Question

How much energy will a stock tank heater rated at 1790 Watts use in a 24 hour period? 1. 1790 × 24 × 3600 Joules 2. 1790 × 24 × 60 Joules 3. 1790 Joules

Answer 1

The stock tank heater rated at 1790 Watts will use 154,224,000 Joules of energy in a 24-hour period. The correct formula to use for calculating this is the power in Watts multiplied by the number of hours and then by the number of seconds in an hour. Therefore, the correct answer is 1790 × 24 × 3600 Joules.

Step-by-step explanation:

The student has asked how much energy a stock tank heater rated at 1790 Watts will use in a 24-hour period. To calculate the energy used by an appliance in Joules, you multiply its power in Watts by the number of seconds it runs. Since there are 3600 seconds in an hour, the correct formula to use for a 24 hour period is 1790 Watts × 24 hours × 3600 seconds.

Thus, the energy consumption of the stock tank heater in a 24-hour period is:

1790 W × 24 h × 3600 s/h = 154,224,000 J

So the correct answer from the options given is number 1: 1790 × 24 × 3600 Joules.

Answer 2

Option 1 is the correct answer.

Step-by-step explanation:

Power of heater, P = 1790 W

Time used, t = 24 hours = 24 x 60 x 60 = 24 x 3600 s

We have the equation

`\texttt{Power}=\frac{\texttt{Energy}}{\texttt{Time}}`

We need to find energy,

Substituting

`\texttt{Power}=\frac{\texttt{Energy}}{\texttt{Time}}\\\\1790=\frac{\texttt{Energy}}{24* 3600}`

Energy = 1790 x 24 x 3600 J

Option 1 is the correct answer.