1. what condition is necessary for the flow of heat? what analogous condition is necessary for the flow of charge? temperature difference is a necessary condition for the flow of heat. similarly, a voltage difference is necessary for the flow of charge.

Answer:

A. tracert

Explanation:

Tracert is a computer diagnostic command which displays possible routes for delays in packets of Internet Protocol (IP). Tracert command will display results for route which is recorded round trip times of packet.

The Earth's temperature without an atmosphere, determined by substituting 342 W/m² for outgoing longwave radiation and rearranging the Stefan-Boltzmann equation, is approximately 255 K.

By substituting the given values into the Stefan-Boltzmann equation, we can solve for the Earth's temperature without an atmosphere. Assuming an emissivity of 1, the equation becomes 342 = (5.67 × 10^-8) × T^4. Solving for T yields a temperature of approximately 255 K.

Converting this temperature to degrees Celsius, we subtract 273.15 to obtain approximately -18.15 °C. Similarly, converting to degrees Fahrenheit using the conversion formula, we find approximately -0.67 °F.

This temperature of -18.15 °C (or -0.67 °F) represents the hypothetical temperature of the Earth without an atmosphere. Comparing it to the actual average temperature of the Earth, around 15 °C (or 59 °F), we can see that it is significantly colder. The presence of the atmosphere is crucial for trapping heat through various greenhouse gases, such as carbon dioxide and water vapor, which maintain a habitable temperature range on Earth. Without the atmosphere's greenhouse effect, the Earth's temperature would be much colder, emphasizing the vital role played by our atmosphere in sustaining life on the planet.

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Answer:

The trouble that the most recent experiment, Borexino, have to overcome was that

neutrinos hardly interact with matter and so radioactive decay of ant material inside the detector could look exactly like a neutrino interaction too

Answer:

yeah they right .

uhhhhh shsjsjsjwjwjwjwjwjw

Answer:

-4.75

Explanation:

its right just trust me

In order to find the magnitude of the electric field at the origin, you need to use the equation E = q/4πεr², where q is the charge, ε is the permittivity of space, and r is the distance from the origin.

To calculate the electric field, you must first determine the charge of the particle, then determine the distance to the origin, and finally, use the equation to calculate the magnitude of the electric field.

Once you have the magnitude of the electric field at the origin, you can then use it to explore the behavior of other electric fields in the area.

To calculate the magnitude, you must first determine the values of k, q, and r, then plug them into the equation and solve. The resulting answer will be the magnitude of the electric field at the origin.

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Answer:

33 miles

Explanation:

10 + 15 + 8 = 33

Answer:

Answer: Magnitude = [____]; unit = [____].

Explanation:

Answer:

Original fundamental frequency = 311.111 Hz (Approx)

Explanation:

Given:

Frequency (f) = 560 Hz

3rd harmonic

Used length = 60%

Find:

Original fundamental frequency.

Computation:

Fundamental frequency = Frequency (f) / 3rd harmonic

Fundamental frequency = 560 / 3

Original fundamental frequency = 560 / 3(60%)

Original fundamental frequency = 560 / 1.8

Original fundamental frequency = 311.111 Hz (Approx)

The answer for (iv) is;

E.M.F of the battery refers to the chemical energy in the battery that is being converted into electrical energy for the flow of electrons to carry current in a circuit.

Answer:

P = ρ g H       familiar expression for pressure due to column of liquid

P = 1000 kg/m^3 * 10 m/s^2 ^ 120 m = 1,200,000 kg / m/s^2

Can also be written P = 1.2E6 kg / (m/s^2)

Usually written as 1.2E6 N/m^2

Standard atmospheric pressure is written as

1.01E5 N/m^2

So the pressure due to the column of water would be about 12 X

that of a column of water as given

A body moves in a perfectly circular path at constant speed. There must be a force pulling toward the center of the circle. According to Newton's first law, there must a force present to keep the object moving in a circle rather than a straight line.

Newton's 1st law is to show the resultant force acting on an object with a composition equal to zero, so that an object that is initially at rest will always remain at rest. While an object initially moves in a straight line, it will forever continue to move in a straight line at a constant speed. So it can be concluded that in Newton's Law 1 the acceleration of an object is directly proportional to the force acting on the object and inversely proportional to the mass or weight of the object itself.

The properties of objects in Newton's 1st law tend to maintain their original state with the same inertia or degree of inertia. That is why Newton's 1st Law is also known as the Law of Inertia. The shape of the moment of inertia in Newton's 1st Law occurs in various forms, for example linear moments of inertia, mass moments of inertia, and polar or polar moments of inertia.

The magnitude of the stresses also differ according to the material used, such as bending stress and torsional stress, so the calculation can be based on the moment of inertia

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Answer: San diego

Because it is closer to the ocean

\( \underline{ \textrm{ \red{ \: Periodic Motion: \:} }}\)

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\( \underline{ \textrm{ \blue{ \:Oscillatory Motion: \: }}}\)

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hope it helps ⸙

The difference between periodic motion and oscillatory motion is that "​all oscillatory motion is periodic, but not all periodic motion is oscillatory."

Periodic motion and oscillatory motion are both types of repetitive motion, but there are subtle differences between the two.

The periodic motion refers to any motion that repeats itself after a fixed interval of time, called the period. The motion may not necessarily be back and forth or side to side; it can be any type of repetitive motion.

For example, a planet orbiting the sun exhibits periodic motion because it repeats its path around the sun after a fixed period of time.

Oscillatory motion, on the other hand, specifically refers to repetitive back-and-forth or to-and-fro motion around a fixed point or equilibrium position. This means that the motion has an amplitude (the maximum displacement from the equilibrium position) and a frequency (the number of oscillations per unit of time).

Examples of oscillatory motion include a pendulum swinging back and forth, a spring bouncing up and down, or a wave moving up and down in the water.

Therefore, all oscillatory motion is periodic, but not all periodic motion is oscillatory.

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Answer:

It is cause by radiation that's the answer

Explanation: the heat project sun rays towards the popcorn which causes it to pop

Answer:

the answer is c

Explanation:

Answer: 1,250 joules

Explanation: elastic potential energy is half of the spring constant multipied by extention squared so its 12.5 multiplied by 100 which is 1,250

When the two blocks touch each other, both blocks will have the same temperature and it will be closer to 0 degrees Celsius than 84 degrees Celsius.

option A is the correct answer.

The final temperature of the blocks or the equilibrium temperature of the blocks when they touch each other is determined by applying the principle of conservation of energy as follows;

Heat lost by the smaller block = Heat gained by the bigger block

m₁c(T₁ -T) = m₂c(T - T₂)

where;

m₁(T₁ -T) = m₂(T - T₂)

5 x (84 - T) = 50(T - 0)

420 - 5T = 50T

420 = 55T

T = 420/55

T = 7.64⁰C

Thus, we can conclude that both blocks will have the same temperature which will be closer to 0 degrees Celsius than 84 degrees Celsius.

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A force f of strength 20 N applied on an object  having mass  of 3 kg as it moves a distance of 4 m. If f is perpendicular to the 4 m displacement, the work it does is equal to Zero .

A displacement is a vector whose length is the shortest gap between a moving point P's initial and final positions.

An object's displacement is equal to its velocity times its acceleration times its time squared plus one-half (t2).

Given:

Force f of strength 20 n

object of mass 3 kg

distance of 4 m

f is perpendicular to the 4 m displacement

Hence if the Force f applied is perpendicular to the displacement the work done by  the force will become Zero.

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Concepts:

For resistors in series we know the following,

\(1. \ I_{tot.}=I_1=I_2=I_3=...\\2. V_{tot.}=V_1+V_2+V_3+... \\3. R_{eq.}=R_1+R_2+R_3+...\)

For parallel resistors we know the following,

\(1. \ V_{tot.}=V_1=V_2=V_3=...\\2. \ I_{tot.}=I_1+I_+I_3+...\\3. \frac{1}{R_{eq.}}=\frac{1}{R_1} + \frac{1}{R_2} +\frac{1}{R_3}+...\)

What is a resistor?

Resistors are used in electrical circuits. Resistors take energy and convert it into another form such as thermal energy which in turn can limit the amount of current through a wire.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#1:

We are given a circuit with series resistors.

