A bowling ball strikes a group of bowling pins at the end of a bowling lane. The total momentum of the bowling pins can only be zero if: a. The bowling pins are moving in the same direction b. The bowling pins are moving in different directions c. Some of the bowling pins are moving and some are at rest d. Some of the bowling pins are moving fast and some are moving slow

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.