The force of gravity on the Moon is 1.6 m/s2 and on Mars it is 3.7 m/s2. How does the weight of an astronaut on the Moon compare to that of an astronaut on Earth or Mars? (1 point)
The astronaut weighs the most on Mars and the least on the Earth.
The astronaut weighs the most on Earth and the least on Mars.
The astronaut weighs the most on the Moon and the least on Mars.
The astronaut weighs the most on Earth and the least on the Moon.

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.