The following table was made to compare the different seismic waves. What correction needs to be made?

A. Rayleigh waves have a rolling movement and Love waves have a horizontal movement that is perpendicular to the wave.
B. Rayleigh and Love waves are body waves, P-waves and S-waves are surface waves.

Using an electric kettle, 200 g of water at 100 is converted into steam at 100 in 300 seconds, so the specific latent heat of steam is 2250 j/g, and here the average of the electrical power used by the kettle is 1500 W.

The amount of heat required to convert 200 g of water at 100 °C to steam at 100 °C is explain below,

Q = m × L (m = mass of water; L = specific latent heat of steam)

Q = 200g × 2250 J/g = 450000 J

The time to convert the water into steam = 300 seconds, thus the average power used is:

P = Q/t = 450000 J/300 s = 1500 W

Hence, here the average of the electrical power used by the kettle with  200g of water is 1500 W.

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The speed that maximizes the range of the plane is, \(v = (\dfrac{0.25c}{ab}})^{\dfrac{-1}{2b+0.25}}\).

Let R be the range of the plane, P be the power required to keep the plane moving at a speed v, and F be the fuel flow rate proportional to P. The amount of fuel the plane has available is a function of time t and is given by,

F×t = C, where C is a constant determined by the initial amount of fuel.

Express R in terms of P using the relationship between fuel flow rate and power,

F = k×P

where k is a constant of proportionality.

Substituting this expression for t into the expression for R,

R = vt = vC/(k×P)

P = a×v^b + (c/v)^0.25

where a and b are positive constants, and c is another positive constant.

Substituting this expression into the expression for R, we get:

\(R = \dfrac{vC}{k(a\times v^b) + \dfrac{c}{v^{0.25}}}\)

To find the value of v that maximizes R, we can take the derivative of R with respect to v, set it equal to zero, and solve for v:

\(dR/dv = -Ck\dfrac{abv^{b-1} - \dfrac{0.25c}{v^{1.25}}}{k(a\times v^b + \dfrac{c}{v^{0.25}})^2}\\ = 0\\abv^{2b-1} = \dfrac{0.25\times c}{v^{1.25}}\)

Solving for v, we get:

\(v = (\dfrac{0.25c}{ab}})^{\dfrac{-1}{2b+0.25}}\)

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Answer:

The ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine is called mechanical advantage.

Do = 2f means that object distance is 2 x focal length.

2 x focal length = radius of curvature

When an object is placed at the radius of curvature, a real, inverted image is formed at the other radius of curvature. The sizes of the image and the object are the same. The sketch is shown below

The duration of a star's main sequence lifetime is primarily determined by its mass, which in turn determines its internal temperature and the rate at which it burns hydrogen fuel in its core through nuclear fusion. The more massive the star, the hotter and more luminous it is, which means it burns through its fuel at a much faster rate than less massive stars.

Star A is said to have a main sequence lifetime of 45,000 million years. This indicates that it is a low-mass star, since the lifetime of such stars is much longer than high-mass stars. Low-mass stars have a core temperature that is not high enough to burn their fuel as quickly as high-mass stars, so their main sequence lifetime is much longer.

Star B, with a main sequence lifetime of 70 million years, is likely a star that is slightly more massive than Star A, but not as massive as Star C. Stars of this mass are still considered low-mass stars, but they have a shorter main sequence lifetime than Star A due to their slightly higher mass.

Star C has the shortest main sequence lifetime of only 2 million years, indicating that it is a very high-mass star. These stars are extremely hot and luminous, which causes them to burn through their fuel very quickly, resulting in a very short main sequence lifetime. Stars like Star C eventually undergo a catastrophic explosion known as a supernova, which marks the end of their life.

The duration of a star's main sequence lifetime is primarily determined by its mass, which in turn determines its internal temperature and the rate at which it burns hydrogen fuel in its core through nuclear fusion. The more massive the star, the hotter and more luminous it is, which means it burns through its fuel at a much faster rate than less massive stars.

Star A is said to have a main sequence lifetime of 45,000 million years. This indicates that it is a low-mass star, since the lifetime of such stars is much longer than high-mass stars. Low-mass stars have a core temperature that is not high enough to burn their fuel as quickly as high-mass stars, so their main sequence lifetime is much longer.

Star B, with a main sequence lifetime of 70 million years, is likely a star that is slightly more massive than Star A, but not as massive as Star C. Stars of this mass are still considered low-mass stars, but they have a shorter main sequence lifetime than Star A due to their slightly higher mass.

Star C has the shortest main sequence lifetime of only 2 million years, indicating that it is a very high-mass star. These stars are extremely hot and luminous, which causes them to burn through their fuel very quickly, resulting in a very short main sequence lifetime. Stars like Star C eventually undergo a catastrophic explosion known as a supernova, which marks the end of their life.

In summary, the main sequence lifetime of a star is closely related to its mass. The more massive a star, the shorter its main sequence lifetime, while lower-mass stars have longer main sequence lifetimes. Based on the given information, Star C has the shortest main sequence lifetime of only 2 million years, making it the most massive of the three stars, while Star A is the least massive with a main sequence lifetime of 45,000 million years.

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Answer:

250 - 35e = 215e

150 - 35e = 115e

Explanation:

I did it mentally

Answer:

\(\boxed {\tt 108.695652 \ cm^3}\)

Explanation:

Volume can be found by dividing the mass by the density.

\(v=\frac{m}{d}\)

The mass is 100 grams and density is 0.920 grams per cubic centimeters.

Therefore,

\(m=100 \ g \\d= 0.920 \ g/cm^3\)

Substitute the values into the formula.

\(v=\frac{100 \ g}{0.920 \ g/cm^3}\)

Divide. Note that the grams, or "g" will cancel each other out.

\(v- 108.695652 \ cm^3\)

The volume of the ice cube is 108.697652 cubic centimeters.

Answer:

2.5 m/s²

Explanation:

Given:

v₀ = 15 m/s

v = 45 m/s

t = 12 s

Find: a

a = (v − v₀) / t

a = (45 m/s − 15 m/s) / 12 s

a = 2.5 m/s²

During dump site operations, the tank baffles must have an opening of sufficient size to allow free movement of water at the bottom of the tank and movement of air at the top during rapid filling or unloading.

Land filling can be defined as a biological method that is typically adopted for the effective and efficient treatment of waste products (garbage).

Generally speaking, there are different types of land filling and these include the following:

In conclusion, the dumping waste landfill involves the dumping of solid waste products (garbage) into the landfill site through the use of trucks.

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Complete Question:

During dump site operations, the _____ must have an opening of sufficient size to allow free movement of water at the bottom of the tank and movement of air at the top during rapid filling or unloading.

Let D be the total distance (say in meters) traveled by the train and T the time (say in seconds) it takes to do so. (Assume the train moves in a straight line in only one direction.) Then the average velocity of the train as it covers this distance is

v (ave) = D/T

We're told the train can traverse a distance of D/4 in a matter of T/2 seconds if it moves at a speed of 5 m/s. This means

D/4 = (5 m/s) (T/2)

⇒   5 m/s = 1/2 D/T

⇒   v (ave) = D/T = 10 m/s

The composition of the solution in terms of mole fraction will simply be equal to the mole fraction of the volatile liquid.

It is given that the liquid a is volatile and b is non-volatile. Since the solute a is not volatile, the mole fraction of the solute is not to be taken into account for. Being non-volatile, the liquid aa will not be contributing to the partial pressure. Hence, the partial pressure will only depend on the mole fraction of b which is given to be volatile.

Therefore, here we will only have to consider the mole fraction of the volatile liquid b and not the involatile liquid a.

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"Energy Transformations in an Apple: From Photosynthesis to Digestion." it primarily stores potential energy in the form of chemical energy in the sugars and carbohydrates it produces through photosynthesis. Once the apple falls from the tree, some of this potential energy is converted into kinetic energy as it moves through the air and then into thermal energy as it makes contact with the ground.

When someone eats the apple and it is digested, the stored chemical energy is converted into kinetic energy as it is broken down and the nutrients are absorbed by the body. This energy is then used by the body for various metabolic processes, such as cell repair and growth, as well as physical activity. Eventually, the remaining energy is converted into heat energy and released from the body as waste. Overall, the energy found in an apple undergoes various transformations as it grows, falls, and is digested, but its original source remains as the stored chemical energy in the sugars and carbohydrates.

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Explanation:

The SI unit of measurement for speed is metres per second (m/s) .

Speed : The distance travelled by a body per unit time is know as speed.

Hope it will help.

The rubber is stretched and firmly gripped by the nail due to the pressure inside the tire, which prevents air leakage.

The force of all gas particle/wall collisions divided by the surface area of the wall is the definition of pressure (P): One of the fundamental measurable quantities of this phase of matter, pressure is a property shared by all gases. The amount of force applied to a given area is referred to as pressure.

For instance, the weight of the snow divided by the area of the roof would represent the pressure from snow on a roof. Gases are typically where pressure in chemistry comes from. Gas is added to a balloon before it is inflated. Gas molecules collide with one another and the balloon's walls.

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A)The corresponding decibel level will be 97.4 dB.

