parallel, straight paths. Each car's velocity as a function of time is shown in the graph. Which of the following claims is correct

about car X and car Y?

Both car X and car Y travel in the same direction.

Explanation:

Answer:

50.37 m/s and 40ms object

Answer:

Ofc! Uhm, The cause of that increase would be (C) As it rises.

Explanation:

I hope this helped a little- I'm sure that I won't be 100% correct as it is 11 pm for me, haha. Nya~ good luck on the test!

Answer:

24.14 degrees.

Diffraction grating is a flat and smooth surface with several parallel and closely spaced grooves, which are of the same width, separated by a groove-to-groove distance known as the grating period or the ruling.

To calculate the angle of diffraction maxima?

The angle of diffraction maxima can be calculated by using the equation d sin θ=nλ where d is the distance between the slits of the diffraction grating, θ is the angle at which the bright fringe is formed, n is the order of the bright fringe and λ is the wavelength of the incident light.

Let’s substitute the given values in the above equation. d = 0.00167 mm=1.67 × 10^-6 mλ = 656.3 nm=656.3 × 10^-9 m For n=2, the angle at which the second maximum is transmitted isθ = sin^-1(nλ/d)=sin^-1(2 × 656.3 × 10^-9 m/1.67 × 10^-6 m)=24.14° (approx)Thus, the angle at which the second maximum is transmitted is 24.14 degrees.

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Answer:

When the sun shines onto a solar panel, energy from the sunlight is absorbed by the PV cells in the panel. This energy creates electrical charges that move in response to an internal electrical field in the cell, causing electricity to flow.

Answer:

The net force on the object is 35 N directed up.

Explanation:

Net Force

The force is a vector because it has magnitude and direction. The net force is the sum of all the individual forces acting on an object.

Let's assume the forces directed upward are positive and the forces directed down are negative.

Force A: +50 N

Force B: -30 N

Force C: +25 N

Force D: -10 N

Net Force= 50 - 30 + 25 - 10 = 35 N

The net force on the object is 35 N directed up.

The flow of electricity in a certain path is the circuit.

During the summertime in Texas, mosquitos swarm. cars driving on the highways get covered in bugs.  which of the two forces is greater, Neither, they both experience the same force in opposite directions.

By Newton's third law, that car pushes on mosquitoes with the same force, but in the opposite direction. This force causes mosquitoes to slow down. One force of the action-reaction force pair is exerted on mosquitoes, and the other force of the force pair is exerted on mosquitoes.

Examples of action-reaction pair:

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Maximum heigh: 1.496 m

(This number is not exacte I truncated it)

Explanation:

Data:

mass : m = 0.003 kg

spring constant : k = 220 N/m

amount of compression: x = 2 cm = 0.02 m

heigh : h = ?

accelaratiom due to gravity : g = 9.8ms^-2

Potential Energy : PE = ?

Since you'll be converting the PE to KE, you'll use 2 formulas.

Formulas:

Solution:

Answer:

I think ur answer would be B

Explanation:

srry if wrong

hope this helps

The time it takes for light to travel from the lightning to your eyes can be calculated using the speed of light, which is approximately 300,000 kilometers per second.

Since the lightning is 1.6 kilometers away, we can use the formula: time = distance / speed. Plugging in the values, we have: time = 1.6 km / 300,000 km/s. Simplifying the calculation gives us a time of approximately 0.0000053 seconds, or 5.3 microseconds. For sound, we need to use the speed of sound, which is around 343 meters per second. Since the lightning is 1.6 kilometers away, we convert it to meters by multiplying by 1000: distance = 1.6 km * 1000 m/km = 1600 meters. Now we can use the formula time = distance / speed: time = 1600 m / 343 m/s. Simplifying the calculation gives us a time of approximately 4.7 seconds. In conclusion, it takes about 5.3 microseconds for the light from the lightning to reach your eyes, and about 4.7 seconds for the sound to travel to your ears when the lightning is 1.6 kilometers away.

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Answer:

Sorry I didn't know the answer