The stream of water flows over the dam with a height of 30 m, the water flow rate is 150 kg / s. The flow power is

The work of water is carried out due to a decrease in its kinetic energy to zero. The kinetic energy of water at the base of the dam is equal to its potential energy at the top of the dam. A mass of water m = 150 kg / s passes through the dam in its upper part per second. Its potential energy is mgh. This is the power of the stream R.
p = mgh = 150 kg / s • 10 m / s2 * 30 m = 45,000 W = 45 kW.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.