Add voltmeters to measure the voltage across each bulb and the power source for a total of 4 voltmeters. On the correct circuit, label positive + and negative - on the battery and label the bulbs 1, 2, 3

The phase of the reaction and the amount of heat energy that are increased when the temperature of a chemical reaction is raised.

Heat energy is created by the movement of tiny atoms, molecule, or particles in solids, fluid, and gases. Heat energy may transfer from one item to another. The flow activity transfer that happens as a result of a temperature difference between two objects is referred to as heat.

51% of the energy used for heating comes from industrial activities, while 46% is used in buildings for heat and power as well as, to a smaller degree, cooking. The remaining portion is largely utilized in agriculture for greenhouse heating.

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The phase angle is 56.2°, the power factor is 0.556, the impedance is 355.56 ohms and the r.m.s voltage is 158.58V

Alternating Current Circuits or AC circuits are simply circuits powered by an Alternating Source, either current or voltage. An Alternating Voltage or Current is one in which the amount of either the voltage or the current alters about a distinct mean value and reverses direction periodically.

The impedance of a c circuit Z = √R²+( X(l) - X(c))²

X(l)and Xc are inductive and capacitive reactance respectively

X(l) = 2πfl= 2×3.14×408×0.124= 317.7 ohms

X(c)= 1/2πfc= 1/2×3.14×408×3.29× 10^-6= 53.54 ohms

Z= √238²+(317.7-53.54)²

Z= √56644+69780.51

Z= √ 126424.51

Z= 355.56 ohms

Phase angle = tan^-1( Z/R)

= tan^-1 (1.494)

= 56.2°

power factor = cosine of phase angle

= cos 56.2°= 0.556

The r.ms voltage Vr.m.s = Ir.m.s ×Z

= 0.446× 355.56= 158.58V

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The spring with the spring constant 40 N/m has the shortest period when attached to a 100gm mass.

We know the expression for time period as,

T = 2π√(m/k)

From the above expression, it is clear that, Time period T is inversely proportional to √k.

T ∝ 1/√k

where, k is spring constant

So, T value will be smaller if the k value is the greatest.

Given that, Mass of the spring = 100 gm = 100/1000 = 0.1 kg

Now, let us substitute k value and find out T value.

Let k = 40 N/m, T = 2π√(0.1/40) = 2π* 0.05 = 0.1* π = 0.314 s

Let k = 10 N/m, T = 2π√(0.1/10) = 2π* 0.1 = 0.2* π = 0.628 s

Thus, for the spring constant k = 40 N/m, we get the shortest period.

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For an RLC series circuit :
a. The average power dissipated in the resistor for the following values for the capacitance C = 76uF is 3.97W

b. The average power dissipated in the resistor for the following values for the capacitance C = 7.6uF is 4.2W

It is the ability of a component or circuit to collect and store energy in the form of an electrical charge. Capacitors are energy-storing devices available in many sizes and shapes.

a. How to calculate the average power for the capacitance C = 76uF?
V₀ = 100V

n = 500Hz

R = 550 Ω

L = 0.2H

XL = WL = 2 * π * F * L = 2 * 3.14 * 500 * 0.2 = 628 Ω

Xc = 1 / Wc

= 10^6 / 2 * 500 * π * 76

= 10^3 / 76 * 3.14

= 1000 / 238.64

= 4.19 Ω

Z = √R² + (XL - Xc)²

= √550² + (628 - 4.19)²

= √302,500 + 389,138.9

= 831.65Ω

peak current

Io = Vo / Z

= 100 / 831.65

= 0.12A

Irms = Io / √2

= 0.12 / 1.414

= 0.085A

Average power dissipated Pav = Irms^2 * R

= 0.085^2 * 550

= 3.97W

Therefore, the average power dissipated in the resistor for capacitance value 76uF is 3.97W.

b. How to calculate the average power for the capacitance C = 7.6uF?

Xc = 10^6 / 1000 * π * 7.6

= 1000 / 7.6 * 3.14= 41.9Ω

Z = √R² + (XL - Xc)²

= √550² + (628-41.9)²

= √302,500 + 343,513.21

= 803.75Ω

Io = Vo / Z

= 100 / 803.75

= 0.124 A

Irms = Io / √2

= 0.124 / 1.414

= 0.0877 A

Average power dissipated Pav = Irms^2 * R

= 0.0877² * 550

= 4.23W

Therefore, the average power dissipated in the resistor for the capacitance value 7.6uF is 4.23W.  

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According to Ampere Maxwell's law, the first half, the magnetic field can be created by the changing electric field. So, the electric field strength is changing.