B)The sound intensity will be 6.11 × 10⁻⁶ W/m²

C) The decibel level at a distance of 36.0 m is 67.9 dB

A sound wave is produced when a medium begins to vibrate. When an entity vibrates, a pressure wave is formed, which causes sound.

The complete question is;

"A person standing 1.20 m from a portable speaker hears its sound at an intensity of 5.50 ✕ 10−3 W/m2. HINT (a) Find the corresponding decibel level. dB (b) Find the sound intensity (in W/m2) at a distance of 36.0 m, assuming the sound propagates as a spherical wave. W/m2 (c) Find the decibel level at a distance of 36.0 m. dB"

A)

The level of the sound is found as;

\(\rm L = 10 log( \frac{I}{I_0} )\\\\ L= 10 log(\frac{5.50 \times 10^{-3}}{10^{-12}} ) \\\\L= 97.4 \ dB\)

B)

The source is a spherical source, hence a result, the square of the distance from the source here determines how loud the sound is.

\(\rm \frac{I_2}{I_1} =\frac{r_1^2}{r_1^2} \\\\ \frac{I_2}{5.50 \times 10^{-3}} =\frac{1.20^2}{36^2} \\\\I_2= 6.11 \times 10^{-6} \ W/m^2\)

C)

\(\rm L = 10 log( \frac{I}{I_0} )\\\\ L= 10 log(\frac{6.11 \times 10^{-6}}{10^{-12}} ) \\\\L= 67.9 \ dB\)

Hence, the corresponding decibel level, sound intensity, and decibel level at a distance of 36.0 m will be 97.4 dB,6.11 × 10⁻⁶ W/m²and 67.9 dB

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The density of the SF₆ gas at the given pressure and temperature is 2.96 g/l.

The given parameters:

The molecular mass of the SF₆ gas is calculated as follows;

M of SF₆ = 32 + (6 x 19) = 146 g/mol

The density of the SF₆ gas is calculated by applying ideal gas law as follows;

\(PV = nRT\\\\PV = \frac{m}{M} RT\\\\PM = \frac{m}{V} RT\\\\PM = \rho RT\\\\\rho = \frac{PM}{RT}\)

where;

\(\rho = \frac{0.5 \times 146}{0.0821 \times 300} \\\\\rho = 2.96 \ g/l\)

Thus, the density of the SF₆ gas at the given pressure and temperature is 2.96 g/l.

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Answer:

Sample Response: They are used to transmit data, TV signals, and telephone signals. They are also used in ovens and radar.

Explanation:

It will take the car 16.67 sec to catch up with the truck.

Given the data in the question.

Since the car was stationary, then;

Initial velocity of the car; \(u_c = 0m/s\).

Final velocity of the car; \(v_c = 30m/s\).

Time taken for the car to reach given speed; \(t = 10s\).

At \(t = 0\), speed of truck; \(V_{truck} = 25m/s\)

First, we find the acceleration of the car, using the first equation of motion;

\(v = u + at\)

We make "a" the subject of the formula,

\(a = \frac{v-u}{t}\)

We substitute in our values and solve for "a"

\(a = \frac{30m/s - 0m/s}{10s}\)

\(a = 3m/s^2\)

Now, to determine how long will it take for the car to catch up with the truck.

Distance travelled by truck should be equal to distance travelled by car, so;

\(S_{truck\) = \(S_{car\)

We know that, speed; s = distance / time

So, distance of truck \(S_{truck\) = speed of truck × time \(= V_{truck} * t\)

Also, from the second equation of motion; distance "s" is;

\(s = ut + \frac{1}{2}at^2\)

So distance of the car \(S_{car} = ut + \frac{1}{2}at^2\)

We equate

\(S_{truck\) = \(S_{car\)

\(V_{truck} * t\) \(= ut + \frac{1}{2}at^2\)

we make "t" the subject of formula

we know that initial velocity of the car; u = 0

so, we divide both sides by "t"

\(V_{truck} = \frac{1}{2}at\)

\(t = \frac{2V_{truck}}{a}\)

We substitute in our values

\(t = \frac{2 * 25m/s}{3m/s^2}\)

\(t = 16.67s\)

Therefore, It will take the car 16.67 sec to catch up with the truck.

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Answer:

range of wavelength and frequencies is the answer

Explanation:

the defintion is:

the range of wavelengths or frequencies over which electromagnetic radiation extends.

and also

It is the most complete range of all types of radiation that has both electric & magnetic fields and travels in waves.

Making electromagnetic spectrum a electromagnetic spectrum

Range of wavelength and frequencies being the answer

The final temperature of the gas will be 40 degrees Celsius.

The average kinetic energy of gas particles is proportional to the absolute temperature of the gas, and all gases at the same temperature have the same average kinetic energy.

