Answer all of those questions and you will get the brainiest

Answer:

I beileve its A because energy is what gives the ability to do work

Explanation:

To correct the notes, Shondra, need to Switch "the energy of moving objects" and "the ability to do work" and place chemical energy under "Forms of energy."

Energy is the capacity of a object to do a work. More the energy object posses, more the work it can do.

The main categories of energy

Here, Sondra takes notes in class. The notes of Sondra is on the topic of energy.

The definition of energy is written as the energy of moving objects. This is not a correct definition of energy. It should be replaced with the definition of kinetic energy, which is “the ability to do work”.

Then the categories of the energy in her notes is described as, kinetic energy, potential energy and chemical energy.

Here, the first two are correct, but the chemical energy is not the type of energy. The chemical energy is the form of energy. Therefore, it should be place under forms of energy.

Shondra need to Switch "the energy of moving objects" and "the ability to do work" and place chemical energy under "Forms of energy." to correct the notes. The option 1 is correct.

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Answer:

All the planets would be remain in place and orbit in darkness

Explanation:

I'm assuming the sun didn't go nova, but it would sure kill off all life on Earth!

Have a great weekend!

Answer:

A- did this test :P

Explanation:

Answer:

go to my comment on your most recent question

Explanation:

Answer:

A) 11.25 m/s2

B) 9.8m/s2

C) 2.5 m/s2

Explanation:

Based on Newton's laws of motion, we know that the acceleration experienced by an object is directly proportional to the force acting on it, with its mass being the constant of proportionality.

Simply, we can represent this using the formula: F = Ma

Where F = force (N)

M = mass of the object (800kg)

a = acceleration of the object.

Making acceleration the subject of the formula, we have

acceleration = Force / mass

We can now use this to solve for the various forces.

A) Force = 9000 N

a = 9000/ 800 = 11.25 m/s2

B) Force = 7840 N

a = 7840/800 = 9.8m/s2

C) Force = 2000N

a = 2000/800 = 2.5 m/s2

Answer:

the orbital in which the electron is located relative to the atom's nucleus.

Explanation:

Answer:

the principal energy level of an electron refers to the shell or orbital in which the electron is located relative to the atom's nucleus.

The magnitude of the resultant force is 2661 kilograms, and its direction angle is 29.31°.

Let A = 1670 kilograms, N35°W and B = 1250 kilograms, S60°W, the resultant R of the two forces A and B can be determined using the parallelogram law of vector addition. The parallelogram law of vector addition states that:

In order to add two vectors A and B, you draw them to scale on a graph, put the tail of B at the head of A, then draw a vector from the tail of A to the head of B. This vector represents the resultant R.

The magnitude of R is given by the formula:

R = sqrt(A² + B² + 2AB cosθ)Where θ is the angle between A and B.Note that cosθ is positive if θ is acute (0° < θ < 90°), and cosθ is negative if θ is obtuse (90° < θ < 180°).

The direction angle of R is given by the formula:

tanθ = (B sinα - A sinβ) / (A cosβ - B cosα)where α and β are the angles A and B make with the horizontal axis, respectively.

α = 270° - 35° = 235°

β = 240°sinα = sin(235°) = - 0.819sin

β = sin(240°) = - 0.342

cosα = cos(235°) = - 0.574cos

β = cos(240°) = - 0.940

Now, substituting these values in the formula above:

tanθ = (1250(-0.342) - 1670(-0.819)

(1670(-0.574) - 1250(-0.940))= - 1042.2

1922.9= - 0.542θ = tan-1(0.542)θ = 29.31°

A points N35°W and B point S60°W, the angle between them is:

360° - 35° - 60° = 265°.Now, we can compute the magnitude of R:

R = sqrt(A² + B² + 2AB cosθ)= sqrt(1670² + 1250² + 2(1670)(1250)cos(29.31°))= 2661 kilograms.

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Answer:

I don't know if I can help you with that

Internal energy is energy stored in a system while heat is energy exchanged with the outside (and therefore cannot be stored).

The system's heat is equal to the internal energy. Because heat is neither created nor destroyed, when the ambient temperature rises, the system's temperature falls. As a result, the system becomes exothermic and negative and loses heat. Heat energy is the transfer of thermal energy from a high temperature to a low temperature, whereas thermal and internal energy is equal to the entire kinetic energy held by the molecules. Heat is the energy that moves from a body (or a system) to its surroundings as a result of a temperature differential. Heat transfers from a body or environment with a greater temperature to one with a lower temperature. The total amount of energy held within the body is known as internal energy.

