I would say B.
Explanation: Peer review improves the quality of research papers.
<span>I believe the elements that make up aspirin are carbon, hydrogen and oxygen. </span>
Answer:When conducting research, scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis (often in the form of an if/then statement), the results aiming to support or contradict a theory.
Explanation: A hypothesis is by definition an initial interpretation or explanation. A hypothesis can be proven wrong and is usually proven wrong via the testing of it during experimentation.
Answer : The change in energy of an atom is,
Solution : Given,
Wavelength of the photon =
Formula used :
where,
E = energy of an atom
h = Planck’s constant =
c = speed of light =
= wavelength of photon
Now put all the given values in the above formula, we get the energy of an atom.
Therefore, the change in energy of an atom is,
* Answer: 448.056 meters *
——
1 yard = .9144 meters (according to Google)
100 yards= 91.44 meters
——
100*4.9= 490 yards
490 yards = 448.056 meters
* 4.9 Football fields= 448.056 meters *
I hope this helps! :)