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A particle P of mass 4 kg moves under the action of the force F = 4 i + 12t2 j N, where t is the time in seconds. The initial velocity of the particle is 2 i + j + 2 k m s-1.
Find the work done by F, and the increase in kinetic energy of P, during the time interval 0 ≤ t ≤ 1. What principle does this illustrate?
a 45 kg machine is mounted on a spring of stiffness 8 times 10 5 nm. when the machine operates at 32 hz. the machines
Silicon rubber has a Poisson's ratio of 0.4. Consider a silicon rubber drain hose for a surgical procedure; the hose has an outer diameter of 4 mm and a wall thickness of 0.5 mm. How much does the lumen (interior space) of the catheter constrict if t..
Would the same costs be justified if 10 lives were saved? How much is a life worth? Do the earning capabilities of the people affected make a difference to this judgment?
calculate the max deflection in a titanium alloy cantilever beam that can support a 100n load at the end of the beam
a rigid tank which has a volume of 0.1 m3 contains 1kg of water at 100 celcius. a 3kwatt heater is energized until the
A punch press with flywheel adequate to minimize speed fluctuations produces 120 punching strokes per minute, each providing an average force of 2000 N over a stroke of 50 mm.
A 1200 kg car moving at 20 km/h is accelerated at a constant rate of 4 m/s^2 up to a speed of 75 km/h. What are the forces (N) and total time (s) required?
What is the major difference between the MRP push systems and the pull system?
Based on the information discussed in fender design and ships characteristics, estimate the size and number of fenders that will be required for budgeting purposes. Basis for selection of vessel characteristics and fender type must be discussed to..
an auditorium has to be air-conditioned first by cooling and dehumidifying and then heating for summer when the outdoor
Finding the volume of hydrogen, A hydrogen filled balloon of the type used in cosmic ray studies is to be expanded to its full size which is a 100-ft diameter sphere, without stress in the wall at an altitude of 150,000 ft.
Determine the evaporator and condenser pressures, each in lbf/in.2, the mass flow rate of refrigerant, in lb/min, the compressor power input, in horsepower, and the coefficient of performance for (a) Refrigerant 134a and (b) ..
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