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Two particles are moving along a straight line starting beginning from x(0) = 0 with a velocity of v(0) = 10 at time t = 0. Both the particles begin to decelerate. The magnitude of acceleration of the first particle is directly proportional to the time, t and that of the second particle is directly proportional to the speed of the particle. (a) At time t = 2 which particle has the higher velocity? (b) Which particle comes to rest (zero velocity) first and at what time does this occur? Assume the constants of proportionality to be 1.
spherical balloon has a diameter d1 when the pressure of the gas inside is p1 and atmospheric pressure is po. the gas
Two slender rods of negligible weight are pin-connected at A and attached to the 18-lb block B and the 80-lb block C as shown. The coefficient of static friction is 0.55 between all surfaces of contact. Determine the range of values of P for which..
give a proposed design and analysisnbspprincipal features and working principle of any mechanisms using diagrams to
the entire assembly is placed in an environment whose temperature is 200c. determine the volume of chamber 1 when thermodynamic equillibrium has been estabilished.
air flow enters a constant-area insulated duct with a mach number 0.2. the duct diameter is 10 mm and the friction
Determine an equation for the efficiency of the gear train in terms of the load (torque) on shaft 2 and determine the input power required at shaft 1.
a beam consists of three planks connected as shown by 3/8 in diameter bolts spaced every 12in.along the longitudinal axis of the beam.knowing that the beam is subjected to a 2500lb vertical shear, determine the average shearing stress in the bolts..
an air compressor takes air from outdoors at 28deg c and 101.2kpa and compresses it to 790kpa and 50 deg c. the air
Estimate the torque required at the base of a flag pole to hold it in place in a 30mph wind. Assume the flag pole is a vertical cylinder with D=10cm and L=10m, and assume the wind drag force is uniform along the pole.
the inside surfaces of a pottery oven are all at 500oc. a cube of clay 10 cm on each side ? 0.9 initially at 20oc is
determine the location Yc of the centroid C of the beam cross sectional area . then compute the moment of inertia of the area about the x axis.
2103 v 40 v b c qv e0pr2d r qdvpe012 r 4.24 m 42 a parallel-plate air-gap capacitor has a capacitance of 0.14 f.
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