Suppose the current in a conductor decreases exponentially with time according to the equation I(t) = I0e-t/τ, where I0 is the initial current (at t = 0), and τ is a constant having dimensions of time. Consider a fixed observation point within the conductor. (Use the following as necessary: I0 and τ)
(a) How much charge passes this point between t = 0 and t = τ? (If applicable, round any coefficients to 3 decimal places.)
Q(τ) =
(b) How much charge passes this point between t = 0 and t = 10τ? (If applicable, round any coefficients to 5 decimal places.)
Q(10τ) =
(c) How much charge passes this point between t = 0 and t = [infinity]? (If applicable, round any coefficients to 3 decimal places.)
Q([infinity]) =

Answer:

The answer is "Y → X → Z".

Explanation:

In this question, the chart is missing and the question is not complete that's why we search this question and only give its correct answer that's is defined above, and please find the complete question in the attached file.

The resistance of the hardened copper rod is approximately 0.677 ohms.

To compute the resistance of a hardened copper rod, we need to use the formula for resistance:

Resistance (R) = Resistivity (ρ) x Length (L) / Cross-sectional Area (A)

Convert length to meters:

The length of the rod is given as 2 meters, so no conversion is required.

Convert diameter to meters and calculate the cross-sectional area:

The diameter of the rod is given as 8 mm. To calculate the cross-sectional area, we need to convert the diameter to meters.

Diameter (d) = 8 mm = 8 x 10^(-3) meters (1 mm = 10^(-3) meters)

To calculate the cross-sectional area, we use the formula:

Area (A) = π x (diameter/2)^2

Plugging in the values:

A = π x (8 x 10^(-3) / 2)^2 = π x (4 x 10^(-3))^2 = π x 16 x 10^(-6) = 50.27 x 10^(-6) m^2

Determine the resistivity of copper:

The resistivity (ρ) of copper is a material property and is typically given in ohm-meters (Ωm). The resistivity of copper is approximately 1.7 x 10^(-8) Ωm.

Calculate the resistance:

Using the formula for resistance, we can substitute the values:

R = (1.7 x 10^(-8) Ωm) x (2 m) / (50.27 x 10^(-6) m^2)

Simplifying the expression:

R = 0.677 Ω

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We have that the see-saw will be balance if a weight of \(x=15kg\) is added to Nural's side of the see-saw

\(x=15kg\)

From the Question we are told that

Wan’s mass is \(M_w=45 kg\)

Nurul’s mass is \(M_n= 30 kg.\)

Generally

The Will be balance when the weight on both sides of the see-saw are equal

\(M_w=M_n+x\)

\(45=30+x\)

\(x=45-30\)

\(x=15kg\)

In conclusion

The see-saw will be balance if a weight of \(x=15kg\) is added to Nural's side of the see-saw

\(x=15kg\)

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ANSWER:

0.4081%

Explanation:

Difference=24.6-24.5=0.1

Relative error = 0.1/24.5*100=0.4081%

Relative error is equal to the = difference between both the values/The true value *100

Coherence is important in all forms of wave interference. Each type of interference requires different considerations when it comes to coherence.

Interference is a phenomenon in which two or more waves combine to form a resultant wave of greater, lower, or the same amplitude. It can occur in many forms including constructive interference, in which the amplitudes add together, and destructive interference, in which the amplitudes subtract from each other.

Coherence is important in all forms of wave interference. Each type of interference requires different considerations when it comes to coherence.

Interference:

Interference is the phenomenon where two waves interact with each other and the resultant wave is the sum of the individual waves. Coherence is important in interference because the two waves must be in phase with each other in order for the interference pattern to be created. If the two waves are not in phase, then the interference pattern will not be created. This can be seen in the figure below.

Diffraction:

Diffraction is the phenomenon where a wave passes through an opening or around an obstacle and the wave spreads out after passing through the opening or around the obstacle. Coherence is important in diffraction because the waves must be coherent in order for the diffraction pattern to be created. If the waves are not coherent, then the diffraction pattern will not be created. This can be seen in the figure below.

Refraction:

Refraction is the phenomenon where a wave changes direction when it passes from one medium to another. Coherence is important in refraction because the waves must be coherent in order for the refracted wave to be created. If the waves are not coherent, then the refracted wave will not be created. This can be seen in the figure below

Reflection:

Reflection is the phenomenon where a wave bounces off a surface. Coherence is important in reflection because the waves must be coherent in order for the reflected wave to be created. If the waves are not coherent, then the reflected wave will not be created. This can be seen in the figure below.

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Answer:

h = 35857 km

Explanation:

A geosynchronous orbit can be defined as circular orbit which lies on the Earth's equatorial plane and follows the direction of the Earth's rotation in a period that's equal to the Earth's rotational period and thereby appearing motionless, at a fixed position in the sky relative to the ground observers.

We are given;

Radius of earth(R) = 6.37 x 10^(6) m

Mass of earth (Me) = 5.97 x 10^(24) kg

Gravitational constant = 6.67 × 10^(-11) m³/kg.s²

The earth has a rotational period of 24 hours per day. This gives in seconds

T = 24 × 60 × 60

T = 86400 s

Let's make the height of the orbit from Earth's surface to be h

Also, let ω be the uniform angular velocity in rad/s with which the satellite rotates in the geosynchronous orbit

Now, equating the centripetal force with the gravitational force gives us;

mω²(R + h) = G•Me•m/(R + h)²

m will cancel out. Also ω can be written as 2π/T

Thus,we now have;

(R + h) = ∛(G•Me•T²/(4π²))

Plugging in the relevant values, we have;

(R + h) = ∛(6.67 × 10^(-11) × 5.97 x 10^(24) × 86400²/(4π²))

(R + h) = 42227 Km

Since R = 6.37 x 10^(6)m = 6370 km

Thus;. h = 42227 - 6370 = 35857 km

Answer:

144.7832 ft

Explanation:

heres the formula i found to solve

v = v₀ + gt

where:

v₀ is the initial velocity (measured in m/s or ft/s);

t stands for the fall time (measured in seconds); and

g is the free fall acceleration (expressed in m/s² or ft/s²).

Without the effect of air resistance, each object in free fall would keep accelerating by 9.80665 m/s (approximately equal to 32.17405 ft/s) every second. In reality, though, a falling object's velocity is constrained by a value called the terminal velocity.

im sorry i couldnt provide more information, but there was not much info provided in the question itself

The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

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According to the claim made, the electron moved across a potential difference of 2.84 * 10⁻² V.

Each spot in space has an electric field associated with it when there is charge current in any form. The value of E, often known as the electric field strength, electric field intensity, or just the electric field, expresses the direction and intensity of the electromagnetic field.

Given;

Velocity, v = 10 * 10⁴ m/s = 10⁵ m/s

Potential difference, V = ?

Mass of electron = 9.11 * 10⁻³¹ kg

Charge of electron, q = 1.60 * 10⁻¹⁹C

The KE of an electron is the amount of energy in an electric field.

Thus, qV = 1/2mv²

Therefore, V = mv²/2q

Putting Values,

V = 9.11 * 10⁻³¹ * 10⁵ * 10⁵/2 * 1.6 * 10⁻¹⁹

= 9.11 * 10⁻²¹/3.2 * 10⁻¹⁹

V = 2.84 * 10⁻²

Thus, Potential difference is 2.84 * 10⁻² V

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B. magnitude and direction.

When two forces of equal size are working in opposite directions—one in the east and one in the west—the results of the two pressures are not the same.Therefore, the magnitude and direction should be provided in order to accurately characterize a force.

We can define force as that of the push or pull on an item with a certain magnitude and direction as we know that what a push or a pull indeed has magnitude and direction (hence, it is vector quantity).

