Doors of a dam are 20m below the surface of water in the dam. If one door is opened what will be the speed of the water that flows out of the door ?
The given can be listed as, h= 20m g = 9.8m/s² To find, v = ? Solution -��…
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X-rays - its production, properties and its uses
X-rays are a part of the electromagnetic spectrum, hence they are nothing but a type o…
A cyclist moved at a speed of xkm/hr for 2 hours. He then increased his speed by 2 km/hr for the next 3 hours. If the total distance covered is 36km, what is his initial speed,?
The distance covered in 2hr with the speed of x km/hr is, = 2x km now the speed is …
Two trains are traveling in the same directions.The first one leaves at 8 AM with a speed of 40km/hr & the second leaves at 11 AM with a speed of 60 km/hr. At what time will the second train catch the first train?
Train 1 Speed - 40km/hr Leaves at 8 AM Train 2 Speed - 60km/hr Leaves at 11 AM Till …
Define progressive wave and what are the characteristics of progressive waves
A wave in which the disturbance produced in the medium travels in a given …
State the conditions for constructive & destructive interference of light
(1) Constructive interference (brightness): There is constructive interfer…