Awnser soon water's state of matters include stream, liquid water, and ice. what about water is the same in these states? what can you conclude about what changes and what does not change during a change of state?

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.

The energy equivalent of the rest mass of an electron is

Name two kinds of practical electric pumps.