Atrilobite fossil weighing 0.059 n has an area of 0.0007 m2 that is in contact with a table. how much pressure does it exert on the table?

a)2.89 x 10-8 pa
b)4.13 x 10-5 pa
c)1.19 x 10-2 pa
d)84.3 pa

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.