In a static electric field, according to Ampere maxwell law, the divergence at one point is equal to the electric charge volume density ρ at that point divided by ε0. The physical meaning of this statement is that a circulating magnetic field is created by an electric current and also may be by an electric field that changes with time.

An electric current, or we can say a changing electric flux through a surface, has the ability to produce a circulating magnetic field around a path that bounds the given surface. The direction of the current and the induced magnetic field is known by the right-hand rule, as shown below.

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To maintain constant body temperature, living organisms release heat radiation.

Life is dependent on homeostasis, which is the preservation of stable internal conditions, in warm-blooded animals. The consistent body temperature is one of homeostasis's signs. Depending on the species, this temperature for animals should range from 35 to 39.5 °C.

A portion of the heat generated in cells during breathing must be expelled in order to maintain a steady body temperature. Living things can lose heat through convection, conduction, radiation, and the loss of water through breathing and sweating (2260 KJ/Kg is the heat at which water vaporises). Imperceptible sweating and perceptible sweating are the two types of sweating that exist. The body naturally experiences unnoticeable sweating throughout the day.

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The frequency of the wave is 5 Hz and the amplitude is 0.002 m.

A wave is a disturbance in a medium that carries energy without a net movement of particles. In general, waves are classified into two types as Longitudinal and Transverse.

Given is a wave as shown in the image.

[A] -

The time period of wave [T] = 0.2 s

Frequency [v] = 1/T = 1/0.2 = 10/2 = 5 Hz

[B] -

Amplitude = maximum vertical displacement = 2mm = 0.002 m

Therefore, the frequency of the wave is 5 Hz and the amplitude is 0.002 m.

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Amplitude is one of these qualities. The largest movement of a particle on the medium from its rest position is referred to as a wave's amplitude.

Wavelength:

The wavelength of the wave is the distance covered by it throughout a whole oscillation.

A metre is the wavelength's SI unit (m).

Frequency:

The frequency of a wave is the number of oscillations it performs in a second.

It's calibrated in hertz (Hz).

time frame

The amplitude of the wave is the length of time it takes for one oscillation to complete.

Time is measured in S amplitude:

The wave's amplitude is defined as its largest departure from its mean or equilibrium position.

A measure of amplitude

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The combined momentum of your brother and his skateboard if they are going 8.6 m/s be 706.92 kg.m/s.

momentum is the result of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction. According to Isaac Newton's second equation of motion, the force applied on a particle is equal to the time rate of change of momentum.

According to the question:

Total mass of his and his skateboard: m = 79+3.2 kg = 82.2 kg.

Speed of them: v = 8.6 m/s.

Hence, magnitude of combined momentum of your brother and his skateboard = total mass × speed = 82.2 × 8.6 kg.m/s = 706.92 kg.m/s.

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When the temperature of aluminium is increased, the metal expands and this is called thermal expansion.

With the use of second equation of motion, the magnitude of the initial velocity of the object is 17.72 m/s

Velocity is the distance travel in a specific direction per time taken. It is a vector quantity and it is measured in m/s

Given that a car travels east with an acceleration of 0.20 m/s². It takes 45.0s to travel from position xi at 250.0 m east of the origin, to position xf at 1250 m east of the origin. That is,

The initial velocity of the car at position xi can be found by using the formula

s = ut + 1/2at²

Substitute all the parameters

1000 = 45u + 1/2 × 0.2 × 45²

1000 = 45u + 202.5

45u = 1000 - 202.5

45u = 797.5

u = 797.5/45

u = 17.72 m/s

Therefore, the initial velocity of the car at position xi is 17.72 m/s

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29 m/sec fast it will be travelling when it reaches the ground, 43 m below.

Energy conservation, a  basic rule of physics and chemistry states that despite internal changes, the overall energy of an isolated system remains constant. It is the underlying principle of the first rule of thermodynamics, which is most frequently stated as "energy cannot be generated or destroyed."

As an illustration, a radio converts electrical energy into sound energy.

Given that,

height (h) = 43 m

g = 9.8 m/sec

Using the conservation of energy,

mgh = 1/2 m v²

or, v = [tex]\sqrt{2gh}[/tex]

or, v = [tex]\sqrt{2 * 9.8 * 43}[/tex]

or, v = 29 m/sec.

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The net force on particle q₁ is 4 N along right wards.

Electric force is the attracting or repulsive interaction between any two charged things. Similar to any force, Newton's laws of motion describe how it affects the target body and how it does so. One of the many forces that affect objects is the electric force.

According to the question,

Force applied on q₁ charge due to q₂ charge = (1/4πε₀) q₁q₂/r² = 11.24 N.

