Adding energy (heating) atoms and molecules increased in motion resulting in an increase in temperature. The answer is Kinetic Energy
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Friction is a nonconservative force. Therefore work done against friction cannot be stored as potential energy and later converted back to kinetic the way work against gravity can.
Gravity always pulls objects such as a desk, book or person down. Thus, when you jump, gravity causes you to land on the ground. Friction, however, doesn't pull objects down. ... Instead friction occurs when something like a machine or individual pulls a sliding object in the opposite direction of another object.
Friction and gravity exist in every aspect of a person’s life. For example, almost every movement you make, such as walking and running, involves friction. When you throw a ball up, gravity causes the ball to fall down. A person sliding a book across a table creates friction. Nevertheless, differences between gravity and friction also exist. Force affects gravity and friction in different ways.
Y = v0t + 1/2gt^2.
v0 is 0 as it is at rest initially. So now we have y=1/2gt^2 so 60=1/2(9.8)t^2 and we must solve for t. t= about 3.5 seconds. Since the acceleration is 9.8 m/s^2 we do 9.8 m/s^2 times 3.5 seconds to get 34.3 m/s.
Explanation:
The mixing chamber will be well insulated when steady operating conditions exist such that there will be negligible heat loss to the surroundings. Therefore, changes in the kinetic and potential energies of the fluid streams will be negligible and there are constant fluid properties with no work interactions.
at 250 kPa = 
approx equal to 
at 
= 335.02 kJ/kg
≈ at 
= 83.915 kJ/kg
and, 
≈ at 
= 175.90 kJ/kg
Therefore, mass balance will be calculated as follows.
And, energy balance will be given as follows.
As we are stating steady conditions,
and 
cancel out to zero.
So, 
On combining the relations, we solve for 
as follows.
= 
= 0.865 kg/s
= 51.9 kg/min (as 1 min = 60 sec)
Thus, we can conclude that the mass flow rate of cold stream is 51.9 kg/min.
