Answer:
B. 180 million joules
Explanation:
Apply the formula for heat transfer given as;
Q=m*c*Δt where
Q = electrical energy consumed by the heater in joules
m= mass of air in the chamber in kg
c= specific heat of air in joules per kg degrees Celsius
Δt= change in temperatures in degrees Celsius
Given in the question;
m= 1200 kg
c= 1000 J/°C /kg
Δt = 180°-30°= 150° C
Substitute values in the equation to get Q as;
Q=m*c*Δt
Q= 1200 * 1000* 150
Q= 180000000 joules
Q = 180 million joules
<u>The correct answer option is B : 180 million joules.</u>
Answer:
An isolation transformer whose main purpose is to reduce voltage spikes will have a turns ratio of 1 to 1.
This is due to the windings input and output having the same waveform and amplitude.
Answer:
Explanation:
The acceleration field is obtained by deriving the components in function of the time. That is to say:
Where 
and 
.
The velocity components at given point are, respectively:
Lastly, the acceleration components are found:
Answer:
I don't know. It does the same thing to me to. I had to create a new account with my friends email because it won't let me log in
Explanation:
Answer:
The answer is computer cookies.
Explanation:
Smartness :D
