Milwaukee is 121 mi (air miles) due west of grand rapids. maria drives 255 mi in 4.75 h from grand rapids to milwaukee around lake michigan. find
a. her average driving speed
b. her average travel velocity.

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?