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------------------------------------------------ You place an ice cube in a microwave oven. If it requires 32,200 J to melt the ice cube and the oven delivers 91 W of power to the ice cube, determine the time (in minutes) needed to melt the ice cube.

To melt the ice cube, it would take approximately 5.91 minutes in the microwave oven, given that it requires 32,200 J to melt the ice cube and the oven delivers 91 W of power.

To determine the time needed to melt the ice cube, we can use the formula: Time = Energy / Power.

Given that it requires 32,200 J to melt the ice cube and the oven delivers 91 W of power, we can plug these values into the formula.

Time = 32,200 J / 91 W

To simplify the calculation, we need to convert the power to joules per second (J/s), since the unit of energy is in joules (J).

1 watt (W) = 1 joule per second (J/s)

Therefore, the power delivered by the oven is 91 J/s.

Now we can substitute the values into the formula:

Time = 32,200 J / 91 J/s

Simplifying this equation gives us:

Time = 354.9 s

Since the question asks for the time in minutes, we can convert seconds to minutes by dividing by 60:

Time = 354.9 s / 60 s/min

Time = 5.91 min (rounded to two decimal places)

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