Find the total present worth of a series of cash flows with an annual interest rate of 2% per year. Round your answer to the nearest cent. Initial benefit of 5,330 at year 0

Benefit of 13,075 at year 3

Salvage value of 2,308 at year 4

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.