A freelance electrician can purchase an equipment for $ 320,000 and use for 10 years, when its
salvage value is $50,000.
Alternatively, it can be leased for $40,000 a year. The lease payments occur every year with an
interest rate of 7%.
a. What is the interest rate for purchasing versus leasing? Which is better?
b. $65,000 each year will be spent on maintenance
that is currently spent on the purchasing power. Should he obtain the equipment ? What
is the rate of return for the equipment
using the best financing plan?

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.