All categories

4 years ago

When coal is burned, _ energy is being converted to _ energy.

Physics

2 answers:

vazorg [7]4 years ago

8 0

Chemical energy is converted to heat and light energy.

LuckyWell [14K]4 years ago

6 0

When coal is burned, Chemical energy is being converted to Heat/Thermal energy.

As we energy is being neither created nor destroyed but transforms or converts from one form to another. In this way, chemical energy is stored in fuels like coal and when we it is burned, the energy is being converted to chemical energy.

You might be interested in

Where were the girls heading when the car broke down? in the movie *hidden figures*

Ilia_Sergeevich [38]

Explanation:

Katherine Johnson, NASA Mathematician Featured in 'Hidden Figures,' Dies at 101

Feb 25, 2020 — Their story was told in the 2016 Hollywood film “Hidden Figures,” based on Margot Lee Shetterly's nonfiction book of the same title , ...

5 0

3 years ago

An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99 amu, 0.26% abundance with 20.99

sashaice [31]

Answer: The average atomic mass of the given element is 20.169 amu.

Explanation:

Average atomic mass of an element is defined as the sum of masses of the isotopes each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$ .....(1)

We are given:

For isotope 1:

Mass of isotope 1 = 19.99 amu

Percentage abundance of isotope 1 = 90.92 %

Fractional abundance of isotope 1 = 0.9092

For isotope 2:

Mass of isotope 2 = 20.99 amu

Percentage abundance of isotope 2 = 0.26%

Fractional abundance of isotope 2 = 0.0026

For isotope 3:

Mass of isotope 3 = 21.99 amu

Percentage abundance of isotope 3 = 8.82%

Fractional abundance of isotope 3 = 0.0882

Putting values in equation 1, we get:

$\text{Average atomic mass}=[(19.99\times 0.9092)+(20.99\times 0.0026)+(21.99\times 0.0882)]$

$\text{Average atomic mass}=20.169amu$

Hence, the average atomic mass of the given element is 20.169 amu.

4 0

4 years ago

Which statement describes a switch in an electrical circuit?

elena55 [62]

Answer:

It I’d B

Explanation:

Ape.x

6 0

3 years ago

Read 2 more answers

How does an electromagnet become permanent

love history [14]

A moving electrical charge produces a magnetic field and a moving magnetic field produces an electrical field. An electromagnet works by coiling a bunch of wire and spinning a couple of magnets around that wire at high speeds. When this occurs the magnets induce an electric current in the wire and hence the electricity production. Once the magnets stop spinning, the induced electrical field dissipates and the current stops flowing through the wire.

6 0

3 years ago

4. What is the acceleration of the car in each section? b с d a

makvit [3.9K]

Answer:

0-4 acceleration comes at 12 m/s where (B) stagnates at 12 m/s and remains for 4 seconds (C) is breaks being activated slowing the car to 6 m/s in 2 seconds and (D) over the course of 4 seconds brings the car to 10 m/s.

Explanation:

3 0

3 years ago

Read 2 more answers

When coal is burned, _____ energy is being converted to _____ energy.

When coal is burned, _ energy is being converted to _ energy.