After taking off from John F. Kennedy airport, an airplane travels 500 kilometers due north and then 700 kilometers west. What is its total displacement?

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes