During the 5.2 min a 4.5 A current is set up in a wire, how many (a) coulombs and (b) electrons pass through any cross section of the wire's width

Answer:

See the answers below.

Explanation:

To solve this problem we must use the following equation of kinematics.

\(y=y_{o}+v_{o}*t+0.5*g*t^{2}\)

where:

y = final elevation [m]

yo = initial elevation = 0

vo = initial velocity = 19.6 [m/s]

t = time required [s]

g = gravity acceleration = 9.81 [m/s²]

Now we can replace the different times in the equation above.

For  t = 1 [s]

\(y=0+(19.6*1)-0.5*9.81*(1^{2} )\\y = 14.7 [m]\)

For  t = 2 [s]

\(y=0+(19.6*2)-0.5*9.81*(2^{2} )\\y = 19.58 [m]\)

For  t = 3 [s]

\(y=0+(19.6*3)-0.5*9.81*(3^{2} )\\y = 14.7 [m]\)

For  t = 4 [s]

\(y=0+(19.6*4)-0.5*9.81*(4^{2} )\\y = -0.08 [m]\)

We can see that the sign of gravitational acceleration is negative, since it points in the opposite direction to the motion of the launch.

Note when the time is equal to 4 seconds we see that the distance is 0, ie the tennis ball has reached its maximum height and begins to descend.

Answer:

10.1

Explanation:

10.1

Answer:

10.1

Explanation:

\(\frac{2*\pi *2.1}{1.3}\)

The temperature is 57 degrees Fahrenheit while C is 15 degrees.

Water has a freezing point of 32° and a boiling point of 212° on the Fahrenheit temperature scale. The difference between the two is divided into 180 equal parts.

Your body temperature is usually around 37 °C. When your body temperature is 37.8°C or greater, you typically have a fever. You might feel hot, cold, or shaky. By taking your temperature using a thermometer, you can determine whether you have a fever.

The conversion of a degree in Fahrenheit to a degree in Celsius is represented by the Fahrenheit to Celsius formula. Fahrenheit to Celsius conversion formula: °C = [(°F-32)×5]/9

Given:

C = 15 degree

We know that,

F = 1.8C+32

F = 1.8*15+ 32

F = 27 +32

F = 57 degrees Fahrenheit

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Answer:

The correct option is;

3 times of X

Explanation:

The algebraic properties of a vector are;

Multiplicative identity for real numbers 1

1P = P for each P

Scalar associative property = r(sP) = (rs)P

Scalar distributive property (r + s)P = rP + sP

Vector distributive property r(P + Q) = rP + rQ

Additive inverse of a vector such that a vector P has an inverse -P such that we have;

P + (-P) = 0

Vector associative property (P + Q) + R = P + (Q + R)

Vector commutative property P + Q = Q + P.

Explanation:

divide the distance by the time it takes to travel that same distance, then add your direction to it.

Or change in displacement divided by change in time.

At an atomic level, electrostatics is responsible for most of the physical phenomena that we encounter in our everyday life. Every object we see around us, such as chairs, buildings, and people, are made up of atoms, and every atom has electrons that are negatively charged, protons that are positively charged, and neutrons that have no charge.

Electrostatics is the study of electric charges at rest and of the forces and fields associated with these charges. Electrons are held in atoms by the attraction of the positive nucleus for the negative charge of the electrons. This attraction is known as electrostatic force. The protons in the nucleus are also held together by electrostatic forces, which are much stronger than those that bind electrons to the nucleus.
The forces between charged objects are governed by Coulomb's Law. This law states that the force between two charged objects is proportional to the product of their charges and inversely proportional to the square of the distance between them. If the charges have the same sign, the force is repulsive; if they have opposite signs, the force is attractive.
Electrostatic forces play an important role in many physical phenomena, such as the attraction of dust particles to a TV screen, and the Van de Graaff generator, which uses electrostatic forces to build up very high voltages.

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Exactly at noon, as determined by the WWV time signal, on successive days of a week the clocks according to their relative value as good timekeepers, best to worst.

Time signals are also used in many everyday applications, such as GPS navigation, where precise timing is essential for calculating positions accurately.  A time signal refers to any signal that provides information about the passage of time. Time signals are often used in experiments to measure the duration of events or to synchronize the timing of multiple processes.

One common type of time signal is a periodic signal, which repeats itself at regular intervals. This can be used to measure the period or frequency of a phenomenon, such as the oscillation of a pendulum or the vibration of a guitar string. Another type of time signal is a pulse signal, which provides a brief burst of energy at a specific time. This can be used to trigger the start or stop of a process or to measure the time delay between different events.

