The consumption of coal by a locomotive varies as the square of the speed. When the speed is 26 km/hr the consumption of coal per hour is 3 tonnes. If the price of coal be Rs 13520 per tonne and the other expenses of an engine be Rs 60 per hour, find the cost of a journey of 100 km at the speed 25 km/hr.
Answer:
The acronym CHNOPS, which stands for carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur, represents the six most important chemical elements whose covalent combinations make up most biological molecules on Earth.