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The distances between molecules in solids are very small, i.e., solids are more dense - as compared to liquids and gases. Because they are so close, than can collide very quickly, i.e. it takes less time for a molecule of the solid to 'bump' into its neighborhood. Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids. The distances in liquids are shorter than in gases, but longer than in solids. Liquids are more dense than gases, but less dense than solids, so sound travels 2nd fast in liquids. Gases are the slowest because they are the least dense: the molecules in gases are very far apart, compared with solids and liquids. Sound travels faster in liquid than air and fastest in solids. Thus Vi>Vw>Va
Point P is 40 m to the south of point Q. Point R is 30 m to the east of point P. Point S is 20 m to the south of point R. Point S is exactly midway betw...
what is the difference between the sum of distance of HI+IG and DK+ID?
Purab faces towards north. Turning to his right, he walks 25 metres. He then turns to his left and walks 30 metres. Next, he moves 25 metres to his righ...
What is the shortest distance between point M and point N?
Tanya goes to her parlour from her home. Initially, Tanya starts walking in east direction and after walking for 7km, she reaches at point L. From poin...
Eight points D, E, F, G, H, I, J, and K are marked in a school field. D is 12m south of F. I is 3m east of K, which is 8m south of E. G is 14m north of ...
In the morning Ram and Shyam were talking to each other face to face. If Ram’s shadow was exactly right to Shyam. Which direction Shyam is facing?
Point D is 3m to the West of Point R. Point A is 6 m to the North of point D. Point K is 16 m to West of point A. Point K forms a midpoint of the vertic...
Q is 40 meter to the East of R. S is 36 meter to the north of R and 20 meter to the west of T. U is 50 meter to the South of T. U is 20 meter to the We...
Sanjay walks 20 km in the north direction, then turns in the east direction and walks 4 km.Then in which direction he is now with respect to the start...
