Asolar system is composed of a star and a planet that goes around the star in a circunference. the planet spins around itself with the axis of this rotation perpendicular to the plane of its orbit around the star. i need to find the position of the star with respect to a reference frame attached to the surface of the planet, asumming that: 1) the distance between the planet and the star is far greater than the radius of the planet; 2) the radius of the planet is significant.

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.