Answer:
The second option- a substance that a wave can travel through.
Explanation:
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(brainliest please)
The initial force of motion and inward acting force
Answer:
the answer from my side is both vertical and horizontal
Answer:
1) 
2) 
3) 
4) The Molecules do not burn because of the presences of hydrogen bond in place
Explanation:
From the question we are told that
latent heat of vaporization for water at room temperature is 2430 J/g.
1)Generally in determining the molar mass of water evaporated we have that
-One mole (6.02 x 10. 23 molecules)
-Molar mass of water is 18.02 g/mol
Mathematically the mass of water is give as


Therefore


b)Generally the evaporation speed V is given as
Mathematically derived from the equation
To Give



c)Generally the equation for velocity 
Therefore
Effective temperature T is given by

where


4) The Molecules do not burn because of the presences of hydrogen bond in place
Scientists<span> use the </span>scientific method<span> to make testable explanations and predictions about the world. A </span>scientist<span> asks a question and develops an experiment, or set of experiments, to answer that question.
</span><span>Ask a QuestionDo Background ResearchConstruct a HypothesisTest Your Hypothesis by Doing an ExperimentAnalyze Your Data and Draw a ConclusionCommunicate Your Results</span>