Which of these statements about airplane and
rocket flight is true?

O A. Only one must overcome the force of
gravity.
O B. Only one requires both fuel and an
oxidizer for the combustion reaction.
O C. Only one requires combustion reactions
to generate thrust.
O D. Only one requires air molecules to
generate lift.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?