A hiker walks 10.39m, N and 13.06 m, E. What is the magnitude of his resultant displacement.

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

d) physical means can be used to separate the components of air.

there are no atoms