A 60-cm-long heating wire is connected to a 120 v outlet. the wire the total charge a household battery can supply is given in units of ma⋅h. for example, a 9.0 v alkaline battery is rated 450 ma⋅h, meaning that such a battery could supply a 1 ma current for 450 h, a 2 ma current for 225 h, etc. e dissipates 45 w.

Complete part of Question:

How much energy in Joules is this battery capable of supplying?

Energy = 14,580 J

Explanation:

NOTE: The question later focuses on the energy the battery can supply and not the 120 V outlet.

The energy the battery is capable of supplying is given by the equation:

Energy, E = IVt

The voltage of the battery, V = 9.0 V

The battery is rated 450 mAh = 0.45 Ah

That is, It = 0.45 Ah = 0.45*3600 = 1620 A-sec

Q = It = 1620 As

Energy = 1620 * 9

E = 14,580 J

answer: b.

explanation:

this could be newton#'s law of cooling. the cooling curve is exponential