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3 years ago

Boiling water transfers energy to an ice cube this is an example of ?

2 answers:

8 0

Its a transfer of tradition when something getting raditon its getting heated up by the sun Its not conduction because conduction is use to with metals its not convection because convection uses heat transfer I pick radiation because of the ozone layer its a good example when the sun radiates the Earth giving off heat waves the ozone payer helps protect the Earth from getting burned.

So your answer is radiation.

nadya68 [22]3 years ago

7 0

_to_ and ice cube? example of hydrophelosis.

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By paying low wages, factory owners were able to

sweet [91]

To make more profit and make their business/company’s lager this also means that the customers that buy products have more variety of choices

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4 years ago

Determine the percentage composition by mass of each of the elements in the following compounds

adoni [48]

Answer:

63.9%

Explanation:

moral mass of x (# x ions) -divided by- Moral mass of compound.

% of cl = (35.5g) (2 cl ions) -divided by- 111.1g × 100

%= 63.9%

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2 years ago

Each year, due to growing population and energy demands, the United States faces increasing dependency on conventional fossil fu

laiz [17]

Answer:

A) (i) 4*10^12 Ibs , (ii) 600 * 10^9 Ibs

(iii)

Wind energy is a clean energy : this is because there is no consumption of fossil fuels when using wind energy to generate electricity
Wind energy is a renewable energy : wind is reusable and it is always available for use

B) The use of bricks or stone that can absorb the solar heat easily when the sun rays heat them up and this solar heat absorbed . is a typical example of a passive solar heating system.

C) Advantage : It is mostly cost free

disadvantage : there is no storage mechanism

Explanation:

A) Given that U.S uses roughly 4 million Gigawatt-hours per year in electricity and 50% of the electricity comes from coal

i) Determine how much carbon dioxide is released from burning coal each year

since 50% of electricity comes from coal

The Total energy produced by coal =2*10^12 Kw-h. also

1.0 kilowatt-hour of coal burned releases 2 lbs.

hence the Total amount of Carbon dioxide released from burning coal each year = 2 * 2 * 10^12 = 4 * 10^12 Ibs

ii) Determine the reduction of carbon dioxide entering the atmosphere each year if coal usage could be reduced by 15% by utilizing solar energy

= 15% 0f 4*10^12

reduction of coal usage by 15% = 600 * 10^9 Ibs hence the amount of coal entering the atmosphere is reduced by 600 * 10^9 Ibs

iii) Advantages of using wind energy to generate electricity

Wind energy is a clean energy : this is because there is no consumption of fossil fuels when using wind energy to generate electricity
Wind energy is a renewable energy : wind is reusable and it is always available for use

B) Passive solar heating system

The use of bricks or stone that can absorb the solar heat easily when the sun rays heat them up and this solar heat absorbed . is a typical example of a passive solar heating system.

C) advantage and disadvantage of solar heating system

Advantage : It is mostly cost free

disadvantage : there is no storage mechanism

5 0

3 years ago

The density of piece of wood will remain the same regardless of its temperature true or false

Readme [11.4K]

I believe that the answer would be true

8 0

4 years ago

What is a chemical reaction??? koi h

Andru [333]

A chemical reaction is a process in which one or more substances referred to as reactants are converted into one or more substances referred to as products.

A chemical reaction can be defined as a chemical process that gives as a result one or more substances referred to as products of that reaction.

A chemical reaction is catalyzed by specific proteins called enzymes, which are capable of lowering the activation energy of a chemical reaction.

The most common types of chemical reactions include decomposition, synthesis, single and double replacement.

In conclusion, a chemical reaction is a process in which one or more substances referred to as reactants are converted into one or more substances referred to as products.

Learn more about chemical reactions here:

brainly.com/question/6876669

4 0

2 years ago