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The kinetic frictional coefficient remains relatively constant with changes in normal force, while the static frictional coefficient increased with increasing normal force.

It can be varied due to following reasons:

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A wave is a disturbance that moves or travels through a medium such as air, water, or even space without causing any actual transfer of the medium from one point to another. It transfers energy from a source to a receiver, where it can be sensed or detected, but it does not transport any actual material.

A wave can be described by its amplitude, wavelength, frequency, and period. The distance between two consecutive peaks or troughs in a wave is referred to as its wavelength. The time required for one complete wave cycle to occur is referred to as the wave's period. The energy carried by a wave is proportional to its amplitude, which is the distance between the wave's maximum displacement and its equilibrium position. Waves can be classified into two categories: transverse and longitudinal waves.

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Answer:

Many objects are designed specifically to store elastic potential energy, for example: The coil spring of a wind-up clock. An archer's stretched bow. A bent diving board, just before a divers jump

Explanation:

Answer:

Elastic Potential Energy is stored in elastic items.

A example of Elastic Potential Energy is a rubber band. When you stretch it, and it shoots off your finger. Where the rubber band gives off Elastic Potential Energy, is when you stretch it on your fingers, before you let it go.

The maximum displacement angle of the bob is 13⁰.

The given parameters;

The maximum displacement of the bob is calculated by applying the principle of conservation of energy;

\(P.E = K.E\\\\mgh = \frac{1}{2} mv^2\\\\h = \frac{v^2}{2g} \\\\h = \frac{0.8^2}{2\times 10} \\\\h = 0.032 \ m\)

The maximum displacement angle is calculated as follows;

\(cos \theta = \frac{L-h}{L} \\\\cos \theta = \frac{1.25 - 0.032}{1.25} \\\\\cos \theta = \frac{1.218}{1.25} \\\\cos \theta = 0.9744\\\\\theta = cos^{-1}(0.9744)\\\\\theta = 13\ ^0\)

Thus, the maximum displacement angle of the bob is 13⁰.

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Answer:

The correct option is;

How loud or soft the sound is

Explanation:

The loudness of a sound wave is given by the amount of energy that the pressure wave carries and it is measured in decibels (dB) which is the relative intensity of the pressure wave of a sound to the standard pressure

A loud sound has a high amplitude and a soft sound has a low amplitude, such that as the amplitude of the sound is increased, due to increased energy input, the sound becomes louder, and as the amplitude of the sound is decreased due to reduced energy input, the sound becomes softer.

Answer:a licensed physician

Explanation: taking the osha test now.

A licensed physician is the one to carry out a post-exposure medical evaluation. (Option A)

Post-exposure Medical Evaluation is any medical evaluation started after exposure to a pathogen in order to prevent the infection from occurring.

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A magnetic field created by the electric current causes the compass needle to move. Option D is the correct answer.

When an electric current flows through a wire, it creates a magnetic field around the wire. The direction of the magnetic field is determined by the direction of the current. When a compass is placed next to the wire, the magnetic field created by the current causes the compass needle to move.

In a simple circuit made from a battery, a light bulb, and a wire, the electric current flows from the battery, through the wire, and through the light bulb, and then back to the battery. This creates a magnetic field around the wire, which can cause the compass needle to move when it is placed next to the wire. Hence, option D is correct choice.

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Answer:

the height of the is 6 m.

Explanation:

Given;

potential energy of the object, P.E = 50 J

Height of fall of the object, H = 12 m

Determine the mass of the object, m

P.E = mgh

m = (P.E) / (gh)

m = (50) / (9.8 x 12)

m = 0.425 kg

Let the height of the object at 25 J = h₂

mgh₂ = 25

h₂ = (25) / (mg)

h₂ = (25) / (0.425 x 9.8)

h₂ = 6 m

Therefore, the height of the object at 25 J is 6 m.

The soccer ball is moving at a speed of approximately 10.84 m/s just before it hits the player's chest.

The conservation of energy means that there is not any loss of energy but energy changes from one form to another.

To solve this problem, we can use the principle of conservation of energy, which states that the total energy in a system is conserved. In this case, we can assume that the system consists of only the soccer ball.

