A lightbulb illuminates a surface distance of 1.00 meters away with an illuminance of 1800 lux. What would be the illuminance on a surface 0.50 meters away if illuminated by the same bulb?

Which two particles are found in the center of an atom

Which of the following list the divisions of the geologic time scale in order from longest to shortest

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.