What material would make the best light bulb filament?

a.
a resistor, which converts some electric energy to thermal energy

b.
an insulator, which stops the flow of electricity

c.
a conductor, which carry electric currents

d.
a conductor surrounded by an insulator

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap

If forces acting on an object are unbalanced. true or false

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.