The initial energy of the soccer ball is given by its kinetic energy:

KE₁= 0.5 x m  x  v₁²

Where m is the mass of the soccer ball and v₁ is its velocity just after being kicked by the goalkeeper.

The final energy of the soccer ball just before it hits the player's chest is given by its potential energy and kinetic energy:

KE₂ + PE₂= m x  g x h₂ + 0.5 x m x v₂²

Where h₂ is the height of the player's chest above the ground, g is the acceleration due to gravity (9.81 m/s²), and v₂is the velocity of the soccer ball just before it hits the player's chest.

Since energy is conserved, we can equate the initial energy to the final energy:

KE₁ = KE₂ + PE₂

Substituting the expressions for KE₁and KE₂+ PE₂, we get:

(0.5 x m x v₁²) = (m x g x h₂) + (0.5 x m x v₂²)

Simplifying and solving for v2, we get:

v₂ = √(v₁² - 2 x g x (h₂ - 0.8))

Substituting the given values, we get:

v₂ = √((33 m/s)² - (2 x 9.81 m/s²) x (1.4 m - 0.8 m))

v₂= 10.84 m/s

Therefore, the speed of the soccer ball will be 10.84 m/s just before it hits the player's chest.

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Answer:

12.5

Explanation:

the formula v⁰y=usin∅

therefore substitution of the values

v⁰y= 22sin(35) = 12.5

Infrared radiation has longer wavelengths and lower energy per photon compared to visible radiation.

The electromagnetic spectrum's visible region has wavelengths between 400 and 700 nanometers, which correspond to the hues violet, blue, green, yellow, orange, and red. As opposed to visible light, infrared light has longer wavelengths, with a range of about 700 nanometers to 1 millimetre or more.

The energy of a photon is directly proportional to its frequency, per the Planck-Einstein connection (or inversely proportional to its wavelength). As a result, infrared radiation has lower frequencies and less energy per photon than visible radiation due to its longer wavelengths.

In conclusion, infrared radiation has longer wavelengths and lower energy per photon than visible radiation.

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When the temperature is high, the molecules move around a lot, which indicates that they have a lot of kinetic energy. High velocity causes the molecule to vibrate more quickly, which accelerates the sound wave.

The correct answer is :C.

Temperature is another aspect that impacts sound speed. Like voice, heat is almost like a kinetic energy. Molecules vibrate more quickly at higher temperatures due to having more energy, which speeds up sound wave propagation.

The temperature has an influence on the airspeed as well. Like sound, heat is almost like a kinetic energy. Atoms move more swiftly at higher temperatures because they have more energy. Since molecules vibrate more fast, sound waves may travel more quickly.

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The diameter of a copper conductor is 0,0028 mm.

Resistance: R = 2.6 Ω

Resistivity: ρ = 1.72×10⁻⁸ Ω.m

Long: L = 100 m = 100000 mm

To answer this question, the following formula is used:

ρ = R \(\frac{A}{L}\)

A = \(\frac{pL}{R}\)

A =  \(\frac{(1.72x10^{-8})(100000)}{2.6}\)

A = \(\frac{1,72 x 10^{-3}}{2,6}\)

A = 0,66 x 10⁻³

A = 6,6 x 10⁻⁴ mm

To find the diameter: use the formula for the area of ​​a circle

A = πr²

6,6 x 10⁻⁴ = (3.14)r²

r² = 6.6 x 10⁻⁴/3.14

r² = 2.1 x 10⁻⁴

r = \(\sqrt{2.1 x10^{-4}}\)

r = 1,4 x 10⁻²

r = 0,0014 mm

Diameter:

D = 2r

D = 2(0,0014)

D = 0,0028 mm

So, the diameter of a copper conductor is 0,0028 mm

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Answer:

E" =  Q/4πε₀√[(x² + R²)]³(x - (L - x)/√[(L - 2x)L/(x² + R²) + 1]³})

Explanation:

The electric field due to a charged ring of radius R at a distance x from the center of the ring when the axis of the ring is located on the x - axis is

E = Qx/4πε₀[√(x² + R²)]³

Since the rings are separated by a distance L, the electric field at point x due to the second ring is E' = -Q(L - x)/4πε₀[√((L - x)² + R²)]³. It is negative since it points in the negative x - direction.

