Answer:
Explanation:
From the given information:
Water freezing temp. 
Heat rejected temp 
Recall that:
The coefficient of performance is:

Again:
The efficiency given by COP can be represented by:

Finally; the power input in an hour can be determined by using the formula:

In hp; since 1 kW = 1.34102 hp
6.86kW will be = (6.86 × 1.34102) hp 
= 9.199 hp
 
        
             
        
        
        
load every electric circuit,regardless of where it is or how large or small, has four basic parts: an energy source (ac or dc),a conductor (wire), an electrical load (device), and at least one controller(switch)
        
                    
             
        
        
        
Answer:
Your question lacks the time required hence i will calculate the Average flow rate using a general concept and an assumed time value of 25 seconds  
ANSWER : 104.904 ft^3/sec
Explanation:
General concept : Average flow rate is the volume of fluid per unit time through an area 
Hence the average flow rate of the air conditioning unit of this room 
Volume of the room / time taken for the air to cycle the room = v / t
assuming the time taken = 25 seconds 
volume of room = width * length * height 
                           = 14.1 * 15.5 * 12 = 2622.6 ft^3
Average flow rate = V/ t 
                               = 2622.6 / 25  = 104.904 ft^3/sec
 
        
             
        
        
        
search it and you will get on internet 
 
        
             
        
        
        
Answer:

Explanation:
given data:
pressure 1 MPa
diameter of pipe  =  30 cm
average velocity = 10 m/s
area of pipe
                  
A = 0.070 m2
WE KNOW THAT mass flow rate is given as

for pressure 1 MPa, the density of steam is = 4.068 kg/m3
therefore we have 

