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1. An open beaker, atmospheric pressure of 101.325 kPa, has a layer of mercury 20 cm and a layer of water 15 cm. What is the pressure at the bottom of the beaker?
2. What will a totally immersed neutrally buoyant body lowered to an arbitrary depth in an incompressible fluid do when left alone?
3. Determine the resultant force per metre on a dam wall 20 m high if the water level is at 14 m.
r134a is condensed at a constant temperature of 30degc as it flows through the condenser of a refrigerator by rejecting
structure of body- centered cubic bcc crystal.a. the body-center atom in a conventional bcc unit cell has
the 50-kg homogeneous smooth sphere rest on the 30 degree incline A and bears against the smooth vertical wall B. calculate the contact forces at A and B.
consider the spring mass system shown in figure 1. the block with mass 4m slides on a smooth frictionless surface and
Energy balance, property tables, phase changes. Consider water in a pot on an alien planet. You will the pot with 1.002 L (.001002 m3) of water initially at 20°C and 75 kPa (their atmospheric pressure is different than ours). How much mass is in the ..
A simple gear train with spur gears that contains a pinion, an idler, and a gear utilized in order to transmit 10 hp using a train ratio of 4.5:1. The pinion has 14 teeth and the idler has 30 teeth. The input shaft operates at 2000 rpm. The pressure ..
the following data apply to the auxiliary power unit apu on the boeing 777 single-shaft unit driving separate load
steam at 1 mpa with a quality of 0.8 passes through a throttling device that causes the pressure to rapidly drop to 200
in a refrigerator cycle low saturated liquid enters an evaporator and exits as saturated vapor. the saturated vapor is
For a laminar flow between two parallel plates shown figure below, obtain an expression for the pressure drop and velocity profile. Also, obtain an expression for Frictional dissipation and the friction factor.
a tungsten wire 0.005mm in dia and 2 mm in length is placed horizontal in stagnant air. if we need to maintain the wire
a system receives 10 kj of energy to do something. the system is adiabatic and its super efficient. how much work
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