If the magnetic field steadily decreases from B to zero during a time interval t , what is the magnitude E of the induced emf?
Express your answer in terms of x,y ,t , and B .

The correct answer is b. temporary threshold shift. This is a common occurrence after exposure to excessive noise, where the individual experiences a temporary hearing loss that typically lasts a few hours.

If this type of exposure to noise continues, it can eventually lead to permanent hearing loss, known as noise-induced hearing loss. TTS results in a decreased ability to hear soft sounds, as well as a decreased ability to understand speech. It is caused by the destruction of the stereocilia, or tiny hairs, in the inner ear that are responsible for detecting sound. These hairs are not replaced and become permanently damaged if exposed to excessive noise for too long. TTS can be prevented by avoiding loud noises, wearing ear protection, and limiting the duration of exposure to loud sounds.

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The elastic potential energy of the spring is 1.6 J.

The elastic potential energy of the spring is the energy stored in the spring and it is calculated as follows;

U = ¹/₂kx²

where;

The given parameters include;

U = ¹/₂kx²

U = ¹/₂ (80) (0.2)²

U = 1.6 J

Thus, the elastic potential energy of the spring is a function of the spring constant and the extension of the spring.

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Answer:

The second law of motion states that the force of an object is equal to its mass times its

acceleration.

o A change in motion occurs only if a net force is exerted on an object.

o A net force changes the velocity of the object, and causes it to accelerate.

o If an object is acted upon by a net force, the change in velocity will be in the

direction of the net force.

o The acceleration of an object depends on its mass.

o The more mass an object has or the more inertia it has, the harder it is to

accelerate.

o More mass means less acceleration if the force acting on the objects is the same.

Explanation:

Explanation:

The force exerted by the earth on a falling baseball is smaller than the force exerted by the earth on a falling bowling ball.  However, since the baseball has less mass than the bowling ball, the two accelerate at the same rate.  This is known as Galileo's gravity experiment, but it also demonstrates Newton's second law.

When a bowling ball hits a pin, the pin pushes back with equal and opposite force.  Because the bowling ball has a large mass, the acceleration caused by the force is small.  Since the pin has a small mass, the acceleration caused by the force is large.

It is observed that sedimentary rock was generated by compacting sedimentary layers; a meteorite struck Earth after the sedimentary layers developed. Option D is correct.

Space is captured by satellite camera systems in a variety of electromagnetic frequencies.

A satellite imager, in fact, is a detector equipped with a sensor that actively scans the changing surface of the Earth, registering the signal generated or reflected by the item or the surrounding region.

This image of northern Algeria was captured by a satellite camera in orbit, and it shows an impact crater, sedimentary rock strata, and a stream channel pouring out of the crater.

Algeria is located at the northernmost tip of the African continent. Algeria's terrain is dominated by the Sahara Desert and two mountain ranges.

It is observed that sedimentary rock was generated by compacting sedimentary layers; a meteorite struck Earth after the sedimentary layers developed; and water erosion formed a stream channel from the meteorite's impact zone.

Hence,option D is correct.

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When two forces of magnitude 10N and 15N are applied antiparallel in a plane, the magnitude and direction of the resultant vector is given as follows: Resultant magnitude: The resultant vector magnitude of two antiparallel forces is the difference between their magnitudes.

In this case, the magnitude of the 15 N force is greater than that of the 10 N force, so the direction of the resultant vector is in the direction of the 15 N force. The magnitude of the resultant vector, R is: R = F₂ - F₁

Where ,F₁ = 10 N and

F₂ = 15 N

Therefore, R = F₂ - F₁

R = 15 N - 10 N

R = 5 N

Resultant direction: The direction of the resultant vector of two antiparallel forces is the direction of the greater force. In this case, since the 15 N force is greater than the 10 N force, the direction of the resultant vector is in the direction of the 15 N force. Hence, the direction of the resultant vector is to the left because the 15 N force acts to the left. Thus, the magnitude and direction of the resultant vector are 5 N and to the left, respectively. Hence, the magnitude of the resultant vector is 5N and the direction of the resultant vector is to the left.

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Answer:

Explanation:

A simple pendulum consists of a mass (usually represented as a small object or bob) attached to a string or rod of negligible mass. The mass is free to swing back and forth under the influence of gravity.

In the figure, the point of suspension is denoted by "O," and the mass (bob) is represented by the small circle. The string or rod is represented by the vertical line connecting the point of suspension to the bob.