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Answer:

Analog and digital signals are the types of signals carrying information. The major difference between both signals is that the analog signals have continuous electrical signals, while digital signals have non-continuous electrical signals.

Explanation:

Analog Signals   were used in many systems to produce signals to carry information.  These signals are continuous in both values and time. The use of analog signals has been declined with the arrival of digital signals. In short, to understand the analog signals –  all signals that are natural or come naturally are analog signals.  Digital Signals , unlike analog signals, digital signals are not continuous, but signals are discrete in value and time. These signals are represented by binary numbers and consist of different voltage values.  Their differences are as follows:

Analog Signals                                      Digital Signals

Continuous signals                               Discrete signals

Represented by sine waves               Represented by square waves

The Human voice, natural sound, analog electronic devices are few examples   Computers, optical drives, and other electronic devices

A Continuous range of values            Discontinuous values

Records sound waves as they are     Converts into a binary waveform.

Only be used in analog devices.        Suited for digital electronics like computers, mobiles, and more.

I think a Digital signal is better.

Answer:

Explanation:

Airplane wings are shaped to make air move faster over the top of the wing. When air moves faster, the pressure of the air decreases. So the pressure on the top of the wing is less than the pressure on the bottom of the wing.

this is off the internet

hope this help:)

The main answer to the question is (a) true.  Capacitance is the capacity of a dielectric to hold or store an electric charge.

Capacitance is a measure of an object's capacity to store an electric charge.

Capacitance is determined by the characteristics of the object's dielectric, which is an insulating material that exists between two electrical conductors in the presence of an electrical field. The capacity of a dielectric to hold or store an electric charge is referred to as its capacitance.

A capacitor is a component that is used to store electrical energy. Capacitors store energy in an electrical field, and the amount of energy that they can store is determined by their capacitance.

A capacitor consists of two conducting plates separated by a dielectric material. When a voltage is applied across the plates, a charge builds up on them, and an electrical field is created between the plates.

The capacitance of a capacitor is determined by a number of factors, including the size of the plates, the distance between them, and the type of dielectric material that is used. The capacitance of a capacitor is measured in farads (F), which is the unit of capacitance. The higher the capacitance of a capacitor, the more electrical energy it can store.

In conclusion, capacitance is the capacity of a dielectric to hold or store an electric charge. This makes option (a) true.

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Answer:

Example

Write 81 900 000 000 000 in standard form: 81 900 000 000 000 = 8.19 × 1013

It’s 1013 because the decimal point has been moved 13 places to the left to get the number to be 8.19

Answer:

B

Explanation:

the lines WILL meet at a point after crossing focal point

The horizontal component of the velocity is equal to: D. 15 m/s.

Given the following data:

To determine the horizontal component of the velocity:

The horizontal component of the velocity represents the influence of velocity  in displacing an object or projectile in the horizontal direction.

Mathematically, the horizontal component of velocity is given by the formula:

\(V_x = Vcos(\theta)\)

Substituting the given parameters into the formula, we have;

\(\\\\V_x = 30cos(60)\\\\V_x = 30 \times 0.5\)

Horizontal component, Vx = 15 m/s

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The speed of the object just after it comes away from the stick at t = 2.74 ms is: 1.36 m/s.

The horizontal force on an object can be calculated using the formula given below:
F = ma
Where, m = mass of the object
a = acceleration of the object

Here, the given force is:
F = at - bt²
Where, a = 1500 N/(ms)
b = 20 N/(ms)²
t = 2.74 ms

We can substitute these values in the given equation to calculate the force:
F = at - bt²
F = 1500 × 2.74 - 20 × (2.74)²
F = 4110 - 155.68F = 3954.32 N

The final velocity of an object can be calculated using the formula given below:
v = u + at
Where, v = final velocity
u = initial velocity
a = acceleration
t = time taken

We know that the object is initially at rest. Therefore, the initial velocity of the object is zero.
u = 0a = F/m = 3954.32/1.67 = 2366.77 m/s²t = 2.74 ms

We can substitute these values in the above equation to calculate the final velocity:
v = u + atv = 0 + 2366.77 × 2.74 × 10⁻³v = 6.4768 m/s

The speed of the object just after it comes away from the stick at t = 2.74 ms is 1.36 m/s (as we are looking for the speed and not velocity, we need to take the magnitude of velocity).

