Difference in distance covered = (240 - 180) = 60 km
But since speeds differ by 20 kph, difference in distance is (20 x #hours).
60 = 20 x #hours
#hours = 60/20 = 3 hours.
Fast car covers 240 in 3 hours ---> 80 kph
Slow car covers 180 in 3 hours ---> 60 kph
30 km/hr
They are both numbers, not velocities. Neither is faster than the other.
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The employee travels 26 miles in one day. Since the employee travels for five days each week, he travels 26*5, or 130 miles in one week.(This only considers the miles traveled to and from work, since no information is given about any other travel.)
It's one another.
30 km/hr
yes, sound travels faster in liquids and solids than in gases e.g. faster in water than through air. The denser the solid, the faster the sound travels.
Light travels faster in a vacuum than in any other medium, such as air or water. Its speed in a vacuum is approximately 186,282 miles per second (299,792 kilometers per second).
There are too many 'materials' to list but generally, sound travels faster in solids than in liquids, and faster in liquids than in gases. In other words, the denser the material, the faster sound travels.
Lightning travels approximately at 60,000 miles a second (96,560 kps), while sound travels at a pokey one-fifth of a mile per second (20 kps). I think you might have actually been referring to light, not lightning, which travels at 186,411 miles per second (300,000 kps). In other words, light travels almost a million times faster than sound.
There are too many 'materials' to list but generally, sound travels faster in solids than in liquids, and faster in liquids than in gases. In other words, the denser the material, the faster sound travels.
The speed of sound in a medium is influenced by factors like the density and elasticity of the medium. In general, sound travels faster in denser and more elastic materials. For example, sound travels faster in solids than in liquids, and faster in liquids than in gases.
sound travel faster in air then in any other
Light travels considerably faster.Sound travels at about 343 meters per second. Light travels at 299,792,458 meters per second.Light in vacuum travels about 876 thousand timesas fast as sound in air.If you meant to ask if light or sound travels faster then this is the answer:Light travels faster, with a speed of 300,000,000 m/s (which is equal to 300,000 km/s, or 186,282 miles per second). Sound, on the other hand, travels at a speed of 340 m/s (which is equal to 1126 ft/s).
Electromagnetic radiation travels at a speed that's not only faster than any other wave,but is also the "universal speed limit", faster than which nothing can move.
I believe that sound travels faster through iron because it bounces off the sides, and causes it to travel faster, reaching the other side.
Sound travels faster in water than in air because water is denser and more rigid, allowing sound waves to travel more efficiently. However, sound travels even faster in solids like steel due to their high density and rigidity.