Amplitude:

The amplitude of a pendulum refers to the maximum displacement or swing of the bob from its equilibrium position. In the figure, the amplitude can be represented by the angle formed between the vertical position and the position of the bob when it swings to its maximum distance on one side. It is usually denoted by the symbol "A."

Effective Length:

The effective length of a pendulum refers to the distance from the point of suspension to the center of mass of the bob. It represents the distance over which the mass swings back and forth. In the figure, the effective length can be measured as the length of the string or rod from the point of suspension to the center of the bob. It is usually denoted by the symbol "L."

It is important to note that the amplitude and effective length of a simple pendulum affect its period of oscillation (the time taken for one complete swing). The relationship between these parameters and the period can be described by mathematical formulas.

Overall, the simple pendulum is a fundamental concept in physics and provides a simplified model for understanding oscillatory motion and the principles of periodic motion.

Answer:

propulsion

Explanation:

The clock face rule can be used to determine this magnet's polarity. Each face of a loop will display the North Pole if indeed the current is running anticlockwise. The South Pole is visible on the loop's face.

Correct option is, E.

This dipole establishes an axis that splits the surface of the Earth into two geomagnetic poles, which are antipodal points. Its magnetic north pole is located at 72.68°W longitude with 80.65°N latitude, or the magnetic south pole is located at 107.32°E longitude or 80.65°S latitude, according to the WMM2020 coefficients in 2020.0.

In the plane of a table inside the loop, the magnetic field is directed perpendicularly downward; beyond the loop, it is directed outward. The north pole is on the plane's top side, and the south pole is on the lower side.

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The ball with the greatest momentum is BALL B, which has a momentum of 36kg.m/s.

The Momentum of an object is simply the product of the mass of the object and its velocity. It is expressed as:

\(p = mv\)

Where p is momentum, m is mass and v is velocity.

We substitute

BALL A

\(p = 0.45kg * 50m/s\\\\p = 22.5kg.m/s\)

Momentum of ball A is 22.5kg.m/s

BALL B

\(p = 0.45kg * 80m/s\\\\p = 36kg.m/s\)

Momentum of ball B is 36kg.m/s

BALL C

\(p = 0.45kg * 25m/s\\\\p = 11.25kg.m/s\)

Momentum of ball C is 11.25kg.m/s

Hence, the ball with the greatest momentum is BALL B, which has a momentum of 36kg.m/s.

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Answer:

Ball B has the greatest momentum out of all of them.

Explanation:

Given :

A farmer is pushing a 75 kg plow across a field with 700 N at an angle of 35 degrees above the ground.

The kinetic frictional force between the plow and the field is 250 N.

To Find :

The Normal Force from the ground onto the plow.

The acceleration of the plow.

Solution :

Normal force = mg + F sin Ф

= 75×10 + 700 × sin 35°

= 1151.50 N

Now,

ma = 700 cos Ф - 250

75×a = 323.4

a = 4.31 m/s²

Hence, this is the required solution.

Answer:

c

Explanation:

heat is thermal energy transferred from a hotter system while temperature is a measure of the average kinetic energy of atoms or molecules in the system

Answer:

5kg of $3.80 is better value

Answer:

Explanation:

5 kg of potatoes for $3.80 is a better value

Answer:

Air molecules and suspended water droplets collide as they swirl around in the clouds. Warmer air and water droplets rise, carrying charges with them. The result is an excess of positive charge near the cloud tops, and an excess of negative charge in the bottom layers of the clouds.

they are knocked off some ice and added to other ice as they crash past each other

Explanation:

Answer:

Brightness.

Explanation:

very bright.

Light energy with very high amplitude would be perceived as very bright or intense light.

Waves with a big maximum displacement or height relate to light energy with a very high amplitude.

This large amplitude equates to a greater intensity or brightness of light in terms of perception.

When high-amplitude light waves enter our eyes, they excite light-sensitive cells, such as the cones in our retinas, more powerfully.

As a result of the increased stimulation, the sense of a bright or powerful light source is formed. The magnitude of the light's amplitude is interpreted by the human visual system as a measure of its intensity, allowing humans to distinguish between dimmer and brighter light sources.

Thus, in human visual experience, light energy with a very high amplitude is related with a heightened feeling of brightness or intensity.

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Answer:

range of wavelength and frequencies is the answer

Explanation:

the defintion is:

the range of wavelengths or frequencies over which electromagnetic radiation extends.

and also

It is the most complete range of all types of radiation that has both electric & magnetic fields and travels in waves.

