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Because market interest rates were near all-time lows at 4% per year, a hand tool company decided to call (i.e., pay off ) the high-interest bonds that it issued 3 years ago. If the interest rate on the bonds was 9% per year, how much does the company have to pay the bond holders? The face value (principal) of the bonds is $6,000,000.
During an expansion process, the pressure of a gas changes from 15 to 100 psia according to the relation P = aV + b, where a = 5 psia/ft3 and b is a constant. If the initial volume of the gas is 7 ft3, calculate the work done during the process.
Determine the convection heat loss from both the top and the bottom of a flat plate at Ts = 80°C with air in parallel flow at Too = 25°C, uoo = 3 m/s.
A rigid tank contains 8 kg of saturated vapor steam at 115 degrees c. The steam is cooled to the ambient temperature of 20 degrees c. (a) Sketch the process with respect to the saturation lines on a T-v diagram. (b) Determine the entropy change of th..
An ideal gas (MW = 26.0 lbm/lb·mol) undergoes a poly tropic process (with poly tropic index being 1.67) from an initial state of 6.9836 ft3/lbm and 60°F to a final volume of 0.86848 ft3/lbm. Show the process on a P-v diagram. Find the specific work o..
A slab of intrinsic GaAs, 3cm long, 2cm wide, and 0.3cm thick, is exposed to light. The light is absorbed with an absorption coefficient a=500cm-1 (this means that the light intensity decreases in the material exponentially with distance t, and is pr..
the unit cells of several orthorhombic crystals are described below. what is the bravais lattice of each and how do you
A steam turbine is operating at a steady state with a mass flow rate of 3682 kg/h at the inlet. The power output of the turbine is 8700 kW. Steam enters the turbine at a pressure of 40 bar, temperature of 320 oC, and with a velocity of 13 m/s. The ex..
A large tank of diameter D and open to the atmosphere is draining water through a nozzle of diameter d. where D >>d. The level will decrease slowly from an initial value z= h(0) (tanks initial fill height) down to z=0. At which time the flow will ..
a mechanic got a 4.2l 6-cylinder engine from a 1966 british sports car. it is known that the original compression ratio
the entropy generation during this process if heat is supplied to the tank from a source at 500°C.Copy and paste your question here...
Sketch the motor-pump circuit. Derive the dynamic equations for the system, and determine the transfer function between motor voltage and the pressure across the load.
A mixture of propane and butane is fed into a furnace where it is mixed with air. The furnace exhaust leaves the furnace at 343°C, 780.0 mmHg and contains only N2, O2, CO2, and H2O. The partial pressure of O2 in the exhaust is 51.40 mmHg and the part..
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