Question

what is the power of a kitchen blender if it can perform 3750 joules of work in 15 seconds?

Answer 1

Answer:

The power of the kitchen blender is 250Js

Explanation:

Let's use the following formula:

P=WT

P stands for power and it is measured in Watts (W) or (J/s)W stands for work and it is measured in Joules (J)T stands for time and it is measured in seconds (s)

We know the work that was done as well as the time, both of which have the correct units. All we do now is plug in the given values for W and T and solve for P like this:

P=3750J15s

P=250Js

Answer 2

The power of the kitchen blender is 250J/s.

What is power?

• Power is the rate of doing work or the rate of transfer of energy.
• If W is the amount of work done in time t, then power is given by the expression, Power = work / time

                               P = W/T

         where, P = power and it is measured in Watts (W) or (J/s)

                      W = work and it is measured in Joules (J)

                      T = time and it is measured in seconds (s)

• Power is expressed in watt (W).

Using the following formula:

P = W/T

where, P = power and it is measured in Watts (W) or (J/s)

           W = work and it is measured in Joules (J)

           T = time and it is measured in seconds (s)

We know the work that was done as well as the time,

W = 3750 joules

T = 15 seconds

substitute the given values of W and T,

P = W/T

  = 3750J/15s

  = 250J/s

Hence, the power of the kitchen blender is 250J/s.

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