According to Huygens' principle, every point on a wave front acts as a source of a new ____wave. A). transverse. (B). spherical. (C). longitudinal. (D). sinusoidal (E). plane.

Answer:

bro we cant do this

Explanation:

Answer:

The energy resource brought into a coal power plant is coal.

Found the answer at: https://www.tva.com/energy/our-power-system/coal/how-a-coal-plant-works#:~:text=Coal%2Dfired%20plants%20produce%20electricity,to%20start%20the%20process%20over.

The waste produced by coal power plants is coal ash and the energy produced by coal power plants is electricity.

Answers found at: http://www.groundtruthtrekking.org/Issues/AlaskaCoal/Coal-Ash-Combustion-Wastes.html       and        https://www.tva.com/energy/our-power-system/coal/how-a-coal-plant-works#:~:text=Coal%2Dfired%20plants%20produce%20electricity,to%20start%20the%20process%20over.

The two laws of thermodynamics apply to what I found out in my research because I know that the entropy increase due to the combustion of conventional fuels is much larger than that resulting from that of nuclear fuels, and is therefore much more dangerous. Also, I know that heat is used to burn coal and create energy.

Found answer at: https://www.encyclopedie-energie.org/en/energy-consumption-and-entropy-release-in-the-biosphere/

Explanation:

Hope this helps, i got an okay score on it but better than nothing i guess lol

Explanation:

hope it is helpful to you

The most reasonable prediction Sarah can make for the total mass of the products of this reaction would be = 19g.

The law of conservation of mass states that mass in neither created nor destroyed but can be changed from one form to another.

From the set up of the reaction carried out by Sarah, the container was in an enclosed medium.

Therefore since there is no loss of mass, the total mass of the products of this reaction would be = 11+8 = 19g.

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Assuming E remains constant, differentiate both sides of this expression with respect to time we get kx=-ma.

Given E=1/2mv²+1/2kx².

      ⇒ 2E=mv²+kx²

Differentiating both sides of this expression with respect to time(t) we get

  0=m(2v)dv/dt + k(2x)dx/dt

⇒0=(mv)dv/dt + (kx)dx/dt

We know that dv/dt=a (acceleration) and dx/dt= v (velocity)

⇒0=mva + kxv

⇒kxv= -mva

⇒kx= -ma

So assuming E remains constant, differentiate both sides of this expression with respect to time we get kx=-ma.

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Constellation is a group of stars that appears to form a pattern or picture. Some of the constellations include Orion, Taurus, Canis Major etc.

Orion is located on the celestial equator and it can be seen throughout the world. This constellation is named after the hunter, in Greek mythology. It is one of the most obvious and recognizable constellations in the sky. Orion is most visible in the evening sky from January to April, during winter season in the Northern Hemisphere, and summer season in the Southern Hemisphere. In the tropics, the constellation moves at the zenith. Orion is bordered by Taurus to the northwest, and by other constellations in other directions.

Taurus is one of the constellations of the 12 zodiac signs. It is a large and prominent constellation in the Northern Hemisphere during winter. It is one of the oldest constellations. The International Astronomical Union gave a three-letter abbreviation for the constellation, as "Tau". During late November-early December, Taurus occupies a furthest point from the Sun and is visible the entire night. By late March, it sets at sunset and completely disappears behind the Sun's glare from May to July.

Canis Major is a constellation in the southern celestial hemisphere. It is a Latin name, which means 'greater dog' in contrast to 'Canis Minor' meaning 'lesser dog'. These both figures are commonly represented as following the constellation of Orion, the hunter, through the sky. Canis Major contains Sirius, the brightest star in the night sky, known as the "dog star". It is bright because of its proximity to the Solar System.

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Answer:

You could claim that Pluto is a planet as it rotates around our sun.

Explanation:

Hope that helps :)

Answer:

IAU downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one it has not cleared its neighboring region of other objects.

Answer: The tile floor.

Explanation:

We can think of this as follows:

By the second Newton's law, we know that:

F = m*a

force is equal to mass times acceleration.

Now, as the egg hits the ground, we can think that there is a force that is applied in a very short period of time.

(similar to the case of a bat hitting a baseball)

Ok, the total energy of the impact will be the same for any surface in which the egg falls.

But suppose that the egg falls in a carpet, in this case, the carpet has a kinda large collision time (the time that the force is applied to the egg), this means that we will have a smaller force, acting for a long period of time. Now if the egg falls on something harder, like the tile floor, the collision time will be a lot shorter, then the force must be a lot stronger to compensate, this force is so large, that breaks the shell of the egg.

the tile floor is then the correct answer.

ANSWER:

46.08 kg

STEP-BY-STEP EXPLANATION:

Given

m1 = 1152 kg

v1 = 0.06 m/s

v2 = -1.5 m/s

We apply law of conservation of linear momentum:

We plug in and calculate for the mass, just like this:

Which means that the mass of the pianist is 46.08 kg

50 POINTS WASTED IMAO

All of the statements concerning power-split CVTs provided in the question are actually true. Let's go through each statement to confirm this.

