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3 years ago

What is scientific inquiry? Who can use it and what does it involve?

2 answers:

7 0

Scientific inquiry is asking a question about the world and finding out an answer or explanation. It involves:
a. asking questions
b. observing and inferring
c. experimenting
d. collecting and organizing data
e. finding evidence and drawing conclusions
f. repeating the experiment several times
g. peer review
h. locating, interpreting, and processing information from a variety of sources
i. making judgments about the reliability if the source and relevance of information
And of course anyone can use it

torisob [31]3 years ago

3 0

Scientific Inquiry- refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence derived from their work

Anyone can use it and Scientific inquiry involves a person, research tools, space, writing pad, and one, etc.

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A 63-kg hiker is climbing the 828-m-tall Burj Khalifa in Dubai. If the efficiency of converting the energy content of the bars i

konstantin123 [22]

Answer:

$T_f=5854.76$ °C

Explanation:

Given:

mass of hiker, m= 63 kg

height to be climbed, h= 828 m

energy produced by an energy bar, $E= 1.10\times 10^6 J$

heat capacity of the hiker, $c=75.3 J.mol^{-1}.K^{-1}= 4.184 J.kg^{-1}.K^{-1}$

initial body temperature of hiker, $T_i=36.6 \degree C$

The efficiency of converting the energy content of the bars into the work of climbing is 25%, the remaining 75% of the energy released through metabolism is heat released to her body.

We find the energy required for climbing 828 m height:

W=m.g.h

$W=63\times 9.8\times 828$

W= 511207.2 J

∵Hike eats 2 energy bars= $2\times 1.1\times 10^{6} J$

Energy produced $= 2.2\times 10^{6} J$

Now, according to her efficiency:

Total energy required for producing the work of W= 511207.2 J which is required to climb the given height will be (say, E):

$25\% of E= 511207.2$

$\Rightarrow E= 511207.2\times \frac{100}{25}$

$E=2044828.8 J$

Amount of total energy (E) converted into heat(Q) is:

$Q=2044828.8-511207.2\\Q=1533621.6J$

As we know that:

heat, $Q=m.c. (T_f-T_i)$ .................(1)

where:

$T_f$ is the final temperature

Putting respective values in the eq. (1)

$1533621.6= 63\times 4.184\times (T_f-36.6)$

$(T_f-36.6)\approx 5818.16$

$T_f\approx 5854.76$ °C

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3 years ago

What did Rutherford’s model of the atom include that Thomson’s model did not have?

Ksivusya [100]

Rutherford overturned Thomson's model in 1911 with his well-known gold foil experiment in which he demonstrated that the atom has a tiny and heavy nucleus. Rutherford designed an experiment to use the alpha particles emitted by a radioactive element as probes to the unseen world of atomic structure.

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3 years ago

Electromagnets project student guide y’all i need helppppo

Masja [62]

Answer:

I don't know

Explanation:

you need then search here

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4 years ago

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