Using the following equation to find an equivalent resistor.

\(\Rightarrow R_{eq.}=R_1+R_2+R_3+...\)

\(\Longrightarrow R_{eq.}=2+2 \Longrightarrow \boxed{R_{eq.}=4 \Omega}\)

#2:

We are given a circuit with parallel resistors.

Using the following equation to find an equivalent resistor.

\(\Rightarrow \ \frac{1} {R_{eq.}}=\frac{1}{R_1} + \frac{1}{R_2} +\frac{1}{R_3}+...\)

\(\Longrightarrow \ \frac{1} {R_{eq.}}=\frac{1}{2} + \frac{1}{2} \Longrightarrow \ \frac{1} {R_{eq.}}=1 \Longrightarrow (\ \frac{1} {R_{eq.}})^{-1}=(1)^{-1} \Longrightarrow \boxed {R_{eq.}=1 \ \Omega}\)

#3:

We are given a circuit with parallel resistors.

Using the following equation to find an equivalent resistor.

\(\Rightarrow \ \frac{1} {R_{eq.}}=\frac{1}{R_1} + \frac{1}{R_2} +\frac{1}{R_3}+...\)

\(\Longrightarrow \ \frac{1} {R_{eq.}}=\frac{1}{1} + \frac{1}{1} \Longrightarrow \ \frac{1} {R_{eq.}}=2 \Longrightarrow (\ \frac{1} {R_{eq.}})^{-1}=(2)^{-1} \Longrightarrow \boxed {R_{eq.}=\frac{1}{2} \ \Omega}\)

#4:

We are given a circuit with series resistors.

Using the following equation to find an equivalent resistor.

\(\Rightarrow R_{eq.}=R_1+R_2+R_3+...\)

\(\Longrightarrow R_{eq.}=1+1 \Longrightarrow \boxed{R_{eq.}=2\ \Omega}\)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Thus, the combination with smallest equivalent resistance is option #3.

The given paraboloid coordinate system (u, v, ϕ) with x = u.v cosϕ,

y = u.v sinϕ , z = 1/2 (u2 - v2) is orthogonal. The gradient is ∇f = (∂f/∂u) e_u + (∂f/∂v) e_v + (∂f/∂ϕ) e_ϕ ; divergent is ∇²f = ∇ · (∇f) ; curl is (∇ x) and laplacian is  (∇²).

We can prove that the paraboloid coordinate system (u, v, ϕ) is orthogonal, by computing the dot products of the basis vectors. The basis vectors in this coordinate system are given by:

e_u = (∂x/∂u, ∂y/∂u, ∂z/∂u) = (v cosϕ, v sinϕ, u)

e_v = (∂x/∂v, ∂y/∂v, ∂z/∂v) = (u cosϕ, u sinϕ, -v)

e_ϕ = (∂x/∂ϕ, ∂y/∂ϕ, ∂z/∂ϕ) = (-u.v sinϕ, u.v cosϕ, 0)

By Taking the dot products, we find that e_u · e_v = 0, e_v · e_ϕ = 0, and e_ϕ · e_u = 0. This proves that the basis vectors are mutually perpendicular, and therefore, the coordinate system is orthogonal.

Next, we can calculate the gradient (∇) in this coordinate system. The gradient of a scalar function f(u, v, ϕ) is given by:

∇f = (∂f/∂u) e_u + (∂f/∂v) e_v + (∂f/∂ϕ) e_ϕ

The divergence (∇ ·) and curl (∇ x) can be computed using the standard formulas in terms of the basis vectors. Finally, the Laplacian (∇²) can be obtained by taking the divergence of the gradient:

∇²f = ∇ · (∇f)

Thus, By evaluating these operations in the given coordinate system using the appropriate partial derivatives, we can determine the gradient, divergent, curl, and Laplacian for any scalar function in the (u, v, ϕ) coordinates.

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Explanation:

when the circuit is broken or when a switch is open.

