Rachel rides her bike east for 3.0 miles. she then turns around and rides west for 4.8 miles. what is her displacement? 7.8 miles 1.8 miles 1.8 miles, east 1.8 miles, west

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

What does the law of conservation of mass state?