Answer:

Explanation:
Temperature of the house, 
Convert to rankine, 
Heat is extracted at 40°F i.e 
Calculate the coefficient of performance of the heat pump, COP

The minimum power required to run the heat pump is given by the formula:
 ...............(*)
...............(*)
Where the heat losses from the house, 
Substituting these values into * above

 
        
             
        
        
        
The initial is where you are starting and the final postion is where the object ends up
        
             
        
        
        
Answer:
C. The block and the sphere would have the same weight. 
Explanation:
If both the block and the sphere weigh 7 kilograms then they have the same weight. They may look different, but they both weigh 7 kilograms.
 
        
                    
             
        
        
        
Answer:
Hey
Your answer would be 
The moon is not visible
due to Earth's shadow=lunar eclipse
The sun is not visible due
to the moon=solar eclipse
The moon is on the side of
Earth opposite the sun=new moon
The moon and sun are on
the same side of Earth=full mon