Determine an expression for the position vector of a particle that starts on the positive y axis at t=0 (i. e., at t=0, (x0,y0)=(0,r)) and subsequently moves with constant ω. express your answer in terms of r, ω, t, and unit vectors i^ and j^.

Which property of fossils allow scientists to determine the relative rock ages..

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final