Technician a says that manufacturers have dealt with caliper brake piston corrosion by making pistons out of a phenolic resin. technician b says that even though the phenolic pistons themselves do not corrode, the cast iron bore of the caliper does corrode and rust, and can therefore cause a phenolic piston to seize in the bore. who is correct?

How does the economy of cuba differ from the economy of north korea? in north korea, the government’s control of the economy has begun to loosen. in cuba, the government maintains a tight hold over the economy. in cuba, the government’s control of the economy has begun to loosen. in north korea, the government maintains a tight hold over the economy. in north korea, there is economic uncertainty in exchange for individual choice. in cuba, there is economic security in exchange for government control. in cuba, there is economic uncertainty in exchange for individual choice. in north korea, there is economic security in exchange for government control.\

Bakery has bought 250 pounds of muffin dough. they want to make waffles or muffins in half-dozen packs out of it. half a dozen of muffins requires 1 lb of dough and a pack of waffles uses 3/4 lb of dough. it take bakers 6 minutes to make a half-dozen of waffles and 3 minutes to make a half-dozen of muffins. their profit will be $1.50 on each pack of waffles and $2.00 on each pack of muffins. how many of each should they make to maximize profit, if they have just 20 hours to do everything?

Present values. the 2-year discount factor is .92. what is the present value of $1 to be received in year 2? what is the present value of $2,000? (lo5-2)