What is the vertical acceleration of a paper airplane that is launched horizontally with an initial velocity of 2.3 m/s?

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?

Which planet do you think would be easiest for humans to colonize some day?

Smallest intensity of a stimulus that you can detect 50 percent of the time is