Answer:
12 seconds
Explanation:
In physics, power can be defined as a rate of energy transfer. In other words it shows how much energy was transtered over a period of time.
There is a simple equation that connects all of this:
P = E/t,
P is power
E is energy
t is time
Here, we are given power of a blender of P = 400 W, and total energy transfer of E = 4800 J. So:
400W = 4800J / t
t = 4800/400
t = 12s
