QUESTION 1

What is amperage?


is the rate of doing work.


is the rate of flow of protons in electric current.


represents the amount of pressure behind electron flow.


is the rate of flow of electrons in electric current.

2 points

QUESTION 2

What is Voltage?


is the rate of doing power.


represents the amount of pressure behind electron flow.


is the rate of doing work.


is the rate of flow of electrons in electric current.

2 points

QUESTION 3

What is Power?


is the rate of flow of protons in electric current.


is the rate of flow of electrons in electric current.


is the rate of doing work.


represents the amount of pressure behind electron flow.

2 points

QUESTION 4

If we multiply volts times amps we get what?


power


circuit


work


current

2 points

QUESTION 5

What are two ways alternating currents are similiar?


In both AC and DC electrons flow in the same pattern.


In both AC and DC, the flow of electrons changes directions back and forth.


Both AC and DC are only possible in certain materials with atoms that will allow electron flow.


Both AC and DC involve the flow of electrons.

4 points

QUESTION 6

How does the flow of electrons flow in an alternating current?


The flow of electrons is always slower in an alternating current than within a direct current.


The flow of electrons is not constant and forward; it changes direction back and forth.


Electrons flow from from a higher affinity to that of a lower affinity.


Electron flow is constant and only in a forward direction.


2 points

QUESTION 7

What is the flow like in a direct current?


The flow of electrons is not constant and forward; it changes direction back and forth.


The flow of electrons is constant and only in a forward direction.


The flow of electrons go from a higher affinity to a lower affinity.


The flow of electrons are always faster in a direct current.

2 points

QUESTION 8

How is an electric current able to flow?


Electrons flow from the higher affinity to lower affinity and electrical current is generated.


Protons flow from the higher affinity to lower affinity and electrical current is generated.


The movement of protons from one atom to another leads to an electric charge.


The movement of electrons from one atom to another atom in a line results in a flow of electric current.

2 points

QUESTION 9

How do electrons move from the two different types of metal in a battery?


Protons flow from the metal with the lower affinity to the metal with higher affinity and electrical current is generated.


Electrons flow from the metal with the lower affinity to the metal with higher affinity and electrical current is generated.



Electrons flow from the metal with the higher affinity to the metal with lower affinity and electrical current is generated.


Protons flow from the metal with the higher affinity to the metal with lower affinity and electrical current is generated.

Answer:

D

Explanation:

The correct answer is D

How does the thickness of the wire affect the strength of an electromagnet?

Answer:

How does the thickness of the wire affect the strength of an electromagnet

Explanation:

Generally, electromagnet strength increases with an increase in wire thickness. From the theory of electric circuit, the resistance of an electric wire is inversely proportional to the cross sectional area of the electric wire. Mathematically, we have:

R ∝ 1/A

Where:

R is the resistance of the electric wire; A is the cross sectional area of the wire. Therefore, for a large cross sectional area, the resistance will be very low, and the electric current passing through the electromagnet will be high. This will create a very high magnetic field. Thus, the question that Maya will most likely answer is: How does the thickness of the wire affect the strength of an electromagnet.

Explanation:

The magnitude of a vector v can be found using Pythagorean's theorem.

||v|| = √(vₓ² + vᵧ²)

||v|| = √((-309)² + (187)²)

||v|| ≈ 361

You can find the angle of a vector using trigonometry.

tan θ = vᵧ / vₓ

tan θ = 187 / -309

θ ≈ 149° or θ ≈ 329°

vₓ is negative and vᵧ is positive, so θ must be in the second quadrant.  Therefore, θ ≈ 149°.

Answer:

2 answers. Pay attention

Explanation:

Acellus asks you to find Magnitude and vector. The questions are in separate answers. Type in 361 whenever it asks for Magnitude. When it asks for Vector type in 149.

Magnitude is 361

Vector is 149

An unbalanced force can cause an object to change its speed and/or direction. This change in momentum is governed by Newton's second law of motion. Examples of such changes can be observed in phenomena like non-circular motion.

An unbalanced force can cause an object to not only change its speed, but also its direction. This phenomenon is explained by Newton's second law, which describes force in terms of its ability to change momentum over time. A force, which can be understood as a push or a pull, always has a size and direction. If we apply a force to an object, the momentum of the object changes in the direction of this applied force.

A clear illustration of this principle can be found in nonuniform circular motion, where a particle can move in a circle and speed up, slow down, or change direction due to an external force. In other words, any change in velocity, meaning in speed or direction, requires an outside force according to Newton's first law, also known as the law of inertia.