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According to the given statement Mrs. Brown's electricity bill for the current month is $5000.00.

To calculate Mrs. Brown's electricity bill for the current month, we need to determine the total number of kilowatt-hours (kWh) she has consumed and apply the corresponding rates.

1. Calculate the electricity usage:

  Current meter reading - Previous meter reading
  20,300 kWh - 17,800 kWh = 2,500 kWh

2. Determine the cost for the first 2000 kWh:

  $1.00/kWh * 2000 kWh = $2000.00

3. Determine the cost for the remaining kWh:

  500 kWh * $3.50/kWh = $1750.00

4. Add the fuel adjustment charge:

  $0.50/kWh * 2500 kWh = $1250.00

5. Calculate the total bill:

  $2000.00 + $1750.00 + $1250.00 = $5000.00


To calculate the electricity bill, we first find the difference between the current and previous meter readings.

In this case, Mrs. Brown used 2,500 kWh.

For the first 2000 kWh, the cost is $1.00 per kWh, resulting in a charge of $2000.00.

For the remaining 500 kWh, the cost is $3.50 per kWh, totaling $1750.00.

Additionally, a fuel adjustment charge of $0.50 per kWh is added to the bill. This amounts to $1250.00.

Finally, we add up all the charges to get the total bill, which is $5000.00.

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The applications, either for diagnostic purposes or for therapeutic purposes, involve the use of X-rays----CT scan radiography ,external beam radiation therapy, fluoroscopy.

How is CT used for treatment planning?

CT planning enables more accurate localisation of both tumour and normal organs in addition to providing an accurate body contour and inhomogeneity corrections.

What is difference between CT scan and fluoroscopy?

Overall, fluoroscopy is a safe procedure, but potential risks include burns or radiation-induced injuries to the skin. On the other hand, CT scans are still snapshots of a “slice” of the body. They use X-rays to help your doctor view important organs

What is a fluoroscopic procedure?

During a fluoroscopy procedure, an X-ray beam is passed through the body. The image is transmitted to a monitor so the movement of a body part or of an instrument or contrast agent (“X-ray dye”) through the body can be seen in detail

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Answer: You pedaling the bike is transforming chemical energy, supplied by the breakdown of the food you eat, into mechanical energy to turn the pedals. The chemical energy is potential and the mechanical energy is kinetic.

Explanation: hope this helps

Answer: At the start of the ride, the cyclist initially has chemical energy stored in his/her body as a result of the cyclist’s food intakes. This chemical energy in the cyclist is then converted to kinetic energy on the bike pedal due to the cyclist applying a downward force upon the bike pedal.

Explanation:

The separation length of induced dipole is \(E_{net}\) =\(\frac{kq}{d^{2} }\) ( 1 + \(\frac{s}{8d}\) ) leftward.

What is dipole moment?

A charge separation results in dipole moments. Dipole moments are caused by changes in electronegativity and can appear in ionic bonds between two ions or covalent bonds between atoms. The dipole moment increases with increasing electronegativity disparity. Another element affecting the size of the dipole moment is the distance between the charge separations. A molecule's polarity can be determined by its dipole moment.

We have,

Electric field due to dipole = E₂

As negative charge is nearer then the electric field will be toward the dipole.

E₁ = \(\frac{kqs}{r^{3} }\) = \(\frac{kqs}{(2d)^{3} }\) = \(\frac{kqs}{8d^{3} }\)

Now, electric field due to single charge -q = E₂

E₂ = \(\frac{kq}{r^{2} }\) = \(\frac{kq}{d^{2} }\)

\(E_{net}\) = E₁ + E₂ = \(\frac{kq}{d^{2} }\) ( 1 + \(\frac{s}{8d}\))

So, \(E_{net}\) = \(\frac{kq}{d^{2} }\) (1 + \(\frac{s}{8d}\) ) leftward.

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Answer:

50m/s2

Explanation:

u=0m/s

a=10m/s

v=?

t=5s

v=u+at

=0+(10×5)

=0+50

=50m/s

Answer:

Energy cannot be created or destroyed.

Explanation:

its in the name, law of "conservation" of energy. energy can only change forms not be destroyed

Answer: Energy cannot be created or destroyed.

Explanation: The law of conservation of energy states that energy can neither be created nor be destroyed due to energy loss. It can only change its states from one energy state to another.

The efficiency is defined as the ratio of output work to the input work. The efficiency of the fan is not 100%. Because some of the energy is lost in the form of heat and sound. No machine is 100% efficient. There is always some loss of energy takes place.

