a circular coil with an area of 0.0500 m2 is wrapped with 500 turns of wire and is placed in a uniform magnetic field perpendicular to its plane. if the field changes in value from -0.100 t to 0.150 t in an interval of 0.500 s, what is the magnitude of the average voltage induced in the coil?

Answer:

One immediate division you might have seen on the periodic table is that the elements and their corresponding boxes are organized into vertical (up and down) columns and horizontal (left to right) rows. This link shows a periodic table with the columns (groups) and rows (periods) labeled. You should open that link up and keep it with you to compare with the explanations and examples in this section. In chemistry, we call the vertical organization either columns or groups. Whereas, the horizontal organization is called rows or periods. The columns or groups are usually labeled at the top of the periodic table by numbers; 1 through 18. On they periodic table that you have open one example of a group is group 17. It contains the elements fluorine, chlorine, bromine, iodine, and so on. The periods on most periodic tables are label on the left side of the periodic table by number 1 through 7. On the periodic table you have open one example of is period 4. It contains the elements potassium, calcium, scandium, titanium, and so on. In general, knowing the groups is a lot more important than knowing the periods. A lot of common properties between elements are shared if they are in the same group. For example, fluorine and chlorine are both in the same group and are both gases at a normal room temperature.

Explanation:

The charged paint has been spread in a very thin uniform layer over the surface of a plastic sphere with a diameter of 11.0 cm, resulting in a charge of -11.0 μC. The charge of the paint indicates that there is an excess of negative charge on the sphere.

When a charge is spread over a conductive object, such as a metal sphere, it distributes itself uniformly on the surface. However, in this case, the sphere is made of plastic, which is an insulator. Due to the insulating nature of plastic, the charge will not be able to move freely across the surface.

The charge on the plastic sphere creates an electric field around it. This electric field affects other charged objects in its vicinity. For example, if a positively charged object is brought close to the negatively charged sphere, it will experience an attractive force due to the electric field.

The magnitude of the charge (-11.0 μC) does not depend on the size or diameter of the sphere. It solely represents the amount of excess negative charge on the surface.

To summarize, spreading the charged paint over the plastic sphere creates a negatively charged surface. This charge distribution creates an electric field around the sphere, influencing the behavior of other charged objects in its vicinity. The magnitude of the charge (-11.0 μC) indicates the amount of excess negative charge on the sphere.

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The phenomena addressed is pertinent to physics, especially the concept of electrostatics. They reiterate how excess negative charge quickly moves to the outer surface of spheres due to electrostatic repulsion, creating an electric field outside similar to that of a central point charge. This is crucial for achieving a uniform electric potential over the sphere surface.

The subject of your question pertains to physics, specifically, electrostatics. Here, a plastic sphere is coated with a thin layer of charged paint, with the given charge being -11.0 μC. You are dealing with the phenomena of distribution of charge on the surface of objects. When an object is charged, the excess charge tends to move to the surface of the object due to electrostatic repulsion.

The radius of the given sphere would be half the diameter, which equates to 5.5 cm or 0.055 m. Now, to summarize the behavior of the sphere: the electric field inside a charged sphere is zero, and the electric field outside can be considered the same as the electric field of a point charge located at the center of the sphere. Meanwhile, the charge on the sphere is at the surface.

The fact that the charge is uniformly distributed on the sphere's surface and does not remain inside can be linked to the concept of electric potential, which is the same at every point on the surface of a sphere. This phenomenon occurs because the excess charge quickly moves to the outer surface due to the repelling effect amongst themselves.

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The constant velocity that the spacecraft must travel is : 3.49 * 10⁸ m/s

Given data :

Distance of star from earth = 4.3 light years

Observers time = 3.7 years

Observers time = 3.7 * 365 * 24 * 60 * 60

Distance of star from earth = 4.3 * 9.46 * 10¹⁵

The velocity the spacecraft must travel will be calculated using the equation

V = distance / time

   = ( 4.3 * 9.46 * 10¹⁵ ) / ( 3.7 * 365 * 24 * 60 * 60 )

   = 3.49 * 10⁸ m/s

Hence we can conclude that The constant velocity that the spacecraft must travel is : 3.49 * 10⁸ m/s

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Attached below is the missing detail related to the question

The constant velocity must the spacecraft travels from the earth will be 3.49×10⁸ m/sec.

