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Consider a pistoncylinder assembly containing 0.25 kg of air initially at 750 K and 200 kPa (state 1). The piston moves such that 20 kJ of work is done on the air by the surroundings. The process... Consider a pistoncylinder assembly containing 0.10 kg of air initially at 300 K and 300 kPa (state 1). The piston moves such that 35.9 kJ of work is done on the air by the surroundings. The process... The stepped rod shown in Figure P573 is subjected to a direct tensile force that varies from 8500 to 16 000 lb. If the rod is made from SAE 1340 OQT 700 steel, compute the resulting design factor.... The wheel is rotating with an angular velocity . Determine the velocity of the collar A for the given values of and . Given: 0 = 30 deg p = 60 deg @=8 rad S TA = 500 mm rB = 150 mm VB = 1.2 m S An axial electric field E = Ez and a radial magnetic field B = Bp coexist in the volume V between two short cylindrical shells concentric with the z-axis. Suppose V is filled with xenon gas and, at a... Let a steady current I flow up the y-axis and let the initial position and velocity of a particle with mass m and charge q be r 0 = (x 0, 0, 0) and v 0 = (0, 0 , 0).(a) Show that the motion of the... Two long, parallel wires of length L, separation d, and cross sectional radius a are connected by a U-turn at each end to form a closed circuit. Insert a battery with potential difference V at one... Two identical, current-carrying rectangular loops are oriented at right angles, one in the vertical x-y plane, one in the horizontal x-z plane. The horizontal loop moves infinitesimally slowly from z... Let (r) be an arbitrary scalar function. A magnetic field which satisfies B = B is called force-free because the Lorentz force density j(r) B(r) vanishes everywhere. There is some evidence that... The chemical diagnostic tool of nuclear magnetic resonance uses a static magnetic field B 0 = B 0 z and a small-amplitude radio-frequency magnetic field B 1 (t) to orient and manipulate nuclear spins... The diagram shows three small magnetic dipoles at the vertices of an equilateral triangle. Moments m B and m C point permanently along the internal angle bisectors. Moment m A is free to rotate in... A superconducting sphere (radius R) placed in a uniform magnetic field B spontaneously generates currents on its surface which produce a dipole magnetic field. The field is equivalent to that... The Levitron TM is a toy in which a spinning magnetic top floats stably in air above a magnetized base. The potential energy of this system is V B (r) = Mgz m B(r) if we model the top as a point... The floor of a light storage warehouse is made of 6-in.-thick cinder concrete. If the floor is a slab having a length of 10 ft and width of 8 ft, determine the resultant force caused by the dead load... A filamentary wire carries a current along the positive z-axis in the presence of a constant magnetic field B = B 0 x + B'z. (a) Find the straight line in space along which the magnitude of the total... (a) Use an energy method to determine how much current must be passed through the coil if it is to remain unstretched when a mass m is hung from its bottom end. Neglect stray fields at the ends of... Consider a collection of current loops where Using the notation of the text for variables that are to be held constant in partial derivatives, prove that the magnetic force exerted on the ith loop... A circular loop of radius R carries a current I 1 . A straight wire with a current I 2 in the plane of the loop passes a distance d from the loop center. (a) Use an energy method to show that the... A straight wire carries a current I 1 down the symmetry axis of a toroidal solenoid with a rectangular cross section of area ab. The solenoid has inner radius R and is composed of N turns of a wire... The figure shows two square, current-carrying loops with side length a and center-to-center separation c. The currents I 1 and I 2 circulate in the same direction. (a) Evaluate Neumanns integral and... (a) Show that the Helmholtz theorem representation of the magnetization M(r) is equivalent to the equation B M = 0 (H M + M). (b) The figure shows a thin film (infinite in the x and y directions)... A soaked sponge is experiencing dry air flowing over its surface. The air is at 1 atm and zero relative humidity. Determine the difference in the air temperature and the surface temperature of the... Ethyl alcohol is spilt and spread over a flat table into a layer of approximately 1 m in diameter wide. Dry air at 25C and 1 atm flows over the ethyl alcohol surface with a free stream velocity of 1... Steam at 5 bar, 300 C is condensed to saturated liquid in at 5 bar in a heat exchanger at a mass flow rate of 1 kg/s. Cooling is provided by water, which enters the heat exchanger at 20 C 1 bar and... The right leg of an athlete on a