when water boils, it becomes steam .its particles spread out and occupy a greater volume. has its density increased or decreased
2 answers:
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D. Atoms.
Explanation:
All the matter is made of elementary particles called "atoms".
Further, an atom is made of electrons, protons and neutrons. The electrons & protons are again made of the fundamental sub-particles, electrons (leptons) and the protons(quarks).
The classification of particles is shown in the figure attached
Answer:1.63 m
Explanation:
Given
mass of block
inclination
Amount of work done
block slides a distance s along the Plane
Work done =change in Potential Energy
Increase in height of block is
Change in Potential Energy
Answer:
The length of open-open pipe needed is 6.23 m
The length of open-close pipe needed is 3.11 m
Explanation:
Fundamental frequency for standing wave mode of an open- open pipe is given by
where v is the velocity and L is the length
The length of open-open pipe needed is
Fundamental frequency for standing wave mode of an open- close pipe is given by
The length of open-close pipe needed is