So, the resultant electric field at x is E" = E + E' = Qx/4πε₀[√(x² + R²)]³ + {-Q(L - x)/4πε₀[√((L - x)² + R²)]³}

E" =  Qx/4πε₀√[(x² + R²)]³ - Q(L - x)/4πε₀√[((L - x)² + R²)]³

E" =  Q/4πε₀(x/√[(x² + R²)]³ - (L - x)/√[((L - x)² + R²)]³})

E" =  Q/4πε₀(x/√[(x² + R²)]³ - (L - x)/√[(L² - 2Lx + x² + R²)]³})

E" =  Q/4πε₀(x/√[(x² + R²)]³ - (L - x)/√[(L - 2x)L + (x² + R²)]³})

E" =  Q/4πε₀√[(x² + R²)]³(x - (L - x)/√[(L - 2x)L/(x² + R²) + 1]³})

So, the electric field at points along the x axis is

E" =  Q/4πε₀√[(x² + R²)]³(x - {(L - x)/√[(L - 2x)L/(x² + R²) + 1]³})

if the universe is 13.8 billion years old, how can we see 46 billion light years away because space has also been expanding?

When total distance to distant cosmic objects like galaxies is taken into account, their measurement is referred to as cosmological distance. This distance accounts for universe's ongoing expansion. Space itself stretches as a result of the universe's expansion, causing two things' distances to grow even when they are not physically moving apart.

One may observe objects that are currently positioned farther distant than the age of the universe thanks to this stretching of space. For a very long time, light emanating from these far-off objects has been travelling through space. Light has essentially travelled a greater distance than the actual physical distance between us and the object because of the universe's expansion during that time.

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Answer:-720j.

Explanation:

Answer:

No where

Explanation:

Current is the same everywhere in the circuit

The amplitude is 0.45 m,

The period is 1.37 s,

The wavelength is 4.13 m, and

The speed is 3 m/s.

A wave is a disturbance that travels through a medium, transferring energy without transferring matter. Waves can be characterized by their amplitude, frequency, wavelength, and speed.

There are many types of waves, including mechanical waves (such as sound waves and water waves) and electromagnetic waves (such as light and radio waves). Waves are important in many areas of science and technology, from communication to medicine to engineering.

To solve this problem, we can use the following formulas:

Amplitude (A) = distance from the trough to the crest / 2 = 0.9 / 2 = 0.45 m

Period (T) = time for one wave to pass = 1.37 s

Wavelength (λ) = distance from crest to crest (or trough to trough) = 4.13 m

Speed (v) = λ / T = 4.13 / 1.37 = 3 m/s

Therefore, the amplitude is 0.45 m, the period is 1.37 s, the wavelength is 4.13 m, and the speed is 3 m/s.

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Answer: 45.4249

Explanation: 12 gallons converted to liters = 45.4249 liters

Answer:45.42

Explanation:

1 Gallon = 3.785 liters

3.785 × 12 = 45.42

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The original speed of the bullet is 365.73 m/s

Initial velocity of the block is zero

and that o block -bullet after velocity is 0.73 m/s

Applying law of conservation of momentum:

Initial momentum = final momentum

mV(bi) + MV(wi) = mV(b) + MV(wf)

where m = mass of bullet = 10 g = 10^−2 ∣kg

M = mass of wood block = 5 kg

V(bI) = initial mass of bullet

V(wi) = initial mass of wood block

and V(bf) = V(wf) = 0.73 m/s

10^−2V(bi) + 0(10^−2 + 5)0.73

V(bi) = 5.01 × 0.73/10^−2

V(bi) = 365.73 m/s

Hence, the original speed of the bullet is 365.73 m/s

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Python based Flask is a microweb framework that is intended to be straightforward, lightweight, and simple to use. It Flask set of capabilities for creating web applications, such as routing, managing

Python-based Flask is a microweb framework. It offers a simple interface for creating web applications, letting programmers utilise the tools they want without being constrained in their inventiveness. Flask is a well-liked option for both small and big projects since it is portable and simple to use. Flask, which is frequently used for prototyping and creating APIs, enables for simple, effective development because to its modular architecture and tiny codebase. In addition, the huge Flask developer community offers a multitude of tools and plugins for customization and added functionality. For developers searching for a lightweight, adaptable framework for their web development needs, Flask is an excellent option.

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