The blue star is the hottest star.
Fun Fact: The coldest stars are red
Answer:
6.39×10^23 kg is the weight on mass
Answer:
The heat exchanger is 29.26 kJ/s.
The exit temperature of geothermal water is 117.37°C.
Explanation:
Given that,
Specific heat 
Initial temperature = 25°C
Final temperature = 60°C
Specific heat by geothermal 
Temperature = 140°C
Mass flow rate = 0.3 kg/s
We need to calculate the rate of heat transfer in heat exchange
Using formula of rate of heat transfer in heat exchanger

Put the value into the formula


We need to calculate the exit temperature of geothermal water
Heat transferred to feed water= Heat transferred by geothermal water



Hence, The rate of heat exchanger is 29.26 kJ/s.
The exit temperature of geothermal water is 117.37°C.
Answer:
A perfectly elastic collision conserves momentum and kinetic energy..
First shell hold up to 2 electrons.