Archie is flying a kite. As the wind blows, the kite changes speed and direction. Why does this happen? A) The forces acting on the kite are unbalanced.
B)There are no forces acting on the kite.
C) There are too many forces acting on the kite.
D) The forces acting on the kite are balanced.

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

The slope of a velocity time graph over any interval of time gives the during that interval