rowing machine can be modeled as a linkage as shown, where A represents the ankle (which is stationary), K the knee, and H the hip. At the instant when = 75, the... The decomposition of nitrous oxide is found to proceed as follows: What is the order of this reaction with respect to N,O, and overall? +21/20 NO N + k[NO] -N0 = 1+ k[NO] A 1100-K n-nonane thermally cracks (breaks down into smaller molecules) 20 times as rapidly as at 1000 K. Find the activation energy for this decomposition. Gear A has a mass of 1 kg and a radius of gyration of 30 mm; gear B has a mass of 4 kg and a radius of gyration of 75 mm; gear C has a mass of 9 kg and a radius of gyration of 100 mm. The system is... The pyrolysis of ethane proceeds with an activation energy of about 300 kJ/mol. How much faster is the decomposition at 650C than at 500C? A certain reaction has a rate given by If the concentration is to be expressed in mollliter and time in hours, what would be the value and units of the rate constant? -TA = 0.005 C, mol/cm. min The pendulum consists of two rods: AB is pin supported at A and swings only in the y-z plane, whereas a bearing at B allows the attached rod BD to spin about rod AB. At a given instant, the rods have... For the enzyme-substrate reaction , the rate of disappearance of substrate is given by What are the units of the two constants? -TA 1760[A][E] 6+ CA mol/m.s Snake-Eyes Magoo is a man of habit. For instance, his Friday evenings are all alike-into the joint with his week's salary of $180, steady gambling at "2-up" for two hours, then home to his family... The following four problems consider an isothermal single-phase flow reactor operating at steady-state and constant pressure. Given a gaseous feed, C A0 = C B 0 = 100, A + 2B R , C B = 20. Find X A... In an isothermal batch reactor 70% of a liquid reactant is converted in 13 min. What space-time and space-velocity are needed to effect this conversion in a plug flow reactor and in a mixed flow... Optimize the design of a distillation column to separate 225 metric tons per hour of an equimolar mixture of benzene, toluene, ethylbenzene, paraxylene and orthoxylene with minimum total annualized... A pump operating at 80% efficiency delivers 30 gal/min of water from a reservoir to an open-air storage tank at a chemical plant 1 mi away. A 3-in, schedule-40 pipe is used, and the frictional losses... Explain the physical meaning of the intersection of the NPSH R and NPSH A curves. What are the four basic components of a lending transaction? Why were these unified in the first place and why are they being decomposed now through securitization? Suppose the (1) + (2) system exhibits liquid-liquid immiscibility. Suppose we are at a state where G 1 /RT = 0.1 and G 2 /RT = 0.3. The Gibbs energy of mixing quantifies the Gibbs energy of the... For a gas reaction at 400 K the rate is reported as (a) What are the units of the rate constant? (b) What is the value of the rate constant for this reaction if the rate equation is expressed as dp A... The system is a large ship and its contents. The inside of the ship and the air outside the ship are at the same temperature. The ship is sailing north at a constant speed of 20 knots. The engines... Several systems and processes are described below. For each of them, determine whether the system is at steady state, at equilibrium, or neither. Determine also whether any of these adjectives are... A mass of 500 lb m of 40 wt% sulfuric acid solution at 140F is diluted with 200 lb m of pure water at 100F. What is the concentration of the resulting solution? What is the heat effect (liberated or... a. Example 14-1: Mass Transfer of Oxygen to a Burning Carbon Particle Wolfram and Python 1. Vary each slider to find the parameter to which the flux W Ar is most sensitive. 2. What happens when the... Synthron Explosion LEP. Read the Synthron example in Chapter 13 Additional Materials on the CRE Web Site (http://www.umich.edu/~elements/6e/13chap/obj.html#/additional-materials/) Wolfram and Python... Safety culture: Classify the following activities as either strengthening or weakening process safety culture. Explain why. a. The plant manager schedules an important safety meeting that everyone... A 3-mm-thick composite specimen is tested, as shown in Figure 9.4a, and the compliance, \(s=u / P\), as a function of the half-crack length, \(a\), is shown in Figure 9.9. In a separate test, the... A randomly oriented, short-fiber-reinforced composite plate having a central through-thickness crack of length \(2 a\) is subjected to a uniaxial stress \(\sigma\), as shown in Figure 9.1. If the... The tank is used to store a liquid having a specific weight of = 80 lb/ft 3 . If it is filled to the top, determine the magnitude of force the liquid exerts on side ABCD. 1.5 ft 2 ft E 1.5 ft B A 5...
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