If the allowable shear stress in the drill bit is 32 MPa, what is the maximum resisting torque before the drill binds up

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above