Force applied on q₁ charge due to q₃ charge = (1/4πε₀) q₁q₃/r² =- 7.24N.

Hence, net force acting on q₁ = 11.24 N - 7.24 N = 4 N.

Hence, the net force on particle q₁ is 4 N along right wards.

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When the bus is fully loaded, the center of gravity rises to 1.73 m, and the critical angles are 35.3 degrees for the unloaded bus and 30.6 degrees for the loaded bus, respectively.

Theoretically, the body's total weight is concentrated at a location called the center of gravity.

The main distinction between the centers of mass and gravity is that the center of gravity refers to the location where the total weight of the body is balanced, whereas the center of mass refers to the location where the body's complete mass is directed.

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We can say some external things about body accelaration.

Acceleration of a body is the given as change in velocity is the per unit time of a body. That means it is the ratio of to the final velocity - initially the velocity. Accelaration = v - u t .

As per the given question -

We have to observe the value of horizontal accelaration for boy masses

And the dynamics model for the man and boy.

We can say about accelaration that is accelaration rate at which velocity change with time.in terms of both speed and direction.

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A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit.

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Route poising, as opposed to merely discontinuing to display the route, refers to promoting the unsuccessful route with a "infinite" metric. Poison reversal is the practice of poisoning a route by publicizing it.

In physics, the term "time reversal" refers to the mathematical process of substituting the word for time in equations or equations with its opposite in order to depict a situation in which time moves backwards or the motion are inverted. The cosmos cannot be "unmixed." This eventually suggests the time only exists as a result of the Big Bang.

In physics, the term "time reversal" refers to the mathematical process of substituting the word for time in formulas for equations with its opposite in order to represent a situation in which time moves backward or all motions are inverted.

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The current in the circuit is 0.5 A. This is clear from the compilation of the question.

We know that the current has to do with the the quotient of the resistance and the voltage of the circuit. In this case we would follow the provisions of the Ohm's law.

Given the Ohm's law;

The effective resistance can be obtained as; 11 + 5 + 4 =  20 ohm

Where V = IR

V = voltage

R = resistance

I = current

Then;

I = V/R

= 10-volt/20 ohm

= 0.5 A

Thus there is the flow of a current of about 0.5 A in the circuit as shown.

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Missing parts;

An 11-ohm resistor, a 5-ohm resistor, and a 4-ohm resistor are connected in a series across a 10-volt potential difference. Find the current

Answer:

Below

Explanation:

Find out how long it takes to fall the 30 m ....then use this time and the horizontal velocity to find the answer

For vertical :   d = 1/2 a t^2

                      30 = 1/2 (10) t^2      so t = sqrt 6

Horizontal velocity * time = distance from cliff base

          20 m/s   *   sqrt 6 = 48.99 = ~ 49 meters

Answer:

PLS RATE AS BRAINIEST

Explanation:

Types of metals are:-

USES OF METALS

I HOPE THIS HELPED

If we rearrange the circuit so that the inductor and capacitor were connected in series,the impedance would be  Decreased and the resonant frequency would be unchanged.

Frequency is the rate at which something occurs over a particular period of time or in a given sample.

Sol-An LC circuit is made up of an inductor (L) and a capacitor (C). At the resonance condition of the LC circuit, the inductive reactance XL. becomes equal to the capacitive reactance Xc.

It is defined as-

XL= 2πfL

Xc= 1/2πfC

So when reactances are equal we have-

XL=Xc

2πfL= 1/2πfC

f^2=1/4π^2LC

f=1/2π√LC

The resonance condition is the same for both the parallel and series LC circuit, so the resonance frequency will not change.

The impedance of a parallel LC circuit is:

Z(w)= jL w^2-w^2•/w

In a series LC circuit, when w

, the impedance becomes equal to 0.

Therefore the impedance of a series LC circuit will decrease and the resonant frequency will remain the same.

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The magnitude and units of the earth's gravitational acceleration are 9.8 m/s2 downward. The motion of an object is altered by a net force.

What causes acceleration?

Acceleration is the rate at which the speed and direction of a moving object shift over time. Anything is said to be speeding when it starts to move either faster or slower. Even if the speed is constant, motion on a circle accelerates because the direction is constantly shifting.

What three forms of acceleration are there?

Mainly, The three different types of accelerated motions are uniform acceleration, non-uniform acceleration, and average acceleration. A motion in which an object moves in a straight line while accelerating is referred to as uniform acceleration.