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Answer:

B.) superficial external beam radiation therapy

Explanation:

This is used for skin cancer, correct on edge.

Superficial radiotherapy refers to radiation that does not penetrate deep into your body. Superficial external beam radiation therapy is used by the doctor for skin cancer.

External radiation includes superficial radiotherapy. It is used to treat cancer that has spread to or near the skin's surface.

The term "superficial radiotherapy" refers to radiation that does not penetrate deep into your body.

Subtle radiotherapy can be performed using low-intensity x-rays (photons) or electrons. Your doctor will determine which one you require.

This is determined by the size and depth of cancer, as well as its location in the body.

Hence Superficial external beam radiation therapy is used by the doctor for skin cancer.

To learn more about Superficial radiotherapy refer to the link;

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Answer:

Mechanical waves need matter to transfer energy while electromagnetic waves do not. ... Waves change direction when they move from one material into another (matter) through the process of refraction. The wave will change direction when the speed of the wave changes.

According to de Broglie's hypothesis, matter is associated with matter waves. Any massive particle moving with a certain velocity can be represented as a superposition of waves whose maxima is the position of the particle.

Learn more about matter waves:

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Answer:

d. 50 C

Explanation:

In this problem, we have to add 800 ml of water at 20 Celsius to 800 ml of water at 80 Celsius.

According to the 2nd law of thermodynamics, heat transfers from hot to cold temperature.

The quantity of both the different waters is equal so this makes it very easy. All we have to do is find the mean of both the temperatures:

Final temperature = (20 C + 80 C)/2

= 50 Celsius

Answer: D. 50 C

Explanation:

The acceleration of the skateboarder on road A, road B and road C is 7,75 m/s² , 3,87 m/s² and 9,68 m/s².

Given

mᴀ = mʙ = mᴄ = 62 kg

Fᴀ = 480N

Fʙ = 240 N

Fᴄ = 600 N

Asked

aᴀ, aʙ, aᴄ = ?

Solution

     Based on the question, we know that the mass of road A, road B and road C are same. And, the formula of acceleration is

             [tex]\boxed{\text{a} = \frac{\text{F}}{\text{m}}}[/tex]

so, we can calculate the acceleration of road A, road B and road C.

• for road A

[tex]\text{a}_A = \frac{\text{F}_A}{\text{m}}[/tex]

[tex]\text{a}_A = \frac{480 \text{N}}{\text{62 \text{kg}}}[/tex]

aᴀ = 7,7419 m/s²

aᴀ = 7,75 m/s²

• for road B

[tex]\text{a}_B = \frac{\text{F}_B}{\text{m}}[/tex]

[tex]\text{a}_B = \frac{240 \text{N}}{62 \text{kg}}[/tex]

aʙ = 3,8709 m/s²

aʙ = 3,87 m/s²

• for road C

[tex]\text{a}_C = \frac{\text{F}_C}{\text{m}}[/tex]

[tex]\text{a}_A = \frac{600 \text{N}}{62 \text{kg}}[/tex]

aᴄ = 9,6774 m/s²

aᴄ = 9,68 m/s²

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1. Learn More About The First Newton Law https://brainly.com/question/10454047

2. Learn More About Acceleration https://brainly.com/question/418785

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Grade: Middle School

Subject: Physics

Chapter: Motion and Kinematics

Keywords: Motion, Mass, Acceleration, Newton, Newton Law, Force, Kinematics

To find the acceleration of the skateboarder, use the provided data and the equation: acceleration = (final velocity - initial velocity) / time. Plug in the values and ensure all units are consistent, then solve.

To calculate the acceleration of the skateboarder, you need to use the data given in the table and the equations of motion. Assume the data provides initial velocity (Vi), final velocity (Vf), and time (t).

The acceleration can be calculated using the formula: acceleration (a) = (Vf - Vi) / t. Make sure the velocities are in the same units and the time is in seconds to get the acceleration in meters per second squared (m/s²).

Plug in the values from the table into this equation to find the acceleration. For instance, if Vi = 2 m/s, Vf = 4 m/s, and t = 1 s, Then the acceleration would be (4 m/s - 2 m/s) / 1 s = 2 m/s².

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Answer:

Input force = 100N

Explanation:

Formula

Mechanical Advantage = output force / input force.

Givens

MA = 6

Output Force = 600 N

Input Force = ??

