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Daniel [21]
3 years ago
12

Consider that the room is a closed system. Ryan uses the chemical energy in his muscles to create the energy of motion. He uses

this energy of motion to pull the string on the clapper of a bell to produce a sound. Sound fills the room.
Which describes the energy in this room?



A.
As energy changes forms, total energy decreases.


B.
As energy changes forms, total energy increases.


C.
While energy is changing forms, total energy at first increases, then decreases.


D.
While energy has taken different forms, total energy remains the same.
Chemistry
2 answers:
Vilka [71]3 years ago
6 0
D.

This is in accordance with the law of conservation of energy.
Natasha2012 [34]3 years ago
6 0

Answer:

I belive its D.

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What dose the word scientific method means
g100num [7]

Answer:

Scientific Method - steps to use when doing an experiment.

1. Make a question

2. Do some Research

3. Hypothesis - make a guess

4. Test and Collect Data

5. A conclusion

3 0
2 years ago
I need help on either question you can answer. Thank you god bless
Stels [109]
<h3>Further explanation</h3>

1.Atomic Number (Z) = Mass Number (A) - Number of Neutrons

neutrons = mass number-atomic number

Atomic mass Cl-37= 17

Mass number Cl-37=37

Neutrons = 37-17=20

2. Mass atom X = mass isotope 1 . % + mass isotope 2.%...

\tt atomic~mass~X=0.0224\times 88+0.7832\times 90+0.1944\times 91=90.1

3. The energy in one photon can be formulated as

\large{\boxed{\bold{E\:=\:h\:.\:f}}}

f = c / λ, so :

\tt E\approx f\approx \dfrac{1}{\lambda}

Energy is directly proportional to frequency and inversely proportional to the wavelength

So, as the frequency of photon increases, the energy of photon increases

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A. The wavelength becomes longer, and the energy decreases

7 0
2 years ago
The mass of an object is 100 mg. What is the object's mass in kg?
juin [17]
0.0001 is the objects mass because you go from mili, to centi, deci, gram, deca, hecta, Kila. that's 6 decimal points which is what times you 3 zeroes before the 1. The decimal point started out at the end of 100 and moved 6 places to be 0.0001
7 0
3 years ago
Read 2 more answers
Calculate the volume of 0.10 g of titanium (4.51 g/cm³).
Juli2301 [7.4K]

The volume of titanium with mass of 0. 10g and density of 4. 51 g/cm³ is 0. 02 cm³

<h3>What is volume?</h3>

Volume is known to be equal to the mass divided by the density.

It is written thus:

Volume = Mass / density

<h3>How to calculate the volume</h3>

The volume is calculated using the formula:

Volume = mass ÷ density

Given the mass = 0. 10g

Density = 4.51 g/cm³

Substitute the values into the formula

Volume of titanium = 0. 10 ÷ 4.51 = 0. 02 cm³

Thus, the volume of titanium with mass of 0. 10g and density of 4. 51 g/cm³ is 0. 02 cm³

Learn more about volume here:

brainly.com/question/1762479

#SPJ1

4 0
2 years ago
What is the atomic number of this atom?
PIT_PIT [208]

Answer:

2?????

Explanation:

6 0
3 years ago
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