What is the first step necessary to allow calculation of voltages in a combination circuit containing resistive loads in series and parallel?

The magnetic field direction can be determined by circling the wire with the fingers while pointing the right thumb toward the direction of the current.

generated by a current is a magnetic field produced by a wire carrying current is a magnetic field. between two currents traveling in the same direction, the magnetic force between two currents flowing in opposite directions, and the magnetic force of a wire's induced current.

For instance, using the right-hand rule, the magnetic force exerted by the magnetic field on this wire is directed in the (-y) direction if the magnetic field is oriented in the (+x) direction and the current is in the (-z) direction.

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your on here to lol we must be hella failing g

Answer:

don't know

Explanation:

don't know cause i don't read physic

Answer:

Study of static electricity and the condition under which electricity is conducted by different substances.

Answer:

A i tooook theee quizzz too

His final velocity at the end of the 2.6 seconds will be  25.48 m/s

given

time = 2.6 seconds

initial velocity = u = 0

acceleration = acceleration due to gravity = 9.8 \(m/s^{2}\)  (since , it is a free fall )

final velocity = ?

using kinematics equation

v = u + at

v = u - g*t

v = - 9.8 * 2.6 = - 25.48 m/s

His final velocity at the end of the 2.6 seconds will be  25.48 m/s in downward direction

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Natural rubber - In making rubber bands

Cellulose - Used as food and in paper making

Silk - Used in making ties and fabrics

DNA - used to carry genetic information

Starch - Used in making jeans

A polymer is a big molecule made up of monomers, which are repeating units. Long chains made up of a few hundred to millions of monomers are formed when these subunits are joined together by covalent bonds.

Polymers can be created artificially or organically. Proteins, cellulose, and DNA are examples of naturally occurring polymers, whereas plastics, synthetic fibers, and rubber are examples of synthetic polymers.

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Answer:

7 1/2m/s/s

Explanation:

37-22=15

15/2=7 1/2

If your car gets 37.4 miles per gallon, it is approximately equivalent to 15.89 kilometers per liter.

To convert miles per gallon (mpg) to kilometers per liter (km/L), we can use the conversion factors of 1 mile ≈ 1.60934 kilometers and 1 gallon ≈ 3.78541 liters.

Given that the car gets 37.4 miles per gallon, we can calculate the equivalent in kilometers per liter.

First, we convert miles to kilometers by multiplying 37.4 mpg by 1.60934 km/mile, which gives us approximately 60.07 km/gallon.

Next, we convert gallons to liters by dividing 60.07 km/gallon by 3.78541 L/gallon, resulting in approximately 15.89 km/L.

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The force that causes the protons in an atom to be attracted to one another is Strong nuclear.

Nuclear force is a force that acts between the protons and neutrons of atoms.

Neutrons and protons, both nucleons, are affected by the nuclear force almost identically and it is responsible for the attraction of protons in an atoms.

Thus, the force that causes the protons in an atom to be attracted to one another is Strong nuclear.

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Answer: Seatbelts relate to Newton's first law of motion because in the case of a car accident, someone in the car would continue forward until they hit somethng else. A seat belt will help prevent this because it will push back on you (action-reaction force).

Explanation:

Answer: You could measure the baseball's mass, the distance the ball traveled to hit the window, and finally find the time it took for it to reach the window. With this information, we can calculate the velocity of the baseball, and then the kinetic energy using the formula KE=1/2mv^2.

Answer:

273.15

Explanation:

So that's three over two times 1.38 times ten to the minus twenty-three joules per Kelvin, times 5500 degrees Celsius, the surface of the sun converted into Kelvin by adding 273.15. This works out to 1.20 times ten to the minus nineteen joules. So that's the average kinetic energy of hydrogen atoms.

The energy that was lost due to air resistance while she was bouncing is determined as 3,360 J.

The amount of energy lost due to  air resistance while she was bouncing is determined from the principle of conservation of energy.

ΔE = P.E - Ux

ΔE = mgh - ¹/₂kx²

ΔE = (50)(9.8)(16) - ¹/₂(35)(16)²

ΔE = 3,360 J

Thus, the energy that was lost due to air resistance while she was bouncing is determined as 3,360 J.

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To determine the time constant for the circuit in part B, we'll first find the equivalent capacitance in both parts A and B, and then calculate the time constants using the given information.

Explanation:

In part A, the three identical capacitors are connected in series. The equivalent capacitance of capacitors in series is given by:
1/C-eq = 1/C + 1/C + 1/C
1/C-eq = 3/C
C-eq (A) = C/3

In part B, the three identical capacitors are connected in parallel. The equivalent capacitance of capacitors in parallel is given by:
C-eq = C + C + C
C-eq (B) = 3C

Now, we know the time constant for part A, which is given by τ_A = R*C-eq (A). The time constant is 0.32 s, so:
0.32 s = R * (C/3)

We want to find the time constant for part B, which is given by τ_B = R*C-eq (B). We can rewrite this as:
τ_B = R * 3C

Now, divide the equation for τ_B by the equation for τ_A:
τ_B / τ_A = (R * 3C) / (R * (C/3))
Simplify the equation:
τ_B / 0.32 s = 9

Solve for τ_B:
τ_B = 9 * 0.32 s
τ_B = 2.88 s

So, the time constant when the capacitors are connected with the same resistor as in part B is 2.88 seconds.

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A thermal energy transfer portfolio would be an excellent way for students to showcase their knowledge and understanding of this important scientific concept.

Thermal energy transfer is the energy transfer between two or more objects that have different temperatures. This energy transfer can take place in three different ways: conduction, convection, and radiation. A portfolio is a collection of documents or pieces of work that demonstrate a person's skills, abilities, and achievements in a particular area.

Therefore, a thermal energy transfer portfolio would be a collection of documents or pieces of work that demonstrate a person's skills, abilities, and achievements related to thermal energy transfer. This portfolio could include lab reports, experimental data, diagrams, and explanations of the various ways thermal energy can be transferred.

For example, a student's thermal energy transfer portfolio might include:

1. A lab report detailing an experiment they conducted to measure the rate of heat transfer through different materials using conduction.

2. A diagram showing the process of heat transfer through convection in a fluid, such as air or water.

3. A written explanation of the concept of radiation and how it relates to thermal energy transfer.

4. A spreadsheet of data showing the temperature changes in a system as heat is transferred through it.

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According to the question, an object that completes 6 vibrations in 36 seconds has a frequency of 1/6 Hz (Hertz).

The frequency of an object's vibration can be calculated by dividing the number of vibrations by the time taken. In this case, the object completes 6 vibrations in 36 seconds.

Frequency = Number of vibrations / Time

Frequency = 6 vibrations / 36 seconds

Simplifying the equation: Frequency = 1/6 Hz (Hertz)

The frequency of the object is 1/6 Hz, which means it completes one vibration every 6 seconds. Frequency is a measure of how many cycles or vibrations occur in a given time period. In this case, the object completes 6 vibrations in 36 seconds, resulting in a frequency of 1/6 Hz.

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The efficiency of the 500-kVA, 3-phase, 50-Hz transformer at full-load and one-half of full load is as follows:

(a) At unity power factor (p.f.), the efficiency is X% at full-load and Y% at one-half of full load.

(b) At 0.8 p.f., the efficiency is Z% at full-load and W% at one-half of full load.

In order to calculate the efficiency of the transformer, we need to consider the losses and power consumed. The efficiency is given by the ratio of the output power to the input power.

At full-load and one-half of full load, the output power can be calculated as follows:

Output Power (Pout) = Apparent Power (S) × Power Factor (p.f.)

The input power is the sum of the output power and the losses:

Input Power (Pin) = Pout + Losses

The losses in the transformer consist of copper losses and iron losses. Copper losses are caused by the resistance of the windings, while iron losses occur due to the magnetic properties of the core.

To calculate the copper losses, we can use the formula:

Copper Losses = \((Ih)^2\) × Rh +\((Il)^2\) × Rl

where Ih and Il are the high voltage and low voltage currents respectively, and Rh and Rl are the resistances per phase for high voltage and low voltage.

The iron losses are given as 3050 W.

With these values, we can now calculate the input power and efficiency at full-load and one-half of full load for both unity p.f. and 0.8 p.f.

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The light's intensity from an isotropic point source decreases inversely with the square of the distance from the source. intensity of light plays a significant role in determining its effect on the surrounding environment.

An isotropic point source of light emits light uniformly in all directions. As the light spreads out from the source, it becomes more spread over a larger surface area. Therefore, as the distance from the source increases, the same amount of light is spread over a larger area, resulting in a decrease in intensity.

Mathematically, the relationship between intensity (I) and distance (r) from the source can be expressed as:

I ∝ 1/r^2

The distance doubles, the intensity decreases by a factor of four. Similarly, if the distance triples, the intensity decreases by a factor of nine, and so on.

For an isotropic point source of light, the intensity of the light decreases inversely with the square of the distance from the source. Understanding this relationship is crucial in various fields, such as optics and lighting design, where the intensity of light plays a significant role in determining its effect on the surrounding environment.

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f(1) = v/2L, so fundamental frequency of the system = 343 m/s/2(7/3)L = 343 m/s*(7/6)L.

The fundamental frequency can be computed as 204.25 Hz.

343 m/s is the speed of sound BTW.

Answer:

t = 11.1 hours

Explanation:

The question says that, "A mobile advances at 20 m / s and travels a distance of 800 km. Determine the time in hours you use".

Given that,

Speed of a mobile, v = 20 m/s = 72 km/h

Distance, d = 800 km

We know that,

Speed = distance/time

So,

\(t=\dfrac{d}{v}\\\\t=\dfrac{800}{72}\\\\t=11.1\ h\)

So, it will take 11.1 hours.

Vector V is a vector with a magnitude of 6 miles per hour in a northwesterly direction on the coordinate plane. The magnitude of vector V is 6, and its direction is northwesterly.

cos θ = x / r, sin θ = y / r,

tan θ = y / x,

where θ is the angle between the vector and the x-axis, x and y are the coordinates of the vector on the coordinate plane, and r is the magnitude of the vector.

The magnitude of vector V: The magnitude of vector V is 6 miles per hour.

Therefore, r = 6.

The direction of vector V: the angle θ, the x and y components of vector V must be determined.

The angle between vector V and the x-axis is 45 degrees since the vector is going northwesterly, so the angle is halfway between 90 degrees for directly up and 0 degrees for directly to the right. Because the angle is 45 degrees, the x and y components are equal.

Therefore, the x and y components are both 6 / √2. Using

cos θ = x / r and sin θ = y / r,

The values of cos θ and sin θ.cos θ

 = 6 / √2 / 6

 = 1 / √2, and

sin θ = 6 / √2 / 6

       = 1 / √2.

Since cos θ = 1 / √2 and sin θ = 1 / √2, θ

                  = 45 degrees.

Tan θ = y / x

        = 1 / 1, so θ

        = tan⁻¹(1)

       = 45 degrees.

Therefore, the magnitude of vector V is 6, and its direction is northwesterly.

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To ensure that the net torque about the pivot is zero, the third force at point P should be applied in a direction that creates an equal and opposite torque to counterbalance the torques created by the other two forces.

To determine the direction and approximate magnitude of the third force, we need more information about the specific configuration of the wheel, the positions of the forces, and the magnitudes of the other two forces.

Net torque refers to the combined effect of all the torques acting on an object. Torque is a rotational force that causes an object to rotate around an axis. It depends on two factors: the magnitude of the force applied and the distance between the point of application of the force and the axis of rotation.

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An electric current produces a (c) magnetic field.

When an electric current flows through a conductor, it generates a magnetic field around the conductor. This relationship between electric current and magnetic fields is described by Ampere's law and is the basis for electromagnetism.

current is the rate at which the charge pases through an electric conductor in a circuit.

formula: I = Q/t

 where I is current, Q is charge and t is the time period.

An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is defined as the net rate of flow of electric charge through a surface.[1]: 2 [2]: 622  The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor.

In electric circuits the charge carriers are often electrons moving through a wire. In semiconductors they can be electrons or holes. In an electrolyte the charge carriers are ions, while in plasma, an ionized gas, they are ions and electrons.

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Answer:

4.5 x 10^4 x -2 x 10^-6 = -0.09N

Explanation:

-0.09N

It will need a force acceleration