I really hope this helps and sorry it's late.

a) The width of the first-order bright fringe for 660nm light is 12.3 mm

b)  The width of the first-order bright fringe for 470nm light is 8.85 mm.

c) The distance between the first-order bright fringe for each wavelength is 3.45 mm.

(a) To find the width of the first-order bright fringe for 660nm light, we can use the formula:

w = λL/d

where w is the width of the fringe, λ is the wavelength of the light, L is the distance between the slits and the screen, and d is the distance between the slits.

Substituting the values, we get:

w = (660 x 10^-9 m) x (5.10 m) / 0.270 x 10^-3 m

w = 1.23 x 10^-2 m or 12.3 mm

Therefore, the width of the first-order bright fringe for 660nm light is 12.3 mm.

(b) Similarly, to find the width of the first-order bright fringe for 470nm light, we can use the same formula:

w = λL/d

Substituting the values, we get:

w = (470 x 10^-9 m) x (5.10 m) / 0.270 x 10^-3 m

w = 8.85 x 10^-3 m or 8.85 mm

Therefore, 8.85 mm  is the width of the first-order bright fringe for 470nm light.

(c) The distance between the first-order bright fringe for each wavelength can be found by subtracting the position of the 470nm fringe from the position of the 660nm fringe:

Δx = w660 - w470

Δx = (1.23 x 10^-2 m) - (8.85 x 10^-3 m)

Δx = 3.45 x 10^-3 m or 3.45 mm

Therefore, the distance between the first-order bright fringe for each wavelength is 3.45 mm.

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The solution to the calculation, rounded to the proper number of significant figures, is approximately 1654 J.

To find the solution to the calculation, we need to follow the rules of significant figures and perform the arithmetic operations step by step.

Subtract the given masses: (165.43 g - 78.15 g) = 87.28 g.

Calculate the temperature difference: (297.6 K - 292.8 K) = 4.8 K.

Multiply the mass difference by the specific heat capacity and the temperature difference:

(87.28 g) × (4.184 Jg^(-1) K^(-1)) × (4.8 K) = 1653.71776 J.

Round the result to the proper number of significant figures based on the given values.

The given values have the following significant figures:

165.43 g has 5 significant figures.

78.15 g has 4 significant figures.

4.184 Jg^(-1) K^(-1) has 4 significant figures.

297.6 K has 4 significant figures.

292.8 K has 4 significant figures.

Since we are multiplying and dividing, the result should have the same number of significant figures as the value with the fewest significant figures, which is 4.

Round the result to 4 significant figures: 1653.71776 J ≈ 1654 J.

Therefore, the solution to the calculation, rounded to the proper number of significant figures, is approximately 1654 J.

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Follow my lead or ur answer is very wrong

Answer:

See below

Explanation:

There is the normal force of the book on the table.....the table exerts the same force ( upwards) on the book.

All of the forces result in a net zero force on the book so it does not move (there are no horizontal forces on the book)

Answer:

38

Explanation:

76 divided by 2 =38

Answer:

The maximum height above the ground the rocket reaches is 123.1 m.

Explanation:

Let's find the final velocity at a distance of 200 m:

\( v_{f}^{2} = v_{0}^{2} + 2ad \)

Where:

\(v_{f}\) is the final speed =?

v₀ is the initial speed =0

a is the acceleration = 1.25 m/s²

d is the distance = 200 m

\(v_{f} = \sqrt{2ad} = \sqrt{2*1.25 m/s{2}*200 m/s} = 22.4 m/s\)    

Now, when the engines of the rocket turn off and it is subject only to gravity, the height reached is:

\( v_{fy}^{2} = v_{0y}^{2} - 2gh \)

Where:

\(v_{f}\) = 0

\(h = -\frac{v_{fy}^{2} - v_{0y}^{2}*sin(\theta)}{2g} = \frac{(22.4*sin(35))^{2}}{2*9.81 m/s^{2}} = 8.4 m\)

Finally, the maximum height above the ground is:

\( h_{max} = h + H \)

Where H is the vertical component of the 200.0 meters.

\(h_{max} = h + H = 8.4 m + 200.0 m*sin(35) = 123.1 m\)

Therefore, the maximum height above the ground the rocket reaches is 123.1 m.

I hope it helps you!                                                          

Simply put different aspects of the electromagnetic spectrum reflect differently. Certain chemicals will absorb different frequencies of light while reflecting others.

Answer:

B. Digital Signal

Explanation:

I am not Wrong.