HELP! While drilling metal, Ben poured oil over the area. Which best explains why he did this?

Ben was trying to reduce fluid friction.

Ben was trying to reduce kinetic friction.

Ben was trying to increase fluid friction.

Ben was trying to increase kinetic friction.

Alarge tank is filled to capacity with 500 gallons of pure water. brine containing 2 pounds of salt per gallon is pumped into the tank at a rate of 5 gal/min. the well-mixed solution is pumped out at the same rate. find the number a(t) of pounds of salt in the tank at time t.

You are the cfo of a u.s. firm whose wholly owned subsidiary in mexico manufactures component parts for your u.s. assembly operations. the subsidiary has been financed by bank borrowings in the united states. one of your analysts told you that the mexican peso is expected to depreciate by 30 percent against the dollar on the foreign exchange markets over the next year. what actions, if any, should you take

What does the term "smalling up" mean, according to white? what ways have you or people you know had to "small up"? if you haven't, what ways could you?