Answer:c

A burned out bulb, dead battery, open switch, or discon- nected wire can open a circuit and stop the flow of current. conductor A material current can pass through easily. A good conductor has low resistance to the flow of electric charges. Metals, like aluminum, gold, and copper, are good conductors.

get what trying to tell u

Explanation:

Answer:

imma try nd help cuz i havent seen anybody answer so

1.sara

2.same for both

3.tom

Explanation:

The speed of a sound wave traveling in a medium can be calculated using the formula v = √(b/ρ), where v represents the speed, b represents the bulk modulus, and ρ represents the mass density of the medium.

Let's break down this formula step by step:

1. Bulk modulus (b): The bulk modulus is a measure of how resistant a material is to compression. It tells us how much the material can be compressed or expanded when subjected to an external force. It is denoted by the symbol b.

2. Mass density (ρ): Mass density is the measure of how much mass is present in a given volume of a substance. It is calculated by dividing the mass of an object by its volume. Mass density is denoted by the symbol ρ.

3. Speed of sound wave (v): The speed of a sound wave is the rate at which the wave travels through a medium. It depends on the properties of the medium, such as its bulk modulus and mass density.

To find the speed of a sound wave in a medium, we can use the formula v = √(b/ρ). This formula tells us that the speed of sound is inversely proportional to the square root of the mass density and directly proportional to the square root of the bulk modulus.

For example, let's say we have two materials: Material A and Material B. Material A has a higher bulk modulus and lower mass density compared to Material B. According to the formula, the speed of sound in Material A will be greater than the speed of sound in Material B because the bulk modulus is in the numerator and the mass density is in the denominator.

In conclusion, the speed of a sound wave traveling in a medium can be determined using the formula v = √(b/ρ), where v is the speed, b is the bulk modulus, and ρ is the mass density of the medium.

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At the mouth of a submarine canyon, you would expect to find a fan-shaped accumulation of sediment called a submarine fan. Submarine canyons are deep,

steep-sided valleys that cut into the seafloor and can extend for many kilometers. They are often formed by underwater erosion from currents, landslides, and other geological processes. At the mouth of the submarine canyon, where it opens up onto the continental shelf, sediment carried by the currents can accumulate and form a fan-shaped deposit. This sediment can come from a variety of sources, including the erosion of the canyon walls, rivers that empty into the ocean, and ocean currents that transport sediment from other areas.

Submarine fans can be quite large and can play an important role in the transport of sediment and nutrients in the deep ocean. They can also be important sites of oil and gas deposits, as well as deep-sea habitats for a variety of marine organisms.

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Answer:

hydrochlorine +12÷B to the power of 4 -× y reapeated zminus 2 to the power of 9

More mass is available closer to the star and less far away because the disk density decreases with distance from the star. The temperature also decreases with distance, which can cause ice to form, increasing the solid mass available for planet formation. Additionally, the strength of the radiation and the intensity of the stellar wind also decrease with distance, which can also affect the amount of mass available to build planets.

However, the mass available for planet formation also depends on the protoplanetary disk's age and composition and the planets' presence, which can affect the distribution of the disk's mass.

6) Star A gives off more red light because its peak is farther to the red end of the spectrum.

Spectrum is a term used to describe the complete range of frequencies of electromagnetic radiation, from the longest radio waves to the shortest gamma rays. It is also used to refer to the full range of visible light, from the lowest frequency red light to the highest frequency violet light. This range of frequencies is divided into smaller sections, such as infrared, ultraviolet, and radio waves.

7) Star B gives off more blue light because its peak is farther to the blue end of the spectrum.
8) Both students are correct. Star A gives off more blue light than red light and appears bluish, while Star B gives off more red light than blue light and appears reddish.
11) Star C must be cooler than Star A to account for the difference in energy output.
14) Star D has the greater surface temperature because its peak is higher and closer to the blue end of the spectrum.
15) Star D is larger because its peak is higher and its energy output is greater than Star A.

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Answer:

p = 0

Explanation:

Given that,

Mass of beetle, m = 750 kg

It was rest. It means its speed is equal to 0.

The momentum of an object is equal to the product of mass and velocity. So,

p = mv

p = 750 × 0

p = 0 kg-m/s

So, the momentum of the beetle is 0 kg-m/s.