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Consider a particle of mass m moving in two dimensions between two perfectly reflecting walls which intersect at an angle alpha at the origin. Assume that when the particle is reflected, its speed is unchanged and its angle of incidence equals its angle of reflection. The particles is attracted to the origin by a potential U(r)=-c/r^3 where c is some constant and r is the distance of the particle to the origin. Now start the particle at a distance R from the origin on the x-axis with a speed v and initial angle with x-axis theta. Show that the magnitude of the angular momentum is conserved when it reflects off a wall. Show that the angular momentum of the particle is conserved in between collisions (i.e. when the particle is moving in free space under the potential field U(r)). Determine the equation for distance of the closest approach to the origin.
Consider a simply supported beam of length 50 ft subjected to a uniformly distributed downward load of 10 kips/ft from x=10 ft to x=40 ft and concentrated downward loads of 100 kips at x=10 ft and x=40 ft. Determine the shear and moment diagrams from..
let x denote the sum of the face values of a die rolled twice i.e. the outcome of this experiment is the sum. assume
consider the following probability distribution function for a continuous random variablefx 3x6235 -2ltxlt-3
a mass of 6 kg of a saturated liquid plus vapor mixture of water exists at 175 kpa in a well-insulated rigid tank.
the piston-cylinder assembly shown in the figure is fitted with a linear spring. the spring constant is k 15 knm and
how does the total free energy for transformation ?gtotal vary for a liquid-solid transformation versus that for a
consider an investment in a project having a first cost of 500000 operating and maintenance costs of 35000 per year a
at a particular location in the ocean the temperature near the surface is 80of and the temperature at a depth of 1500
a piston- cylinder assembly with initial volume of 80 liters contains 4kg of r-134a at a pressure of 160 kpa state 1.
in a laboratory scientists produce 233th90 from 238u92 by two different processes. in process a a single alpha particle
An impeller rotating at 1150 rpm has the following dimensions: b1=3 cm, b2 =1.9 cm, d1=.18 m, d2=.38 m, B1=18 deg, B2=20deg. Assuming radial inlet flow; draw the velocity triangles, find the flow rate and determine the theoretical head and shut off h..
a heat pump supplies 40 kw of heat to maintain the inside of a house at 25c in cold winter months when the ambient
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