You and a friend sit still on a spinning merry-go-round. the merry-go-round spins 5 times every second, and to a stationary observer, you have a speed of 9 m/s. from your frame of reference, what is the speed of your friend?

Apassenger walks toward the rear of a moving train. describe her motion as seen from a reference point on the train. then describe it from a reference point on the ground

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

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