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3 years ago

Can someone give me a situation where energy is being transferred, transformed or both? Thank you!

1 answer:

8 0

Chemical energy in the coal is converted into thermal energy in the exhaust gases of combustion. Thermal energy of the exhaust gases converted into thermal energy of steam through heat exchange. Thermal energy of steam converted to mechanical energy in the turbine.

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A girl takes her dog for a walk on a sunny beach. Find the force of gravity between the 45-kg girl and her 11-kg dog when they a

Lady_Fox [76]

The gravitational force acting between them is $8.25*10^-^9N$

Data given;

M1 = 45kg
M2 = 11kg
r = 2.0m
G = $6.67*10^-^1^1m^3kg^-^1s^-^1$

To solve this question, we need to apply gravitational force or energy formula.

<h3>Gravitational Force</h3>

This states that the force of attraction between two bodies is equal to the product of their bodies and inversely proportional to the square of their distance apart.

Mathematically;

$F = \frac{GM_1M_2}{r^2} \\$

let's substitute the values and solve

$F = \frac{Gm_1m_2}{r^2}\\F = \frac{6.67*10^-^1^1 * 45 * 11}{2^2}\\F = 8.25*10^-^9N$

The force of gravity acting between them is $8.25*10^-^9N$

Learn more on gravitational force here;

brainly.com/question/11359658

4 0

3 years ago

Blood cell : ____________ :: bacteria : _________________

DIA [1.3K]

Blood cell : Eukaryotic cell
and
Bacteria : Prokaryotic cell.

3 0

3 years ago

The model below shows a carbide ion. 8 light grey and 6 dark grey balls sit at the center with 2 concentric black rings around t

azamat

Answer:

This carbide ion change into a neutral carbon atom.

Explanation:

Given that,

Light grey balls = 8

dark grey balls = 6

medium grey balls = 2

Charge on dark grey ball = +1

Charge on light grey ball = 0

Charge on medium grey ball = -1

We need to change this carbide ion to a neutral carbon atom

Using given data

A dark grey ball has one positive charge. It means, it is a proton.

A light grey ball has has zero charge. It means, it is a neutron.

A medium grey ball has one negative charge.It means, it is a electron.

We know that,

The number of proton and number of electron is equal in a neutral atom.

So, No charge is present on the given model of atom.

Therefore, we can say that the atom is neutral.

We know that,

The sum of total number of protons presents in an atom it is called atomic number.

So, The total number of protons is 8, the total number of electrons is 8 and the total number of neutrons is 9 in given atom.

Hence, This carbide ion change into a neutral carbon atom.

6 0

4 years ago

Write the word equation, balanced symbol equations and ionic equation got magnesium carbonate

Finger [1]

Explanation:

Mg-2+C+4>Mg2C.

Here you divide the four by the two and transfer the two toMg. In reactions like this oxidation numbers are exchanged.

7 0

3 years ago

A ball rolls 60 centimeters along a sidewalk in 5 seconds what is the speed of the ball.

meriva

Answer:

12 cm/s

Explanation:

Quite simply, you are looking for cm/s

so 60 cm / 5s = 12 cm/s

6 0

2 years ago

Read 2 more answers