Which statement is not true about mass movements?
a. gravity is the driving force behind all mass movements.
b. mass movements always create landslides.
c. some mass movements are too slow to be seen.
d. mass movements are always downslope.

What causes the formation of ocean currents?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

Whithin which type of system is neither the total mass nor the total energy conserved ? a. open b. connected c. isolated d. closed