Question

A student uses 800 W microwave for 30 seconds how much energy does a student use

Answer 1

`\Large\bold{SOLUTION}`

To calculate the energy used by the student in this scenario, we can use the formula:

`\sf{Energy\: (in\: Joules) = Power\: (in\: Watts) * Time\: (in\: seconds)}`

Given that the student uses an 800 W microwave for 30 seconds, we can plug in these values to the formula:

`\sf Energy = 800\: W * 30\: s = 24,000\: J`

Therefore, the student uses 24,000 Joules of energy in this scenario.

`\rule{200pt}{5pt}`

Answer 2

The student used 24000 Joules of energy.

Step-by-step explanation:

We can use the Energy Power equation to solve this example.

`\sf E=Pt`

Where

`\sf E` is the energy in Joules (J)

`\sf P` is the power in Watts (W)

`\sf t` is the time in seconds (s)

Numerical Evaluation

In this example we are given

`\sf P=800\\t=30`

Substituting our given values into the equation yields

`\sf E=800 \cdot 30`

`\sf E=24000`

24000 Joules