One of the challenges of tidal wave energy is: the start-up costs are expensive. the materials needed to couple the tidal energy to electricity are rare. the tides are very unpredictable. as global warming increases, the tides will diminish.

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Answer 1

Answer:

One of the challenges of tidal wave energy is the start-up costs are expensive. Because it needs materials that do not erode quickly and can withstand the pressure of the incoming waves. This is another form of a renewable source of energy.

Answer 2

Answer:

Answer:

if your on odyssey the correct answer is A. the start-up costs are expensive.

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What is the process of preparing a person to perform strenuous work and to recover from that work as quickly as possible?

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The process of preparing a person to perform strenuous work and to recover from that work as quickly as possible is called training, I bet. Such warm up exercises as like stretching and other should lead person to the recovery. Hope it will help.

Why does the number of dwarf planets recognized by astronomers in the solar system sometimes increase?

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Because sometimes it happens that they discover a dwarf planet
that nobody ever knew about before. When that happens, they
ADD the new one to the list of known dwarf planets, and then the
total number of dwarf planets on the list increases by 1 .

According to newton's third law of motion, when a hammer strikes and exerts force to push it into a piece of wood, the nailA. creates a friction with the hammer
B. exerts an equal force on the wood
C. exerts an equal or opposite force on the hammer
D. moves at a constant speed

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According to newton's third law of motion, when a hammer strikes and exerts force to push it into a piece of wood, the nail C. exerts an equal or opposite force on the hammer. The third law of motion states that every action has an equal BUT opposite reaction. This means that the nail exerts the same force the hammer exerts on it.

Is newton third law accurate for electric forces?

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An object with greater charge will exert a greater force on an object than an object with smaller charge would. However, if you consider two charges that exert a force on each other, regardless of the magnitude of charge, both charges will exert an equal force on each other because of Newton's third law.

Lead has a density of 11.3 g/cm3 and a mass of 282.5 g. What is its volume?

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Well we know that density=mass divided by volume, so let's substitute :)

11.3=282.5/V

Now we know that 282.5 has to be divided by SOMETHING in order to get 11.3.

You can waste time trying every number under the sun, or you can use a little trick I learned in elementary school which is to divide 282.5 by 11.3. This works because it shows how many times 11.3 goes into 282.5 which is the volume of this "piece of" lead. Since 11.3 goes perfectly 25 times into 282.5, the Volume of this "piece of" lead is 25 cm³. :)

The state of matter with a specific volume but no definite shape is the _____ state. plasma
gas
liquid
solid

Answers

Answer

Liquid

Explanation

There are four states of matter. Gas, liquids, plasma and solids.

Solids has a definite shape.

Gas and plasma has no definite volume.

Liquids are made up of very small vibrating particles called molecules that are held together by intermolecular forces. This makes the liquid to have a definite volume and no definite shape.

Liquids are ideally incompressible, so their volume barely changes. They also adapt to whichever shape.

liquid

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