Making electromagnetic spectrum a electromagnetic spectrum

Range of wavelength and frequencies being the answer

Answer:

radiation!

Explanation:

Answer: Radiation is the thermal transmission of heat energy across space.

Explanation:

The average velocity of the freely falling object released from rest that has an instantaneous velocity of 80 m / s at 9 s is 40 m / s

V = ( u + v ) / 2

V = Average velocity

u = Initial velocity

v = Final velocity

u = 0

v = 80 m / s

V = ( 0 + 80 ) / 2

V = 40 m / s

Average velocity is the overall velocity during a given period. It is found using the average value of initial and final velocities is the acceleration is constant.

The given question is incomplete. The complete question is:

If the instantaneous velocity of a freely falling object 9.0 s after it is released from a position of rest is 80 m / s. What is its average velocity during this 9.0-s interval?

Therefore, the average velocity of the freely falling object released from rest is 40 m / s

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When he is at school, a Hispanic teenager will likely use English as his primary language. at home, his family encourages him to speak Spanish. This linguistic process is known as code-switching.

The linguistic process that is being described in the question is known as code-switching. Code-switching is the ability to switch between different languages or dialects in a conversation or even within a single sentence. In this case, the Hispanic teenager is using English as their primary language in school, while their family encourages them to speak Spanish at home.

Code-switching is a common occurrence in multilingual societies and can happen for a variety of reasons, including social status, cultural identity, or simply for convenience. It is important to note that code-switching is not a sign of poor language skills but rather a reflection of the complex linguistic and cultural identity of the individual. Being bilingual or multilingual can be an asset in today's globalized world, and code-switching is just one example of how individuals navigate multiple languages and cultures in their daily lives.

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Power tools must be used since all interior walls are reinforced is a consideration when forcing interior walls.

The correct option is  C.

The load of the floor or roof construction above them is supported by load-bearing walls, also referred to as "bearing walls." They are made to transfer weight from the roof to the foundation by passing through the flooring. A bearing wall, also known as a load-bearing barrier or a structural wall, supports the entire weight of the home. This wall assists in distributing the weight of the building from the roof to the base, and its loss could lead to the building collapsing.

Tom proposes going up to the attic or basement to check which direction the joists run to see if a wall is load-bearing. The wall is still most likely not load-bearing if it runs parallel to the joists.

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The complete question is -

What is a consideration when forcing interior walls?

A-The wall coverings often hide interior metal framing.

B-The walls may be load-bearing and affect structural integrity.

C-Power tools must be used since all interior walls are reinforced.

D-Forcing the wall will require firefighters to work in a team of two.

Let's take this problem step-by-step:

What does this problem want to solve:

 ⇒ find two pendulums that will swing back and forth in the least amount

     of time

Therefore:

 ⇒ must find the equation that calculates that period or swing time of a

     pendulum

     Equation: \(T = 2\pi \sqrt{\frac{L}{g} }\)

Based on the equation:

  ⇒ the longer the string is ⇒ the greater the swing time

Thus:

 ⇒ pendulum Y and Z will have the least amount of swing time

Answer: (B)

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Answer:An object has balanced forces acting on it and constant velocity.

Explanation:

Explanation:

i think the sun is near the earth that's why we see the sun during the day and the moon is behind the sun so when it is in the night the moon will remove in front the sun and there will be night I hope it will help you

Answer:

60N

Explanation:

Given parameters:

Combined mass = 50kg

Acceleration  = 1.2m/s²

Unknown:

Force to propel  = ?

Solution:

From Newton's second law of motion, we know that;

       Force  = mass x acceleration

 So;

         Force  = 50 x 1.2  = 60N

Answer:

60N

Explanation:

Answer:

T = 0.009 s

Explanation:

It is given that, an OC makes about 112 full wing swings in one second. We need to find the oscillation period of the wasp's wings.

No of oscillations per unit time is called the frequency of an object. It means 112 is the frequency of wing swings. Let T is the oscillation period. It is equal to the reciprocal of frequency as follows :

\(T=\dfrac{1}{f}\\\\T=\dfrac{1}{112}\\\\= 0.00892\ s\\\\=0.009\ s\)

Hence, the oscillation period is 0.009 s.

Answer:

speeding up

Explanation:

because its speeding up, theres going to be more newtons in the back

i really hope this is right, tell me if so