A jogger runs 32 m [E] in 10.0 s and then 21 m [W] for 8.0 s. What is the jogger's average velocity? ​

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.

The index of refraction of the oil is 1.20. what is the minimum thickness t of the oil slick at that spot?

What happens to light when it strikes the inside surface of a smooth, curved mirror?