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A 2-kg sphere, A, is moving toward the right at 4 m/s when it strikes the end of a 5 kg slender bar, B. The coefficient of restitution is e=0.4. The duration of the impact is 0.002 seconds. Determine the magnitude of the average horizontal force exerted on the bar by the pin support as a result of the impact.
a cylindrical bar of radius 15 mm and length 100 mm is held at both ends. if at 30 degc no axial force exists in the
a rigid container with a volume of 0.17m3 is initially filled with steam at 180kpa 340c. it is colled to 90c. a at what
suppose that 1000 is deposited into an account that pays 5 intrest per year. at the end of each year th amount in the
consider a 40 gal. 40000 btuhour electric hot-water heater. assume the controls are set to heat water to 140 degree f
What is differential levelling? list the procedure for carrying out a differential levelling exercise where one point is beyond the range of the instrement . 100 word limit
the lower end of the 30 kg slender rod is displaced a small amount and released from the rest. determine the natural frequency of vibration. the springs have stiffness of 500 N/m and they are stretched when the rod is hanging vertically.
two ships a amp b are moving at constant velocities. at t0 the position of ship a is 2.41 miles east and 3.14 miles
an important part of a project is to identify the key process input variables kpiv and key process output variables
calculate the overall efficiency the heat rate mw and the total fuel rate kgs of a combined-cycle power plant 1 if no
two rigid tanks that are each 20 ft3 are connected by a line containing a control valve that is initially closed. tank
a pipe with closed ends has an outer diameter of 80 mm and a wall thickness of 3.0 mm. it is subjected to an internal
What load P allow can be supported at the midpoint of the bar if the yield stress in the steel wires is 220 MPa and in the aluminium wire is 80 MPa? A saftey factor of n = 2 is needed.
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