Calculate the cost of the energy consumed by a toaster that uses 1,000 watts for 10 hours. The cost of each kilowatt hour is $0.12

In a system, when potential energy decreases, then entropy also decreases. true false

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?