How much energy has been used in joules

Reference no: EM13692015

Compute each part of given question:

Question: You leave a 80W light bulb on for 8 hours in the day.

Part I: Express energy through power P and time interval ?t.

Part II: How much energy has been used in joules?

Part III: If the energy used were used to lift a weight of m = 145 kg, write an equation of the height h that the weight can be lifted in terms of P, ?t, and m?

Part IV: Calculate the numerical value of h.

Show all work, use additional paper if necessary.

Reference no: EM13692015

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