Solution

6 = 600 / x

Multiply both sides by x

6x = (600/x)*x

6x = 600                

The xs cancel. Now Divide by 6

6x/6 = 600/6

x = 100 N

Answer:

100n

Explanation:

Answer: the two states that are fluid are;-

#{1} liquid

#{2} gas

Explanation:

as we know that there are mainly three states of substance

but among them only two of them can fluid and takes the shape of the container that are liquid and gas

Liquids and gases are considered fluids because they flow and adapt to the shape of their containers. Solids do not exhibit this behavior. Hence, the correct answer is Option D.

Matter most commonly exists in four phases: solid, liquid, gas, and plasma. Each state has unique properties:

Liquids and gases are considered fluids because they yield to shearing forces and can flow to adapt to the shape of their containers. Solids do not exhibit this behavior.

Therefore, the correct answer is Liquids and gases (Option D).

Complete question:-

Fluids can flow and change shape to fit their containers. Which two states are fluids?

A. Solids and plasmas

B. Gases and solids

C. Solids and liquids

D. Liquids and gases

Explanation:

Use sine and cosine to find the vertical and horizontal components.

31.0 km × sin 25.0° = 13.1 km north

31.0 km × cos 25.0° = 28.1 km east

She would have to walk 13.1 km north and 28.1 km east.

Answer:

White dwarf

Explanation:

The Hertzsprung-Russell Diagram shows the mass of stars, the color, temperature and their  brightness.Stars that lie below the main sequence area such as the White dwarf have the smallest initial mass.A white dwarf star has a mass less than that of the Sun.

Answer:

White Dwarf

Explanation:

Answer:

It's weight would decrease over time.

Explanation:

The cold coke is going to stabilise in the room temperature. This causes the coke to heat up to room temperature. When the coke heats up, some molecules acquire enough kinetic energy that the evaporate. The evaporation of the molecules causes a decrease in weight.

Hope it helped!

Answer:

it's weight will decree over time

Explanation:

because the ice will tern to winter than it will evaporate

Answer:

We know that force applied per unit area is called pressure.

Pressure = Force/ Area

When force is constant than pressure is inversely proportional to area.

1- Calculating the area of three face:

A1 = 20m x 10 m =200 Square meter

A2 = 10 mx 5 m = 50 Square meter

A3 = 20m x 5 m = 100 Square meter

Therefore A1 is maximum and A2 is minimum.

2- Calculate pressure:

P = F/ A1 = 30 / 200 = 0.15 Nm⁻²  ( minimum pressure)

P = F / A2 = 30 / 50 = 0.6 Nm⁻²   ( maximum pressure)

Hence greater the area less will be the pressure and vice versa.

Answer:

D

Explanation:

Wycleff heard a low pitch sound the whole time, so the police car must have been moving away from him.  So he was at block 1.

Lilly observed a Doppler effect (change in pitch) first.  So the car must have passed her first, so she was at block 4.

Emilia observed a Doppler effect after Lilly.  So the car passed her after it passed Lilly, so she was at block 12.

Quincy heard a high pitch sound the whole time, so the police car must have been moving toward him.  So he was at block 17.

Wycleff is on block 1, Lilly is on block 4, Emilia is on block 12, and Quincy is on block 17. Therefore, the correct option is option D.

The apparent change in frequency caused by an observer moving relative to the wave source is called as that of the Doppler effect, Frequency deviation, or simply Doppler, according to the circumstances. The phenomenon is named after Christian Doppler, the Austrian physicist who originally observed it in 1842.

The entire time, Wycleff would hear a low-pitched sound, suggesting that the police car was moving away from him. As a result, he was in block 1.

The very first thing Lilly saw was a Doppler effect (a pitch change). Due to her position in block 4, the car should really have bypassed her first.

Emilia saw a Doppler effect after Lilly. She was at block 12 whenever the car passed Lilly before overtaking her.

Quincy had been hearing a high-pitched sound the entire time, which signaled that perhaps the police car was coming. As a result, he was in block 17.

Therefore, the correct option is option D.

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Answer:

The right hand rule states that: to determine the direction of the magnetic force on a positive moving charge, ƒ, point the thumb of the right hand in the direction of v, the fingers in the direction of B, and a perpendicular to the palm points in the direction of F.

Explanation:

gooogle.......

For this case we have by definition, that the Ampere, is the unit of electric current intensity.

For its part, the electric current is a measure of the velocity at which the electric charge flows.

The symbol of the current is A. We have that 1 Ampere is equivalent to an electric charge of a coulomb per second.

[tex]1A = \frac {1C} {s}[/tex]

Answer:

[tex]1A = \frac {1C} {s}[/tex]

Answer:

A Resistor.