1. One of the planetary members must be held to make the power-split CVT work: In a power-split CVT, the planetary gearset is used to split and distribute power between the internal combustion engine (ICE) and the motor-generators. To achieve this, one of the planetary members needs to be held stationary, which allows the power to be transmitted through the different components of the CVT.

2. The ICE and motor-generators are all connected through a planetary gearset: This statement is also true. The power-split CVT consists of a planetary gearset that connects the ICE and the motor-generators. The ICE is connected to the ring gear, while the motor-generators are connected to the sun gear and the carrier. This arrangement enables power flow between the different components.

3. The power-split CVT can operate in electric mode only: This statement is also correct. The power-split CVT can operate in electric mode when the vehicle is running solely on electric power from the motor-generators. In this mode, the ICE is not running, and the power is supplied by the battery and the motor-generators.

4. Power-split CVT systems do not use a separate starter motor: This statement is true as well. In power-split CVTs, the motor-generators are used for both starting the engine and providing additional power during operation. This eliminates the need for a separate starter motor.

In conclusion, all of the statements provided in the question are actually true, so there is no exception among them.

More than 100 words.

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SMM2 refers to the Standard Method of Measurement 2. It is a document that specifies the method and processes used in measuring buildings and civil engineering works. SMM2 is commonly used in the construction industry.

The following are explanations of the clauses under Standard Method of Measurement 2 (SMM2):

i. D.10: This clause under SMM2 relates to the painting of metal and timber surfaces. It stipulates that when painting the surfaces of timber or metal, the preparation of surfaces and application of paint must conform to manufacturer specifications. It also specifies that the paint must be applied using a brush, roller, or spray. The clause then goes on to outline specific measurements for the thickness of paint coating to be applied on surfaces.

ii. D.12.4: This clause under SMM2 refers to the construction of walls using concrete blocks. It states that the concrete blocks used should have a minimum density of 1500 kg/m3. It also outlines specific measurements for the thickness of the mortar to be used for bonding the blocks together. The clause further specifies the measurement of the joint thickness between blocks.

iii. D.12.6: This clause under SMM2 refers to the rendering of walls with a cement mortar mix. It specifies that before rendering, the surface of the wall must be clean, dry, and free of debris. It also outlines specific measurements for the thickness of the rendering to be applied to the wall. The clause then stipulates that the rendering should be finished with a smooth surface that conforms to the architect's specifications.

iv. D.12.8: This clause under SMM2 refers to the painting of interior plastered walls. It stipulates that the preparation of surfaces and application of paint must conform to manufacturer specifications. It also specifies that the paint must be applied using a brush, roller, or spray. The clause then goes on to outline specific measurements for the thickness of paint coating to be applied on surfaces.

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Answer:

   v = 72 km / h

Explanation:

The definition of average speed is the distance traveled between the time interval

          v = Δx / Δt

let's find the distance traveled

       x = 60 + 30

       x = 90 km

time spent, all time must be included, travel time and when stopped

       t = 0.45 + 0.15 + 0.5+ 0.15

       t = 1.25 h

we substitute in the initial equation

      v = 90 / 1.25

       v = 72 km / h

in going from one city to the other

Answer:

Explanation:

In this case, a dark shirt or blanket would be a heat conductor as well as metal would be, too

Answer and Explanation:Option A->The innermost layer of the earth is known as the core. It is divided into inner core and outer core. It comprises of a high concentration of nickel and iron.

Freeman Alphonsa Hrabowski is an American educator, advocate, and mathematician.

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The primary objective of Porter's Five Forces model is to analyze the competitive forces within an industry and assess its overall attractiveness.

Porter's Five Forces model is a strategic framework developed by Michael Porter to analyze the competitive forces within an industry.

Porter's Five Forces model, developed by Michael Porter, is a framework used to evaluate the competitive dynamics and profitability potential of an industry. The model examines five key forces that shape competition within the industry:

The threat of new entrants: Determines how easy or difficult it is for new competitors to enter the market.

Bargaining power of suppliers: Assesses the influence suppliers have in terms of pricing, quality, or supply availability.

Bargaining power of buyers: Examines the influence customers have in negotiating prices and terms.

The threat of substitute products or services: Considers the potential for alternative products or services that can fulfill the same customer needs.

The intensity of competitive rivalry: Analyzes the level of competition among existing firms in the industry.

By analyzing these forces, the model aims to provide insights into the overall attractiveness and competitiveness of the industry. It helps businesses identify their competitive position, understand market dynamics, and develop effective strategies to gain a sustainable advantage.

