Answer: 67.392s
Explanation: detailed calculation is shown below
Answer:
Consumers not having a can opener readily available
Explanation:
More people will be likely to buy a product that is easy to use. For example, yogurt cups have pull tabs in order to open the yogurt without leaving any cover attached. Ease of use is one of the key main design constraints when designing consumer goods.
Answer: laboratories, factories, offices
Explanation:
The expression for coefficient of heat performance is; K = H/P
We are given the expressions;
Coefficient of performance = K
Rate of heat removal = H
Power consumption = P
Formula for coefficient of performance is usually;
K = Q/W
However, the rate of heat removal H can be further expressed as;
H = Q/T
Where;
Q is heat removed
T is time
Similarly, for power consumption, it can also be expressed as;
P = W/T
Where;
W is workdone
T is time taken
Thus, Q = HT and W = PT
Finally;
K = HT/PT
K = H/P
Read more about coefficient of performance at; brainly.com/question/13756267
Answer:
16.02kW and 12.91kW
Explanation:
Knowing the enthalpy data, we have to
So,
Here,
m=mass flow rate
h= Enthalpy of refrigerant at the compressor
Replacing
The rate of energy transfer by mass into the compressor is 12.91kW
In the other hand we have,
Replacing
The rate of energy transfer by mass out of the compressor is 16.02 kW