Which statement is true about air at different temperatures? hot air is denser than cool air. cool air contains lighter particles than hot air. particles in hot air move faster than particles in cool air. cool air contains more particles than warm air.

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.