4.5 points Calculate the electric power of an electrical appliance in which 10 A of current is flowing through a resistor of 2 ohms.
O 80 W
0 2.5 A
O 200 W
0 22.5 KJ

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic