a roller derby exhibition recently came to town. they packed the gym for two
consecutive weekend nights at south's field house. on saturday evening, the
68-kg anna mosity was moving at 17 m/s when she collided with 76-kg sandra
day o'klobber who was moving forward at 12 m/s and directly in anna's path.
anna jumped onto sandra's back and the two continued moving together at
the same speed. determine their speed immediately after the collision.

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.

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?