The change of distance with respect to time is defined as speed. Speed is a scalar quantity. It is a time-based component. Its unit is m/sec.

The given data in the problem is

Distance of earth from stars = 4.3 light year

The given time = 3.7 year

One year converted into the second as;

\(\rm 1 \ year = 3.7 \times 365 \ days \ \times 24 \ hour \times 60 \ minute \times 60 \ sec \\\\ 1 year = 116 \times 10^6 \ sec\)

1 light-year into a kilometer as;

\(\rm 4.3 \ light year = 4.3 \times 9.46 \times 10^{15 metre} \\\\\)

At what constant velocity must a spacecraft travel from the earth if it is to reach the star in 3. 7 years,

The velocity of the spacecraft's travel from the earth will be;

\(\rm V = \frac{d}{t} \\\\ V= \frac{4.3 \times 9.46 \times 10^{15}}{3.7 \times 365 \times 24 \times 60 \times 60 } \\\\\ V= 3.49 \times 10^8 \ m/sec\)

Hence the constant velocity must the spacecraft travels from the earth will be  3.49×10⁸ m/sec.

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Answer:

B is the answer.

Explanation:

I am doing the same Assignment.

Answer:

Net displacement = 3.2 m

Explanation:

Given:

Mass of man = 80 kg

Mass of trolley = 320 kg

Speed = 1 m/s

Time = 4 sec

Computation:

Displacement by man = 1 m/s × 4 sec

Displacement by man = 4 m

Net ext force (trolley) = com at rest

So,

320 × X = 80(4 - X)

32X = 32 - 8X

40X = 32

X = 0.8 m

Net displacement = 4 m - 0.8 m

Net displacement = 3.2 m

Answer:

3) 3.2 m

Explanation:

The computation of the displacement relative to the ground after 4 seconds is shown below:

Let us assume the following

Starting x coordinate is at the origin

As it does not involve any external force so x coordinated would remain unchanged

Now the separation between the man and the trolley is

\(= 4 \times 1\)

= 4 m

And, we assume the displacement of man be x

So, for trolley it would be (4 -x)

Now we develop the equation which is

\(80 \times x = 320 \times (4 - x)\)

x = 16 - 4x

Therefore x = 3.2 m

Answer:

the lion will miss the zebra by 3 meters

Explanation

The zebra has gone 23.75m after 5 seconds

and the lion can only go 20 m/s

The lion can not catch zebra.

A diagram is attached below which describe situation of question.

The speed of Zebra is,

      \(v=u+at=0+4t=4t\)

Where u is initial speed of zebra.

The speed of lion is 20m/s.

The lead in speed by lion for every second is \((20-4t)\).

             \((20-4t)*t=60\\\\20t-4t^{2}=60\\ \\t^{2}-5t+15=0\\ \\t=\frac{5\pm\sqrt{(-35)} }{2}\)

Here time is imaginary.

Therefore, The lion can not catch zebra.

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Answer:

23.4 kg m/s

Explanation:

p = mv = 0.013kg × 1800m/s = 23.4 Kg.m/s

The statement, "P-waves travel through both solid and liquid rock, but s-waves cannot travel through liquid." is: True.

P-waves, also known as primary waves, can travel through both solid and liquid rock. These waves move by compressing and expanding the material they pass through, similar to sound waves.

S-waves, also known as secondary waves, on the other hand, can only travel through solid rock.

These waves move by shearing the material they pass through, meaning that the particles move perpendicular to the direction of the wave. Since liquids cannot resist this type of movement, S-waves cannot travel through them.

