Which boundary can pruduce earthquakes and which can produce the largest earthquake

An observation that requires measurement is called quantitative observable or qualitative

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

What are the constituent metals of stainless steel?