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Answer: D. Is the jelly like fluid within a cell

watch the cell rap

Answer:

What I think that Jose's grandmother meant by saying that the bread was too dense is that she thinks the bread is too heavy or it can even mean to be too compacted in substance. The matter in the bread are close together and not spread out like in the air, when the matter in the air starts to come closer together it starts to make fog, because it is becoming more dense. Some more things that are heavy or dense are things like a big stereo speaker, an anvil, or even a big piece of wood used to build.

Explanation:

True, surface air can become warmer and drier due to compressional heating in a downslope wind.

As air is forced down a mountain slope, it is compressed and the air molecules become more tightly packed together. This increased pressure results in an increase in temperature, known as compressional heating. This can cause the air to become warmer and drier as it descends down the slope. This process is known as a foehn wind, and it is common in mountainous regions around the world. The warm and dry conditions created by a foehn wind can have significant impacts on the local environment and climate, affecting everything from agriculture to wildfire risk.

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By ideal gas approximation, the final pressure is 75.76 atm.

We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation

P . V = n . R . T

where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.

From the question above, we know that

P1 = 50 atm

T1 = 330 K

T2 = 500 K

When the initial and final volume is the same, we can use the ratio of pressure and temperature as

P1 / P2 = T1 / T2

50 / P2 = 330 / 500

P2 = 50 x 500 / 330

P2 = 75.76 atm

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The car will skid to a stop after traveling approximately 80.5 meters.

To solve this problem, we can use the work-energy theorem and the equation for friction. The work done by the frictional force is equal to the change in kinetic energy of the car:

The work done by the frictional force is equal to the force of friction times the distance traveled:

The force of friction is equal to the coefficient of friction times the normal force, which is equal to the weight of the car:

Substituting these equations and solving for d, we get:

where K_i is the initial kinetic energy of the car, which is equal to (1/2) * m * v², and K_f is the final kinetic energy of the car, which is equal to 0.

Plugging in the given values, we get:

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Answer:

It completely melts and has a final temperature of 22.4°C

Explanation:

(I am very bad at explaining, I am not a teacher, I am a student but I had exact same question on my test so I wanted to help.)

Okay, well to find the Heat required to melt Ice, we have to use the equation:

Q=(m·cΔT)+(m·hf)

So we can just plug in the values into the equation and see which one adds up too 80,000. (there is probably a better way i just did it this way)

For this situation, we know that:

So we can just change the value of change and temperature and see which one equals 80,000.( I will bold the value of change in temperature.)

Q=(m·cΔT)+(m·hf)

So which one equals 80,000? Equation #3 with the temperature at 22.4 °C

So the answer would be It completely melts and has a final temperature of 22.4°C.

Hope this makes sense, again I am not a teacher I am so bad at explaining, but I did my best. ;)

The composite figure is a combination of a rectangular pyramid and a rectangular prism, hence its volume is 140in³.

A rectangular prism is simply a three dimensional solid shape with six faces that are rectangles.

Volume of a rectangular prism is expressed as;

V = w × h × l

Where l is length, h is height and w is width

A rectangular pyramid is simply a three-dimentional object with a rectangular shaped base and triangular shaped faces that correspond to each side of the base.

The volume of rectangular pyramid is expressed as;

V = (1/3) × l × w × h

Where l is the base length, w is the base width and h is the height of the pyramid.

From the diagram below;

First we calculate the volume of a rectangular prism.

V = w × h × l

V = 3in × 4in × 7in

V = 84in³

Hence, the volume of the rectangular prism is 84in³.

Next, we calculate the volume of rectangular pyramid.

V = (1/3) × l × w × h

V = (1/3) × 7in × 3in × 8in

V = (1/3) × 168in³

V = 56in³

Hence, the volume of the rectangular pyramid is 56in³.

Volume of the composite figure = Volume of prism + Volume of pyramid

Volume of the composite figure = 84in³ + 56in³

Volume of the composite figure = 140in³

Therefore, the composite figure is a combination of a rectangular pyramid and rectangular prism, hence its volume is 140in³.

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Oh, yes.  It's definitely true.

The answer to your question is:  

Because the Earth has something like (6 x 10²⁴) times as much mass as the apple has.

So when equal, opposite gravitational forces act on both of them, the apple's downward acceleration toward the Earth is something like  (6 x 10²⁴) times as much as the Earth's upward acceleration toward the apple.

The apple doesn't spend too much time falling, before it hits the ground and both bodies stop moving toward each other.  In that time, the apple travels something like  (6 x 10²⁴) times farther than the Earth does.

So if the apple falls a mile down from the branch of the tree, then the Earth moves something like 0.000 000 000 000 000 000 011 inch up toward it.

THAT's why Earth's motion is not noticeable to us.  

Answer:The mechanical advantage of a machine is always less than its velocity ratio.It is because mechanical advantage decreases due to the friction and weight of moving parts of the machine, but the velocity ratio remains constant.

Explanation: hope this helps

Answer:

wool

Explanation:

Wool comes from sheep.  Rayon, candles (the paraffin type) and petrochemicals all come from petroleum.