Acar travels straight for 20 miles on a road that is 30° north of east. what is the east component of the car’s displacement to the nearest tenth of a mile?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%