have you ever tried swimming at the base of a waterfall do you think there will be any temperature difference between the water at the top of the waterfall and the water at the base what are the energy conversion that take place when the waterfalls from the top to the base has any work been done
Answers
Explanation:
The water gains kinetic energy as it falls down and loses its potential energy. Assuming no other losses, part of the kinetic energy gain of water is converted into heat , raising the temperature of water.
Water is slightly warmer at the bottom of a waterfall than at the top because the gravitational potential energy is converted first to kinetic energy of the falling water, and finally to heat energy as it comes to rest at the bottom. Suppose a waterfall is located on a planet where the gravitational acceleration is g=6 m/s2. Compute the height of the waterfall if the water temperature is 0.213 C warmer at the bottom than the top. Gravitational potential energy is given by mgh, where m is the mass of a given amount of water, and h is the height of the water. The heat capacity of water is 4184 J/kg/K.
Gravitational potential energy = mass x gravitational force x height (E = mgh),
And assuming that this is a conservative system where there is no energy loss
Loss of gravitational potential energy = gain in molecular kinetic energy of water
Temperature is a measure of kinetic energy of the molecules in a body
mgh = mass x specific heat capacity x change in temperature
You can see from the above equation that there will be a temperature difference
Answer:
The water gains kinetic energy as it falls down and loses its potential energy. Assuming no other losses, part of the kinetic energy gain of water is converted into heat , raising the temperature of water.
Water is slightly warmer at the bottom of a waterfall than at the top because the gravitational potential energy is converted first to kinetic energy of the falling water, and finally to heat energy as it comes to rest at the bottom. Suppose a waterfall is located on a planet where the gravitational acceleration is g=6 m/s2. Compute the height of the waterfall if the water temperature is 0.213 C warmer at the bottom than the top. Gravitational potential energy is given by mgh, where m is the mass of a given amount of water, and h is the height of the water. The heat capacity of water is 4184 J/kg/K.
Gravitational potential energy = mass x gravitational force x height (E = mgh),
And assuming that this is a conservative system where there is no energy loss
Loss of gravitational potential energy = gain in molecular kinetic energy of water
Temperature is a measure of kinetic energy of the molecules in a body
mgh = mass x specific heat capacity x change in temperature
You can see from the above equation that there will be a temperature difference
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