Ablock of mass m = 0.600 kg is pressed against a horizontal spring of elastic constant k = 20 n/m, compressing it by 20.0 cm. the block is then released. once it loses contact with the spring, the block travels a distance 33 cm on a rough horizontal surface before it comes to a stop. what is the coefficient of kinetic friction between the block and the surface?

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.

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good