This distinction between the behavior of P-waves and S-waves is an important tool for seismologists, who use seismic waves to study the interior of the Earth.

By analyzing how waves travel through different materials, scientists can learn about the composition and structure of the Earth's layers.

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Answer:

The correct answer is "625,000 J".

Explanation:

The given values are:

Mass,

m = 2,000 kg

Speed,

v = 25 m/sec

As we know,

⇒  \(Kinetic \ energy=\frac{1}{2} (mass \times speed^2)\)

Or,

⇒  \(K.E=\frac{1}{2}(mv^2)\)

On substituting the values, we get

⇒          \(=\frac{1}{2}(2,000\times 25^2)\)

⇒          \(=1000\times 625\)

⇒          \(=625,000 \ J\)              

The statement that everything with mass is attracted to everything else with mass is the best definition of gravity.

In the field of physics, gravity is a basic interaction that causes all objects with mass or energy to attract one another. This force is present everywhere in the universe, and is the reason why all the planets in the solar system orbit around the sun.

From the group of answer choices, "Everything with mass is attracted to everything else with mass" is correct, since it describes the natural phenomenon by which all objects in the universe are attracted to one another.

The statement "What goes up must come down" is a simple observation of gravity's effects on objects on Earth, but it does not provide a complete definition of the force itself.

"Only small things are attracted to larger things" and "Only larger things are attracted to smaller things" are incorrect, as gravity acts on all objects with mass, regardless of their size.

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Answer:

When thermal energy is added to a substance at its melting or boiling point, the temperature of the substance remains constant as the added energy is used to break intermolecular bonds and cause a phase change from solid to liquid or from liquid to gas. In contrast, adding thermal energy at any temperature other than the melting or boiling point will cause the temperature of the substance to increase, as the added energy increases the kinetic energy of the particles, causing them to move faster and collide more frequently. At other temperatures, the intermolecular forces between the particles are not strong enough to cause a phase change until the substance reaches its melting or boiling point.

Answer:

Polonium(Po)

Explanation:

Answer:

B. polonium (Po)

Explanation:

i took the test

Answer:

It conserves both energy and momentum in the collision at the same time. By design, when the balls collide the strings that hold them up are vertical (assuming balls are only swung from one side).

Explanation:

Hope This Helps!!

Elasticity is of significant importance in the everyday lives of businesses and consumers as it helps them understand and respond to changes in prices and demand for goods or services. By considering elasticity, businesses can make informed decisions regarding pricing strategies, production levels, and resource allocation. Consumers, on the other hand, can assess the impact of price changes on their purchasing decisions and adjust their consumption patterns accordingly.

Elasticity, specifically price elasticity of demand, measures the responsiveness of consumer demand to changes in price. It indicates the percentage change in quantity demanded resulting from a one percent change in price. Understanding price elasticity allows businesses to determine how sensitive consumers are to changes in price and adjust their pricing strategies accordingly.

For example, let's consider the market for gasoline. Gasoline is a highly price-sensitive good, meaning that changes in its price have a significant impact on consumer demand. If the price of gasoline increases, consumers may reduce their consumption and seek alternatives such as carpooling or using public transportation. In this scenario, businesses need to consider the price elasticity of gasoline to predict and respond to changes in consumer behavior. They might lower prices to stimulate demand or introduce more fuel-efficient options to cater to price-conscious consumers.

In conclusion, elasticity matters because it provides valuable insights into the dynamics of supply and demand, enabling businesses and consumers to make informed decisions in response to price changes. By understanding elasticity, businesses can adapt their strategies to maintain competitiveness, while consumers can optimize their purchasing choices based on price sensitivity.

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Answer:

The force applied to a spring equals the product of the spring constant and the displacement.

Explanation:

From Hooke's law, the force required to extend or compress a spring by a distance is proportional to the distance. This means extension is proportional to force.

Mathematically it is stated as;

F= -k*x  where k is the spring constant and x is the displacement of the spring after adjustment.

Hooke's law is an example of elasticity property of a material which is the ability of the object to return to a normal shape after experiencing a distortion also called "restoring force"

Answer:

Option A

Explanation:

The correct answer is d) The anode is the cobalt electrode and the cell potential is +0.39 V. In a standard lead-cobalt cell, the anode is the cobalt electrode and the cell potential is +0.39 V.

This is because the cobalt electrode has a higher reduction potential than the lead electrode, meaning that electrons will flow from the cobalt to the lead electrode. The cell potential is the difference in the reduction potentials of the two electrodes, and since the cobalt electrode has a higher reduction potential, the cell potential is positive. The cell potential is measured in volts, and in this case it is +0.39 V.

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The pressure drop over a certain length of horizontal pipe is assumed to be a function of the velocity is true because of the relationship between fluid flow and pressure, which is described by the Bernoulli's principle.

The pressure drop over a certain length of horizontal pipe is typically related to the flow rate through the pipe, which is in turn related to the velocity of the fluid. This relationship is described by the Darcy-Weisbach equation,

ΔP = f (L/D) (ρV^2/2)

Where ΔP is the pressure drop, L is the length of the pipe, D is the diameter of the pipe, ρ is the density of the fluid, V is the average velocity of the fluid, and f is the friction factor, which depends on the roughness of the pipe surface and the Reynolds number of the flow.

This equation shows that the pressure drop is proportional to the square of the velocity of the fluid, which means that as the velocity increases, the pressure drop will also increase. Therefore, the pressure drop over a certain length of horizontal pipe can be related to the velocity of the fluid flowing through it.

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Answer:

The answer is B the products of photosynthesis are the reactants of cellular respiration

Answer:

non of the choice are correct

Explanation:

because waves look like waves only

The catch in this one is:  We don't know how much force the student used to push the bike.  

It wasn't necessarily the 100N.  That's just the weight of the bike. But you know that you can push a car, a wagon, or a bicycle hard, you can push it not so hard, you can give it a little push, you can give it a big push, you can push it strong, you can push it weak, you can push it medium.  The harder you push, the more it'll accelerate, but it's completely up to you how hard you want to push.  That's what's so great about wheels !  That's why they were such a great invention ! This is where I made my biggest mistake. This guy came into my store one day and said he's got this great invention, it's definitely going to take off, it'll be a winner for sure, he called it a "wheel".  I looked at it, I turned it over and I looked on all sides. I thought it was too simple.  I didn't know then it was elegant. I threw him out.  I was so dumb.  I could have invested money in that guy, today I would have probably more than a hundred dollars.

Anyway, can we figure out how much force the student used to push with ?  Stay tuned:

-- The bike covered 15 meters in 5 seconds.  Its average speed during the whole push was (15m/5s) = 3 meters/sec.

-- If the bike started out with no speed, and its average speed was 3 m/s, then it must have been moving at 6 m/s at the end of the push.

-- If its speed increased from zero to 6 m/s in 5 seconds, then its acceleration was (6m/s / 5 sec) = 1.2 m/s²

-- The bike's weight is 100N.  

(mass) x (gravity) = 100N

Bikemass = (100N) / (9.8 m/s²)

Bikemass = 10.2 kilograms

-- F = m A

Force = (mass) x (acceleration)

Force = (10.2 kg) x (1.2 m/s²)

Force = 12.24 N

-- Work = (force) x (distance)

Work = (12.24 N) x (15 m)

Work = 183.67 Joules

-- Power = (work done) / (time to do the work)

Power = (183.67 joules) / (5 seconds)

Power = 36.73 watts

False. The terminator of a gene is located downstream of the coding region.The terminator of a gene is a DNA sequence that signals the end of transcription, or the process by which genetic information is converted from DNA to RNA.

It is located downstream of the coding region, which is the part of the gene that contains the instructions for making a particular protein. The terminator helps to regulate the amount of mRNA that is produced, as well as to prevent the production of unwanted transcripts. The precise location and sequence of the terminator vary among different genes, but its role in regulating transcription is an important aspect of gene expression.

