David rides his horse with a constant speed of 20 km/h. How far can he travel in
60 minutes?

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

The movement of electrons between atoms is called an

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.