4.v-i graphs for two wires a and b are shown in the figure. if we connect both the wiresone by one to the same battery which of the two will produce more heat per unit time? justify your answer

Select the correct answer. anna will wear a black dress when she attends het cousin's wedding. which color(s) does the dress absorb? a. all colors b. no colors c. red and green d. white

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

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) ! : )