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Answer:

no

Explanation:

it just doesn't work that way, try to search the fire pyramid on G. O. O. G. L. E. and you'll see why

Answer:

Yep.

Explanation:

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. Gravity will pull the object down. So yes, gravity affects kinetic energy.

Answer:

Kinetic energy is energy an object has because of its motion. A ball held in the air, for example, has gravitational potential energy. If released, as the ball moves faster and faster toward the ground, the force of gravity will transfer the potential energy to kinetic energy.

Explanation:

Answer:

392 Newtons

Explanation:

In order to find the weight, you have to multiply the mass by the gravitation constant (9.8), which gives us 40.0 * 9.8 = 392 Newtons.

Answer:

✓ Ion

Explanation:

Which term BEST describes the form of beryllium shown? Protons=4 Neutrons=5 Electrons=2

✓ Ion

Answer:

B

Explanation:

same group

Explanation:

p=mv

p=10000×15

p=150,000 kgm/s

Answer:

5270 N

Explanation:

We have,

• Mass, m = 1054 kg

• Acceleration, a = 5 m/s²

We have to find Force Applied, F.

\(\longrightarrow\) F = ma

\(\longrightarrow\) F = 1054 × 5 N

\(\longrightarrow\) F = 5270 N (Answer)

Answer:

98.

Explanation:

divide

The change in the kinetic energy of the cart is equal to 34875 J.

The energy which is possessed by a moving body because of its motion is known as kinetic energy. Work should be done in order to bring the change in the kinetic energy of a moving object.

The kinetic energy of a moving object can be determined from the formula mentioned below:

K.E. = ½mv²     where ‘m’ and 'v' is the mass and velocity of the object.

Given, the mass of the carriage, m = 450 Kg

The speed of the carriage, u = 18 m/s

The initial kinetic energy of the cart = (1/2) × 450 × (18)²

(K.E.)₁ = 72900 J

The final speed of the cart, v = 13 m/s

The final kinetic energy of of the cart = (1/2) × 450 × (13)²

(K.E.)₂ = 38025 J

The change in the kinetic energy of the cart = (K.E.)₂ - (K.E.)₁

Change in the kinetic energy = 72900 - 38025 = 34875 J

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Answer:

63.8454kgm/s

Explanation:

According to Newton's second law;

Force = mass ×acceleration

Fore = m(v-u)/t

Force = mv-mu/t

MV is the final momentum

mu is the initial momentum = 38kgm/s

Force = 88.3N

Time = 0.338s

Substitute and get mv

88.3 = mv-38/0.338

88.3×0.338 = mv-38

29.8454 = mv-38

MV = 29.8454+34

mv = 63.8454kgm/s

Hence the final momentum is 63.8454kgm/s

Answer:

67.8

Explanation:

im an acellus student, and this is the answer that i got when doing the problem.

Answer:

Explanation:

freely falling object

Answer: Use the x/t = v formula!!! x is distance, t is time, and v is velocity. you just need to do 40 / 5 = 8 and 100 / 15 = 6.66

The ball will reach a height of 308 ft at approximately 2.7 seconds.

To find when the ball reaches a height of 308 ft, we need to solve the equation h(t) = 308 ft. The equation for the height of the ball as a function of time is given by h(t) = -16t^2 + 80t + 224.

Setting h(t) equal to 308 ft:

-16t^2 + 80t + 224 = 308

Rearranging the equation:

-16t^2 + 80t - 84 = 0

Dividing through by -4 to simplify the equation:

4t^2 - 20t + 21 = 0

We can solve this quadratic equation using factoring or the quadratic formula. Factoring is not possible, so we'll use the quadratic formula:

t = (-b ± √(b^2 - 4ac)) / (2a)

In our case, a = 4, b = -20, and c = 21.

Plugging in the values into the quadratic formula:

t = (-(-20) ± √((-20)^2 - 4(4)(21))) / (2(4))

t = (20 ± √(400 - 336)) / 8

t = (20 ± √64) / 8

t = (20 ± 8) / 8

There are two possible solutions:

t1 = (20 + 8) / 8 = 28 / 8 = 3.5

t2 = (20 - 8) / 8 = 12 / 8 = 1.5

However, we are interested in the time when the ball reaches a height of 308 ft, which is a positive value. Therefore, the ball will reach a height of 308 ft at approximately t ≈ 2.7 seconds.

The ball will reach a height of 308 ft at approximately 2.7 seconds.

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Answer:

D.) The positively charged alpha particles were deflected more often than expected, which indicated that the gold atoms' positive charges were not evenly distributed throughout each atom.Explanation:

The wavelength is 6.04 nm.

since

λ=hc/E

λ=6.626×10^ −34×3×10 ^8/(3.29×10−19)

λ=6.04nm

The distance between identical points (adjacent crests) in adjacent cycles of a waveform signal carried in space or down a wire is defined as the wavelength. This length is often defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).

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Answer:

Answer is letter B

Answer:  THE CORRECT ANSWER IS :  The partiles that make up material B are more closely packed together than the partiles that make up material A

Explanation:     I TOOK THE TEST    apex

The above nutrients are gluten free along with calcium, iron, and fiber may also be lower in a gluten-free diet if whole grains and fortified products are not included. Therefore, it is important to work with a registered dietitian to ensure that nutrient needs are being met while following a gluten-free diet.

Gluten-free diets are often prescribed to individuals who have celiac disease or non-celiac gluten sensitivity. While following a gluten-free diet can be beneficial for people with these conditions, it can also result in nutrient deficiencies if not carefully planned.

Here are some nutrients that may be low in a gluten-free diet:

Riboflavin (Vitamin B2): Riboflavin is essential for maintaining healthy skin, eyes, and nervous system function. Foods that are high in riboflavin include dairy products, eggs, meat, fish, and leafy green vegetables. Gluten-free sources of riboflavin include enriched gluten-free bread and cereal products, almonds, and mushrooms.

Vitamin B12: Vitamin B12 is necessary for the formation of red blood cells and nerve function. It is found primarily in animal-based foods, such as meat, poultry, fish, and dairy products. Gluten-free sources of vitamin B12 include fortified breakfast cereals, plant-based milk alternatives, and nutritional yeast.

Thiamin (Vitamin B1): Thiamin is necessary for proper energy metabolism and nerve function. It is found in whole grains, pork, and legumes. Gluten-free sources of thiamin include enriched gluten-free bread and cereal products, pork, fish, and beans.

Niacin (Vitamin B3): Niacin is essential for healthy skin, nerves, and digestive system function. It is found in meat, fish, poultry, whole grains, and legumes. Gluten-free sources of niacin include enriched gluten-free bread and cereal products, meat, fish, and legumes.

Biotin: Biotin is necessary for healthy hair, skin, and nails. It is found in egg yolks, organ meats, nuts, and whole grains. Gluten-free sources of biotin include egg yolks, almonds, sweet potatoes, and spinach.

Vitamin B6: Vitamin B6 is necessary for healthy brain function and immune system function. It is found in meat, fish, poultry, whole grains, and legumes. Gluten-free sources of vitamin B6 include enriched gluten-free bread and cereal products, meat, fish, and legumes.

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The speed of the sound increase with the increase in the temperature of the medium. Option D is correct.

Sound waves are longitudinal waves which means they require a medium to travel.

The speed of the wave is faster in the solid (denser) material because particles are close in the solid than that in the liquid and gas.

The speed of the sound increase with the increase in the temperature of the medium because the particles move faster at a higher temperature.

Therefore, the speed of the sound increase with the increase in the temperature of the medium.

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Answer:

is B ....................

Answer:

In today's world pollution is very high so alternative energy such as solar energy help us to make pollution free world. So it is necessary to use alternative energy.

The types of energy that move through the system are as follows: potential energy, kinetic energy, mechanical energy, and electrical energy.The water stored in the dams contains potential energy.

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