7. What must you do before you make a hypothesis?

Which best explains why an iceberg floats?

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Aroller coaster is traveling at 13 mi./s when you purchase a hill that is 400 m long and down the hill exonerate at 4.0 m/s squared what is the final velocity of the posterior found your answer to the nearest number