Question
How much time a train 110 metres long running at the
speed of 54 km/hr take to cross a bridge 160 metres in length?Solution
Distance (Length of the train + length of the bridge) = 110 + 160 = 270 Speed of Train = 54 km/hr = 54×5/18 = 15m/sec. Time = Distance/Speed = 270/15 = 18sec.
Which of the following is an example of symbiosis?
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CH₃COOH + CH₃OH → (H⁺, heat)
In a nuclear reactor, one of the following is used as a fuel.
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