Looking at this skier. if ht travels from point a to point b, then turns around and stops at point c, what is her total displacement? a: 180 m b: 320 m c: 100 m d: 40 m

The heliocentric and the geocentric models of the solar system included these central principles

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?