Question

A blender uses 1,500 joules of energy in 5 seconds. What is the power rating of the blender? 7,500 W 300 W 7.5 W 0.03 W

Answer 1

P=W/t

P=1500J/5s

P=300W

Answer 2

The power rating of the blender is 300 W

Step-by-step explanation:

Power is defined as how quickly a job is done. That is, power is the amount of work done per unit time:

`P=(work)/(time)`

P is the power developed by the work force and its unit of measurement in the International System is the Watt or Watts (W). The unit of measure of work in the International System is Joules (J). The time during which the work is carried out has the unit of measurement in the International System of seconds (s).

In this case, you know:

• work: 1,500 J
• time: 5 s

Then:

`P=(1,500 J)/(5 s)`

P= 300 W