How do electric field lines indicate the strength of the field? A. by how long the lines are B. by how close the lines are C. by the direction the lines are pointing D. by showing the charge that creates the lines

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 amount of potential energy possessed by an elevated object is equal to what?

What happens when you slowly pulled the carboard?