A solenoid is configured to produce a magnetic field of 0.027T at its center. it has radius 1.4 cm and length 40cm and the wire can carry a maximum length of 12.0A. What is the total length required​

Answer:

Damp Proofing:

Explanation:

The presence of damp proofing is very necessary to maintain the health of a structure. DPC plays an important role in all types of buildings and it should be necessary to know about the importance, requirements, and properties of DPC. In many of the buildings all over the world, the rising damp may be due to a damaged damp-proof course, or sometimes, there may be not any damp proof course in a building.

The claim of the student is True, he can produce linear momentum in carrom with the help of b.

To explain the principle of linear momentum we can say that:-

According to the principle of conservation of momentum, if two things collide, the total momentum before and after the impact will be the same if no external force occurs on the colliding items.

Linear momentum conservation When the net external force is zero, the momentum of the system remains constant, as expressed mathematically by the expression.

Initial momentum = final momentum

Formula of Linear momentum is:-

Linear momentum = mass × linear velocity

P = M × V

The law of momentum conservation is based on Newton's third rule of motion, which states every force has a corresponding and opposing reciprocating force.

So we understand that Principle of Linear momentum. The initial momentum is equal to final momentum after collision hence, the carrom striker follows the concept of linear momentum.

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Answer:

it is easier to kick a stone than to drag a stone.

Explanation:

the science behind the question is fairly simple.

when you kick and object for say a (rock) you have inertia which is made from you clocking your leg back and swinging it full force forward. when you kick with inertia, you will have a much further travel distance of the object rather than dragging it which is almost set at a certain rate of how fast you are moving (m) and how much inertia you are using by pulling (p)

so m+p=i for inertia. hope this  helped

Combustion is when you use oxygen to convert fuel to heat and light energy. Option B is correct.

Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives heat.

The fuel can be a solid, liquid, or gas.

For example, charcoal is combined with oxygen.

Combustion is commonly called burning, and the substance that burns is usually referred as fuel.

For combustion to occur few things must be present:

fuel to be burned.

A source of oxygen

A source of heat.

Hence, Combustion is when you use oxygen to convert fuel to heat and light energy. Option B is correct.

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Answer:

B

Explanation:

Remember:

F = m * a

 =  10 * 2  = 20 N

Answer:

0.372779 cubic meters

Explanation:

Answer:

.3104 m^3

Explanation:

1 gal (US) = .00378541178 m^3

Answer:

D

Explanation:

Anaerobic Respiration only

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The potential energy of the bowling ball due to its position above the ground is 137.2 Joules. Therefore, the correct answer is 137 J The correct option is (b).

Given:

mass (m) = 7.00 kg

gravitational acceleration (g) = 9.80 m/s²

height (h) = 2.00 m

The potential energy of the bowling ball due to its position above the ground, we can use the formula for gravitational potential energy:

Potential Energy (PE) = mass × gravitational acceleration × height

The potential energy:

PE = 7.00  × 9.80 × 2.00 m

PE = 137.2 Joules

So, the potential energy of the bowling ball due to its position above the ground is 137.2 Joules. Therefore, the correct answer is 137 J (b).

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The magnitude of the electric field between the two electrodes in ionization type detectors is an electric field can be given in volts per meter.

The magnitude of the electric field varies with distance, d, from the charge based on the charge of the respective particle. Therefore, the electric field for a single point charge can be easily calculated from these measured values.

In the International System of Units, the electric field strength is measured in volts per meter (V/m).

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The car’s acceleration in g’s is equal to 0.67 m/s² and the centripetal force acting on is equal to 4033.47 Newton.

Since the car’s acceleration is given as 6.61 m/s², we would simply divide it by the acceleration due to gravity (9.8 m/s²) to calculate the car’s acceleration in g’s as follows:

Acceleration, g = 6.61/9.8

Acceleration, g = 0.67 m/s².

Mathematically, the centripetal force acting on this car can be calculated by using this formula:

Fc = mv²/r

Fc = (610 × 54²)/441

Fc = 1778760/441

Fc = 4033.47 Newton.

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Object spins around its own axis, while the object moves around another object.

Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space.

The continuous rotation of the Earth about its axis gives rise to the revolution of earth around the sun.

Thus, object spins around its own axis, while the object moves around another object.

