An engine requires 5 s to go from its idling speed of 600 rev/min to 1200 rev/min. (a) What is its angular acceleration? (b) what is the angle through which the engine turns within this time interval? (c) How many revolutions does it make in this period? ​

Pl i beg u so much now propane burns in oxygen to produce carbon dioxide and steam. the unbalanced equation for this reaction is: c3h8 + o2 → co2 + h2o use coefficients to balance this equation. a) c3h8 + 3 o2 → 3 co2 + 4 h2o b) c3h8 + o2 → 3 co2 + 4 h2o c) c3h8 + 5 o2 → 3 co2 + 4 h2o d) 2 c3h8 + 5 o2 → 3 co2 + 4 h2o