2. A 60 W filament lamp is powered by the 240 V mains electricity supply. The lamp is switched on.
(a) Calculate:
(1) the current in the lamp
current =
[2]
(ii) the resistance of the lamp.
resistance =
[2]

What is the scientific definition of energy that relates to work

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.