Explanation:

Hope my answer has helped you and if not i'm sorry.

Answer: I think the answer is D. I'm sorry if it is incorrect.

Answer: C. Jason has more muscle mass than Ryan

Explanation:

Answer:

For any object, the greater the force that's applied to it, the greater its acceleration will be.

Explanation:

The statement can be explained using Newton's second law of motion that states, "A net Force 'F' applied on a body produces acceleration 'a' in it which is directly proportion to the Force applied and inversely proportional to the mass of the object."

We can conclude:

F ∝ a

Answer:

The other guy is correct. Acceleration

Explanation:

Answer:

The answer would be drug use, addiction, dependence, tolerance, and withdrawal.

Answer:

D. drug use, tolerance, dependence, addiction, and then withdrawal

Explanation: took the test rn on edge 2020

Answer:

A bar magnet is exactly 2 poles, if you cut it in half, you would have 4 poles.

Answer:

four

Explanation:

Answer:

55.3 N, 223.3 N

Explanation:

First of all, we can find the angle of the inclined plane.

We have:

L = 5 m the length of the incline

h = 1.2 m is the height

We also have the relationship

[tex]h = L sin \theta[/tex]

where [tex]\theta[/tex] is the angle of the incline. Solving for the angle,

[tex]\theta= sin^{-1} (\frac{h}{L})=sin^{-1} (\frac{1.2 m}{5 m})=13.9^{\circ}[/tex]

Now we can find the components of the weight of the box, which is the force that the box exerts on the plank. Calling W = 230 N the weight of the box, we have:

- Component parallel to the incline:

[tex]W_{par} = W sin \theta = (230 N)(sin 13.9^{\circ}) =55.3 N[/tex]

- Component perpendicular to the incline:

[tex]W_{per} = W cos \theta = (230 N)(cos 13.9^{\circ}) =223.3 N[/tex]

Answer:

Fluids become more dense at the inner portion of the convection currentsxplanation:

Fluids become more dense at the inner portion of the convection currents. This is driven by the cyclical pattern where warm, less dense fluid rises and cool, denser fluid sinks. Convection is a key mechanism of heat transfer seen in various natural phenomena.

Convection currents describe the movement caused by the variations in temperature and density within a fluid. **Differences in density** cause less dense, warm regions to rise while more dense, cool regions sink. This process creates a cyclical pattern known as convection. Specifically:

Therefore, the correct option is that fluids become more dense at the inner portion of the convection currents. This shows the fundamental principle of convection where heat transfer causes fluid motion, leading to the continuous rising of warm fluid and sinking of cool fluid.

Answer:

Before I answer I want to say this Calibri is the superior font and green is the only highlight color.

The correct answer is C: Electrons are transferred → Ions form → Ions are attracted to each other

Explanation:

Generally, an ionic compound is formed between electropositive and electronegative elements.

Normally every element wants to occupy the inert gas configuration in order to be stable. During the ionic bond formation the electropositive metal will lose the electrons and forms cation. The electronegative metal will gain electrons and forms anion.

The cation is positively charged and the ion is negatively charged. Due to the coulombic force of attraction, the ions will be attracted to each other and forms an ionic compound.

One can take the example of NaCl where Na will lose one electron and form. Chlorine will take one electron and form. These ions are attracted and sodium chloride is formed.

Hence the formation of an ionic compound follows these steps-

1- First electrons are transferred.

2-The ions are formed

3-The ions are attracted to form the compound

Answer:

2.7

Explanation:

This is because fluorine has an atomic number 9

Answer:

2, 7

Explanation:

Fluorine has 9 electrons and electronic structures are written listing the amount of electrons in each shell/energy level starting from the first one.

The first one can hold a maximum of 2 electrons and the 2nd, 3rd and 4rth can hold a maximum of 8

Answer:

=319Hz

Explanation:

This question is on sound waves

General formulae;

Frequency of observer= f of source*[ (v of sound+ v of observer)/(v of sound-v of source)]

where f is frequency and v is velocity

Given;

Velocity of sound = 340m/s

frequency of source = 300 Hz

Velocity of observer=0m/s

Velocity of source/truck= 20m/s

Substitute values in the formulae;

Frequency of observer= 300× {(340+0)/(340-20)}

                                       =300×{ 340/320}

                                       =300×340/320

                                       =318.75

                                       =319Hz

The answer is the second option "watt." Watt is the unit of power measured by one joule per second. Watts are a amount of electrical power and measured by the rate of energy transfer between two things.

Hope this helps.