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answer: rotating, revolving

According to Puddicombe, the result of  not taking any time out to simply look after our brains is that:

In his popular talk, Puddicombe explained that we have been caught up with the internet and other activities so much so that we do not have time to look out for our brains.

For this reason, we stress our brains and become distant from the most important things in life.

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Answer:

a

Explanation:

Polymers are large molecules which form long chains

Answer: A. Polymers are substances that have relatively large molecules.

Explanation:

Select the correct answer.

Which statement about polymers is true?

A. Polymers are substances that have relatively large molecules.

B. Oil and gas are the starting materials for making all polymers.

C. Fabrics such as cotton and silk are synthetic polymers.

D. All polymers are obtained from living organisms.

Answer:

π/10 rads

Explanation:

It takes an hour (60 minutes) for the minute's hand to turn a full circle or achieve an angular rotation of

2πl rad.

Now, number of periods of 3 minutes in an hour is;

Number of periods = 60/3 = 20 periods

Thus, 3 minutes rotation accounts for 1/20 of 2π the rotation of the minute's hand in an hour.

Thus;

Angular displacement = (1/20) * 2π = π/10 rads

The statement 'all energy in the universe is a result of mass being converted into energy' correctly describes mass-energy equivalence.

The expression mass-energy equivalence refers to the proportion of matter that can be converted into energy in the universe.

This mass-energy equivalence is an outcome of process of converting mass into energy.

In conclusion, the statement 'all energy in the universe is a result of mass being converted into energy' correctly describes mass-energy equivalence.

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Answer:

C

Explanation:

The water pressure is greatest at point B which has a larger diameter in this scenario.

This is defined as the force per unit area of a substance with its unit being Pascal.

The larger diameter will have more force acting on the sides which translates to a greater pressure.

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The apparent magnitude of a star refers to its brightness as seen from your eyes and absolute magnitude being the actual brightness of a star.

Magnitude can be defined as a unitless measure which is used to show the brightness of an object in comparison with the brightness of another object.

Basically, there are two types of magnitude and these include the following:

In conclusion, the apparent magnitude of a star refers to its brightness as seen from your eyes and absolute magnitude being the actual brightness of a star.

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I'm pretty sure it's apparent; absolute

Answer:

Yes

Explanation:

Average velocity is the ratio of total displacement and time taken for that displacement:

[tex]average \space\ velocity = \frac{displacement}{time}[/tex]

This means if displacement is zero, then average velocity will also be zero.

Displacement is zero when an object moves some distance in one direction, and then moves the same distance but in the opposite direction.

∴ As it is possible for displacement to be zero, it is also possible for average velocity to be zero.

The ultraviolet electromagnetic wave would be most useful for this task.

infrared microwave and radio waves will not be effective in removing the contamination and bacteria.

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Answer: Ultraviolet

Explanation: got it right on edge

Gravitational potential energy has changed from the beginning to the chain just sliding away from the table willl be MgL/24.

The energy that an item has due to its location in a gravitational field is known as gravitational potential energy.

Length of hanging part, L/4

The gravitational potential energy is;

Work = Gravitational potential energy

Work done =force×displacement

[tex]\rm W = \frac{Mg}{3} \times \frac{L}{8} \\\\ W = \frac{MgL}{24}[/tex]

Hence, gravitational potential energy has changed from the beginning to the chain just sliding away from the table willl be MgL/24.

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Answer:

Because of the Cohesion

Answer:

8.35 × [tex]10^{-3}[/tex] kg

Explanation:

Remember the formula for heat:

[tex]Q=mc\Delta T[/tex]

You just need to solve for m, doing so you're left with:

[tex]m=\dfrac{Q}{c\Delta T}[/tex]

Replace the variables with numbers and that's it.

[tex]x_{0} = v \sqrt{\frac{m}{2k}\\}[/tex] is the velocity of the object.

It states that energy can neither be created nor destroyed only converted from one form of energy to another.

According to law of conservation of energy:

T.E = Constant.