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Refer to the attached photo. Would appreciate a rate :)

The acceleration of the Lockheed is 9.38 × [tex]10^{2}[/tex], for the given force and the mass, and using the formula F = m × a, where m = mass, a = acceleration.

The rate at which an object's velocity with respect to time changes is called its acceleration. It is a vector quantity. The direction of the net force imposed on an object determines its acceleration in relation to that force.

A force is an influence that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

F = m × a

7.23 × [tex]10^{5}[/tex]  = 7.7 × [tex]10^{4}[/tex] × a

9.38 × [tex]10^{2}[/tex] = a

Hence, the acceleration of the Lockheed is 9.38 × [tex]10^{2}[/tex], for the given force and the mass.

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The initial velocity of the magnetic dart is 46 m/s.

A substance or thing that generates a magnetic field is called a magnet. The most noteworthy characteristic of a magnet—the force that pulls on other ferromagnetic elements like iron, steel, nickel, cobalt, etc.—as well as the ability to attract or repel other magnets are caused by these magnetic fields.

Only momentum is conserved in the inelastic dart-target collision, so

m vi + M Vi =  (m + M) Vf

where Vi = 0 since the target is initially at rest and Vf is the common velocity just after impact. As the dart-target combination swings

upward, energy is conserved, so  ΔPE = ΔKE,

Vf = √2ghf

Substitute Vf into the momentum equation and solve for vi,

Vi = ( m + M/ m) × √2ghf

    =  (0.025 Kg + 0.73 Kg / 0.025 kg) ( √ 2 ×(9.8 m/s²) × (0.120)

    = 46 m/s.

Hence, the initial velocity of the magnetic dart is 46 m/s.

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At points h and k, the normal linear shearing strains are 0.423 in.3 and 0.16536 in.3, or 1982.3 psi and 156.1 psi, respectively.

The word "force" has a specific meaning in science. At this level, calling a force a push or indeed a pull is entirely appropriate. A energy is not something an object "has in it" or that it "contains." One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.

Briefing:

To replace all forces on a pipe by the equivalent force

T= 8× 50 = 400lb.in

M = 16.30 = 480lb.in

F₂ = 50lb

To calculate the polar moment of inertia of shaft is

J = π/π²×(R⁴-r⁴)

= π²/2×(0.875⁴ - 0.750⁴)

= 0.423in.³

To calculate the moment of inertia

J= 1/2(J)

=1/2 (0.423)

=0.21188in.³

To calculate shear flow

Qy= 2/3(R³-r³)

= 2/3(0.875³- 0.750³)

= 0.16536in.³

To calculate the thickness of the shaft

t= R-r = 0.875 - 0.750 = 0.125 in.

The stress due to torsions is.

Tx = TR/J = 400 × 0.875/0.42376

=825. 9psi.

The stress due to bending

Qx =My/T = 480 × 0.875/0.2118

=1982.3psi

The stress due to transverse shear

Qx = VQ/I(2t)

=50 × 0.16536/0.2118× 0.250

=156.1psi

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Answer:

Explanation:

Given:

m = 2 050 km

M = 5.98·10²⁴ kg

h = 4.89·10⁵ m

R = 6.37·10⁶ m

____________

F - ?

F = G·m·M / R²

F = 6.67·10⁻¹¹·2050·5.98·10²⁴ / (6.37·10⁶)² = 18 400 N

The spacing of galaxies inside the universe provides the strongest evidence for the big bang theory, hence choice A is the correct one.

Astronomers use the big bang theory to describe how the cosmos came into being. It is the hypothesis that the universe started out as a single point, then grew and stretched until it reached its current size—and is still growing. Jim Parsons has given an explanation for why he is leaving The Big Bang Theory. The American actor, who has been Sheldon Cooper in the critically acclaimed sitcom for 12 seasons, stated in an interview with The Hollywood Reporter that it was time for him to depart since it had "become increasingly challenging."

Although a hypothesis can never be proven, it must be "testable" through observation or experimentation. Despite these significant issues, the Big Bang Theory has so far mainly held up to observations and is widely regarded among the cosmology community.

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After 90 minutes, there is a 50% chance that the final nucleus will have decayed because element Q has a half-life of 30 minutes for its 4 nuclei. This phrase is frequently used in nuclear physics.

Examining the interaction that now exists between chemists and philosophers of chemistry gives a very singular chance to consider the conceptual nature of the term "element." Robert Boyle, an English scientist, initially proposed the chemical element. A quantity (of substancehalf-life )'s (symbol t12) is the amount of time needed for it to decrease to half of its original value. The phrase is frequently used in nuclear physics to refer to how long stable atoms last or how quickly unstable atoms decay radioactively.

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