A model rocket is launched from the ground. It starts from rest and accelerates upward at 15.0 m/s² for 3.00s. Disregard gravity. What is the V₂? b. Then, it has a downward acceleration of -10.0 m/s² until it reaches its highest point. What is the highest above the ground that the rocket gets?

c. What is the TOTAL time in the air?

The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (c3h8) to burn it completely. for every gram of propane that flows through the burner, what volume of air is needed to burn it completely? assume that the temperature of the burner is 195.0°c, the pressure is 1.05 atm, and the mole fraction of o2 in air is 0.210.