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The coefficients of friction are ms=0.40 and mk=0.30 between all surfaces of contact. Determine the smallest force P required to start the 30-kg block moving if cable AB (a) is attached as shown, (b) is removed.
Two solid cylindrical rods (1) and (2) are joined together at flange B and loaded. If the normal stress in each rod must be limited to 110 MPa, determine the minimum diameter D required for each rod.
an electrical power transformer of diameter 250 mm and height 600 mm dissipates 1200 w. it is desired to maintain its
calculate the vapor pressure-temperature relationship of liquid iron.
A 9º wedge is inserted using a force of 1000 lbs. The static coefficient of friction between the wedge and the log is 0.50. Determine the force required to pull the wedge out.
a solid cylinder of radius r and mass m is initally at rest on the bed of a truck. the distance from the center of the
a spring-loaded a toy gun is used to shoot 1 -oz bullets vertically upward. the undeformed length of the spring is 6
an aircraft is in level flight at 225 kmhr through air at standard conditions. the lift coefficient at this speed is
two kilogram of water initially at 200 degc and 0.4 mpa undergoes an isothermal internally reversible compression
what are the two possible arrangements for a concentric tube heat exchanger? for each arrangement what restrictions are
a 1 hp electric motor drives a water pump. the pump volumetric flow rate is 2103 m3s at 300 k.a determine the head loss
The maximum flow past a circular cylinder is 2 X the Up stream velocity. The max velocity occurs at the center line of the top of the cylinder.
a refrigerant 134a at 140 kpa and -10 degree celcius is compressed by an adiabatic 16kw compressor to an exit state of
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