What is the angular momentum of the moon about the earth? the mass of the moon is 7.35 x 10^22 kg, the center-to-center separation of the earth and the moon is 3.84 x 10^5 km, and the orbital period of the moon is 27.3 days. ignore the small offset of the center of mass of the system from the center of the earth in your calculation.

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.