Answer:
Power = 1200 [W].
Explanation:
The efficiency of an electrical equipment is defined as the relationship between the power realized, over the power that is consumed. For this case, they give us the data of consumed power and efficiency in this way we can calculate the power that the equipment performs.
![Efficency=\frac{Power_{done}}{P_{consumed}}\\0.8 = \frac{Power_{done}}{1500} \\Power_{done}=1500*0.8\\Power_{done} = 1200 [W]](https://tex.z-dn.net/?f=Efficency%3D%5Cfrac%7BPower_%7Bdone%7D%7D%7BP_%7Bconsumed%7D%7D%5C%5C0.8%20%3D%20%5Cfrac%7BPower_%7Bdone%7D%7D%7B1500%7D%20%20%5C%5CPower_%7Bdone%7D%3D1500%2A0.8%5C%5CPower_%7Bdone%7D%20%3D%201200%20%5BW%5D)
This means that of the 1500 [W], 1200 [W] are actually used to get the job done. This is established by means of the first law of thermodynamics.
The ice cube which was solid has turned into the liquid water because the air temperature is warmer than the freezers. ... Therefore the ice particles have enough energy to break apart (melt)into smaller particle arrangements.
Answer:
4 cm/s
Explanation:
Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed (and speed in general) can be represented by the equation:
Speed = Distance/Time
I'd go with electricity source. Good luck!!