Physics Homework Help?

Question

Part A How much energy is required to bring a 1.8-L pot of water at 25 ∘C to 100∘C? The specific heat of water is 4186 J/kg⋅C∘

Part B For how long could this amount of energy run a 60-W lightbulb?

Answer 1

Part A:

The pot contains of water.

The specific heat of water is .

The temperature rises from to .

The heat absorbed is .

.

The energy required to bring water is .

Answer 2

Part B:

From part A: The energy required to bring water is .

The amount of power is .

Find the time required to run a lightbulb.

.

.

The time required to run a bulb is .