Mass and distance
If mass is doubled, the force of gravity between the objects is doubled
According to the research, the correct option is A way of discovering and learning about the world. It is the statement that best explains science.
<h3>What is science?</h3>
It is a set of knowledge that can be organized on a structure and helps us to answer phenomena or questions about the world.
In this sense, this set of organized knowledge is obtained from the observation of natural phenomena and the systematic and reasoned study of nature.
Therefore, we can conclude that according to the research, the correct option is A way of discovering and learning about the world. It is the statement that best explains science.
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Answer:
18 V
Explanation:
Let
r = Radius of pollen grain = (general value)
E = Electric field =
Electric field is given by
Voltage is given by
The maximum voltage is 18 V
<u>Answer:</u>
A perfect example of wave reflection is an <u>echo</u>.
<u>Explanation:</u>
A wave reflection takes place when waves cannot pass through a surface and in turn they bounce back. It is not necessary that wave reflections can only happen with sound waves, they can also take place in light waves. Also, the waves which are reflected have the same frequency as the original wave, but their direction is different. When a wave strikes an object in the same angle, they bounce back straight but when they hit an object with different angle, their direction changes.