Answer:
The correct answer is: 0°C + 0°C = 32°F
Explanation:
We need to remember the conversion equation from Celsius to Fahrenheit:

In our case x = 0, then y will be:


Now 0°C + 0°C is just 0°C because if we add a body at a certain temperature to another body with the same temperature the total temperature will the same.
Then, knowing that 0°C = 32°F we can conclude that:

I hope it helps you!
Answer:
Explanation:
Given
saturated air temperature by 
Dew point temperature is given by 
Dew point is defined as the temperature after which air no longer to uphold the water vapor fuse with it and some water vapor may condense to a liquid.
air continues to rise for 1400 m
i.e. change in temperature would be 
Final temperature 


Answer:
The magnitude of the gravitational force which the astronaut experience in satellite
Newton
Explanation:
As we know
Gravitational force F = 
Where G is the gravitational constant 
M is the mass of earth 
m is not given
r is the radius of earth 
Substituting the given values, we get -

Kg
Gravitational force in the satellite
N