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A body having a mass of 46 kg rests on a horizontal planse for which the coefficiant of friction f = 0.4. A force P acts ofn the body at an angle of 20 degrees with the horizontal. Find its magnitude for impending motion.
to form a molecule with an octahedral electron geometry what set of pure atomic orbitals must be mixed?
water contained in a closed, rigid tank, initially saturated vapor at 200C, is cooled to 100C. determine the initial and final pressure, each in bar. locate the initial and final states on a sketches of the p-v and T-v digrams.
Determine a symbolic expression for the total thermal resistance of wall, including inside and outside convection effects for prescribed conditions.
titrated with 0.09381M NaOH, 27.63mL were required to reach the equivalence point. The pH at the equivalence point was 10.99. what was the pH when only 19.47mL of NaOH had been added?
Consider the following interaction between two entrepreneurs (players 1 and 2) who are working on a joint project, and a venture capitalist (player 3) who is a potential investor in the project. First, player 1 decides whether to devote high or lo..
(a) Determine the surface temperatures on the two sides of the circuit board.
Draw the skeletal structure of the product if the following alcohol were treated with HF in pyridine. Atoms other than carbon and hydrogen are labeled
Find the turbine's (b) isentropic efficiency (%), (c) reversible work (kJ/kg), (d) irreversibility(kJ/kg), and (e) exergy destruction (kJ/kg). (f) Draw a T-s diagram of the process
Use the classical model and the quantity theory of money to predict how each of the following shocks would affect the real wage rate (W/P), the real interest rate (r), real aggregate income (Y), and the price of goods and services (P) in a closed ..
A refrigerator with a COP of 3 removes 1.5 kW from the cold space at -9 °C while rejecting heat to the kitchen at 22 °C.
Determine the molecular weight of a poly(ethylene-propylene) with a degree of polymerization of 25,000 given that 20% of the mers (by number) are ethylene and 80% are propylenel.
A mixture of dry air and water vapor is at a temperature of 21C under a pressure of 101.3 kPa.The dew point temperature is 15C.(Ps= saturation pressure at 15C=1.7044 kPa;Pd=saturation pressure at 21C=2.4861 kPa) find humidity ratio and relative hu..
A circular shaft is subjected to a torque Ta and a bending moment Ma. Assuming that the diameter of the shaft is d, determine the expressions for the principal stresses and maximum shear stress in terms of Ma, Ta and d.
(a) derive an expression for the net work transfer for the cycle. Prove that for a Stirling Cycle, the net work transfer is always from the system to the surroundings.
determine the force exerted by each cylinder in raising the crate for u = 60°, a 5 0.70 m, and L = 3.20 m. Show that the result obtained is independent of the distance d.
calculate the largest semicircular surface flaw oriented along the axis of the bores that could withstand a fluid pressure of 50MPa.
Problem Statement Consider the landing gear shown below. Working in teprns of two, come up with a single optimized design for given operational conditions and design considerations
Determine the mode shapes and frequencies of vibration of the system of cars by Sweeping the rigid body mode
Refrigerant R-134a vapor in a piston-cylinder assembly undergoes a constant-pressure process from saturated vapor at 800 kPa to 50 ºC.
Calculate the steady state excess electron and hole concentrations as a function of distance into the semiconductor.
Calculating the mechanical properties of unidirectionally reinforced composites
Determine the power of the pump. The efficiency of the pump is 65%.
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