Acentrifuge is used to test space pilots. the centrifuge spins with a centripetal acceleration of 6.54 g. if the length of the centrifuge's arm is 15 m, what is the speed of the centrifuge?

Avector a⃗ has a length of 8.6 m and points in the negative x direction. find the x component of the vector −3.7a⃗ .

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.

Match the lithification processes. 1. contact pressure causing grains to "grow" together 2. increase in density due to weight of overburden 3. precipitation of bonding agents between grains a. recrystallization b. cementation c. compaction