16. If you walk 3 kilometers in 30 minutes, what is your average speed in kilometers per hour?

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?

What properties of a moving object are used in determining the object's energy of motion