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After watching the Ted Talk, there were still a few questions that I had about supermassive black holes. Firstly, I wanted to know more about the event horizon and what it exactly entails. Although the speaker briefly touched upon this subject, I would have appreciated a more in-depth explanation. Additionally, I would have liked to know more about the role of supermassive black holes in the universe.

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Consider the following system, where F = 120 N, m = 1 kg, and M = 5 kg. Force exerted by the lighter block on the heavier block is F_2=20N

F = 120N

m = 1kg

M = 5kg

Generally, the equation for acceleration is mathematically given as

\(a=\frac{F}{m+M} \\\\a=\frac{120}{1+5} \\\)

a=20m/s^2

Let's formulate the heavier block's equation of motion.

F_1=F-F_2

Ma=F-F_2

It is estimated that the lighter block will exert the following force on the heavier block:

\(&F_2=\mathrm{F}-\mathrm{Ma} \\&F_2=120-(5 *20) \\\)

F_2=20N

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It is not possible to provide a qualitative comparison between objects a and b without knowing the specific quantities being compared.

To make a qualitative comparison, we need to know the specific attributes or characteristics being compared. Without this information, we cannot determine which object has a greater value. For example, if the quantities being compared are size, weight, or temperature, we would need the specific values for a and b to make a comparison.

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Answer:

a) Time = 2.67 s

b) Height = 35.0 m

Explanation:

a) The time of flight can be found using the following equation:

\( x_{f} = x_{0} + v_{0_{x}}t + \frac{1}{2}at^{2} \)   (1)

Where:

\( x_{f}\): is the final position in the horizontal direction = 80 m

\( x_{0}\): is the initial position in the horizontal direction = 0

\(v_{0_{x}}\): is the initial velocity in the horizontal direction = 30 m/s

a: is the acceleration in the horizontal direction = 0 (the stone is only accelerated by gravity)

t: is the time =?  

By entering the above values into equation (1) and solving for "t", we can find the time of flight of the stone:  

\( t = \frac{x_{f}}{v_{0}} = \frac{80 m}{30 m/s} = 2.67 s \)

b) The height of the hill is given by:

\( y_{f} = y_{0} + v_{0_{y}}t - \frac{1}{2}gt^{2} \)

Where:

\( y_{f}\): is the final position in the vertical direction = 0

\( y_{0}\): is the initial position in the vertical direction =?

\(v_{0_{y}}\): is the initial velocity in the vertical direction =0 (the stone is thrown horizontally)            

g: is the acceleration due to gravity = 9.81 m/s²

Hence, the height of the hill is:

\( y_{0} = \frac{1}{2}gt^{2} = \frac{1}{2}9.81 m/s^{2}*(2.67 s)^{2} = 35.0 m \)  

I hope it helps you!

Answer:

What is the difference between a prominence and a solar flare? A prominence is a loop of cool incandescent gas that extends above the photosphere. A solar flare is an explosive release of energy that comes from the sun and causes magnetic ditrubances.

Explanation:

Explanation:

0.10kg

0.5kg×0.2kg=

0.10

The time between retrogrades as viewed from Earth is longer than the orbital period of the planet.

The time it takes for a planet to complete one orbit around the Sun is its orbital period. In this case, the planet takes 0.8 years to complete one orbit. However, the time between retrogrades, which is the period between two consecutive retrograde motions of the planet as viewed from Earth, is longer than the orbital period.

When observing a planet from Earth, retrograde motion occurs when the planet appears to move backward in its orbit relative to the fixed stars. Retrogrades happen as a result of the difference in orbital speeds and the relative positions of Earth and the planet.

Due to these factors, the time it takes for the planet to return to the same apparent position as seen from Earth, including the retrograde motion, is longer than its orbital period.

The specific time between retrogrades can vary depending on the relative positions of Earth, the planet, and the Sun. The retrograde periods for different planets can range from a few weeks to several months, but it is always longer than the planet's orbital period.

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