Also , P.E. = [tex]\frac{1}{2} kx^{2}[/tex] , K.E. = [tex]\frac{1}{2} mv^{2}[/tex]

T.E = P.E + K.E = [tex]\frac{1}{2} mv^{2}[/tex]

According to the question ,

2P.E. = [tex]\frac{1}{2} mv^{2}[/tex]

P.E. = [tex]\frac{mv^{2} }{4} = \frac{1}{2} k x_{0} ^{2}[/tex]

[tex]x_{0} ^2= v^{2} \frac{m}{2k}\\[/tex]

[tex]x_{0} = v \sqrt{\frac{m}{2k}\\}[/tex]

Therefore, the velocity of the object when the spring returns to the equilibrium position is best represented by [tex]x_{0} = v \sqrt{\frac{m}{2k}\\}[/tex]

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Answer:

I'm not a scholar of hydroelectric power in Nepal, so consider my answers carefully, below.

Explanation:

High Potential:  Hydroelectric power comes from the potential energy stored in a mass that is above Earth's surface.  As the word "hydro" implies, the mass in this case is water.  Water from snow and glacier melt, and from normal precipitation (rain) in mountainous regions eventually cascades down the mountains in fast-flowing rivers or waterfalls.  Often, there are lakes or man-made reservoirs to collect and store the water before it flows down.  Mt. Everest is 8848 meters tall (about 29,000 feet).    If a lake forms at just 2,000 meters, one can calculate the amount of energy in each kilogram of water stored in the lake that represents the potential energy available at that altitude.  1 kg of water at 2,000 meters has potential energy, PE, according to the equation:  PE = mgh, where m is the mass in kg, g is Earth's acceleration due to gravity (9.8 m/sec^2), and h is height, in meters.  

PE = mGH

PE = (1 kg)*(9.8 m/sec^2)*(2,000 meters) = 19,000 kg*m/sec^2

1 kg*m/sec^2 is the SI unit for 1 Joule, a measure of energy.

This potential energy can be converted into electrical energy by releasing the water so that it can flow down to a water-powered turbine that spins magnets and coils of wire that produce electricity.  The 19,000 Joules of water potential energy can be converted to electrical power, less any inefficiency in the system, such as friction.

Nepal has the natural advantage in that it has many high mountain ranges with water flows that can be used for generating electrical power.  The result is low operating costs (the fuel is the flowing water) and no greenhouse gas emissions

The difficulty in developing hydroelectric power in Nepal is due to the same factor that gives it an advantage:  it is difficult constructing large hydroelectric plants in such rough terrain, and the power lines that are needed to transport the power to its destination are expensive and difficult to maintain and repair.

Closed loop, conductor medium and presence of current in the wire are the conditions must be met so that a current flows.

The loop from where the current passes must be closed. There must be some current in the circuit in order to lit the bulb. The medium through which current flows should be a conductor.

So we can conclude that closed loop, conductor medium and presence of current in the wire are the conditions must be met so that a current flows.

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Answer:

Answer 740 H z, 1110 H z, 1480 H z

Explanation:

The F sharp note (370 Hz) makes the next three harmonics with frequencies of 740 Hz, 1110 Hz, and 1480 Hz, respectively.

It is necessary to have an understanding of the relationship between harmonics and the fundamental frequency in order to calculate the frequencies of the following three harmonics produced by the note F sharp, which has a pitch of 370 Hz.

The fundamental frequency, denoted by f1, is the first harmonic and corresponds to the frequency of the note (F sharp in this example) when it was initially played. Its pitch is 370 hertz.

The fundamental frequency (f1) is multiplied by two to get the second harmonic frequency (f₂), which is written as f₂ = 2 × f1.

The frequency of the third harmonic (f₃) is equal to three times the frequency of the fundamental tone, or f₃ = 3 × f₁.

The frequency of the fourth harmonic, denoted by f₄, is equal to four times the frequency of the fundamental tone. f₄ = 4 × f₁

If we know that the fundamental frequency, or f₁, is 370 hertz, then we can figure out the frequencies of the following three harmonics, which are as follows:

f₂ = 2 × 370 Hz, which equals 740 Hz

f₃ = 3 times 370 Hz, which equals 1110 Hz; f₄ = 4 times 370 Hz, which equals 1480 Hz

Following the frequency of the F sharp note (370 Hz), the next three harmonics produced have frequencies of 740 Hz, 1110 Hz, and 1480 Hz respectively.

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The Sun is 400 times larger than the Moon, yet since it is 400 times further away from Earth than the Moon, they appear to be the same size in the Earth's sky.