The temperature of a substance is directly related to its kinetic energy. Kinetic energy is the energy that a substance has because  its molecules are in motion, so when a substance absorbs heat, the molecules move faster and the  kinetic energy of the substance increases.

As the average kinetic energy of its particles increases, the  thermal energy of the object increases. Therefore, the thermal energy of an object increases as its temperature increases. Since the average Kinetic Energy has doubled, so has the absolute temperature.

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The magnitude of the electric field at the location of the test charge is  15020 N C-1 or V m-1

We have to use F = E q

Given F = 0.751 N, q = 5*10-5 C

So required E = F /q = 0.751/5*10-5

The electric field at the location E = 15020 N C-1 or V m-1

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Answer:

I think is the The truck because it has more mass

Answer:

39.240 W

Explanation:

Let's start by calculating the work done by the engine. We can assume that it is the same work done by the weight of the object to bring it from 40m to the surface: as much energy it takes to bring it up, the same ammount it takes to bring it down. Said work is \(w= \vec F\cdot \vec{h} = mg h = 1000 \times 9.81\times 40 = 392.400 J\)

At this point we can simply apply the definition of power, that is \(P = \frac wt\), to get the power of the engine is \(39.240 W\)

Answer:

P=39200W

Explanation:

P=(mgh)/t

P=(40×9.8×1000)/10

P=39200W

The concept of the pendulum is used in pendulum clocks to keep time. The pendulum swings back and forth in a continuous motion at a fixed rate that is determined by the length of the pendulum and the force of gravity.

This motion is used to regulate the movement of the clock's gears, which control the hands on the clock face.The mechanism of a pendulum clock is such that when the pendulum swings in one direction, it pushes a toothed wheel or gear, which in turn moves the other gears, causing the clock's hands to move forward.

When the pendulum swings back in the opposite direction, it again pushes the gear, causing the hands to move further forward. This cycle continues, with each swing of the pendulum causing the hands to move forward by a set amount. The length of the pendulum determines the rate at which the hands move forward, with longer pendulums causing the hands to move more slowly.

In a pendulum clock, the pendulum swings back and forth in a continuous motion at a fixed rate that is determined by the length of the pendulum and the force of gravity. This motion is used to regulate the movement of the clock's gears, which control the hands on the clock face. The pendulum clock is an improvement on the original verge escapement clocks, which were prone to errors due to the uneven force of the mainspring.The pendulum is a simple yet effective device that can keep accurate time. Its motion is governed by the law of conservation of energy, which states that energy cannot be created or destroyed, only transferred from one form to another.

When the pendulum is pulled to one side and released, it swings back and forth, converting potential energy into kinetic energy and back again. The period of the pendulum, or the time it takes to complete one full swing, is determined by the length of the pendulum and the force of gravity. By adjusting the length of the pendulum, the rate at which it swings can be altered, allowing it to keep accurate time.

To keep the pendulum clock running accurately, it needs to be adjusted periodically. This is done by altering the length of the pendulum, either by moving a weight up or down along the pendulum rod or by turning a screw at the bottom of the pendulum bob. This alters the period of the pendulum, which in turn changes the rate at which the clock runs.

The pendulum clock is a testament to the ingenuity of humanity. By using the simple yet effective concept of the pendulum, clockmakers were able to create accurate timepieces that revolutionized the way we keep time. Today, the pendulum clock may have been superseded by more advanced technologies, but its legacy lives on in the modern clocks and watches we use every day.

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Answer:

About 22 hours in flight time.

Explanation:

It wouldn't give me the walking time.

Hope I helped ya.

< Sarah >

Answer:

Hmm idk u was tryna take the trip or sum

Explanation:

Therefore, the diameter of the wire is approximately 2.2 μm. The answer is option D.

The resistance (R) of the wire can be calculated using Ohm's law:

V = IR

where V is the voltage of the battery, I is the current flowing through the wire, and R is the resistance of the wire. Therefore:

R = V / I = 1.5 V / 8.0 mA = 187.5 Ω

The resistance of a wire is given by the equation:

R = (ρL) / A

where ρ is the resistivity of the metal, L is the length of the wire, and A is the cross-sectional area of the wire.

Rearranging the equation to solve for A, we get:

A = ρL / R

Substituting the given values, we get:

A = \((2.24 x 10^{-8} m)(1.0 m) / 187.5 = 1.2 x 10^{-11} m^2\)

The cross-sectional area of a wire is given by the equation:

A = π\(d^2\) / 4

where d is the diameter of the wire.

Rearranging the equation to solve for d, we get:

d = 2 √(A / π) = \(2 \sqrt{[(1.2 x 10^{-11} m^2) / pi]}\)

d = 2.2 μm

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