A circuit breaker is tripped when the
current in the circuit is greater than 15 A. If the voltage difference is
120 V, what is the power and used when the circuit breaker
is tripped?

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )