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Determine the velocity of on the outer rim of the spool at the instant shown when the cable is pulled to the right with a velocity of v. the spool rolls without slipping.
Determine the current supplied if the final temperature is 70oC. Also, show the process on a T-v diagram with respect to the saturation lines.
If the specific heat of brass (C) is 0.385 kJ/kg.K, determine the rate at which heat needs to be removed from the water in order to keep its temperature constant at 50°C.
A syringe has diameter d= 4 cm and its piston is pressed with the force F = 30 N. Find the maximum velocity of the water streaming from the syringe needle.
There are 18 turns in the primary coil and 20 turns in the secondary coil. The peak voltage across the resistor is 60.5 V. What is the peak emf of the generator?
A vacuum cleaner is plugged into a 120.0-V socket and uses 3.6 A of current in normal operation when the back emf generated by the electric motor is 82.0 V.
Through what angle must the door rotate so that the magnetic flux that passes through it decreases from its maximum value to 0.26 of its maximum value?
The same net magnetic flux passes through the second surface. (a) Determine the area of the first surface. m2 (b) Find the smallest possible value for the area of the second surface. m2
You think this is a polytropic compression process. Write and solve a thermodynamics problem to determine the polytropic exponent for this process.
Kinetic and potential energy changes from inlet to exit can be neglected. Determine the compressor power, in hp, and the volumetric flow rate at the exit, in ft^3/min.
Steam enters a well-insulated nozzle at 300lbf/in^2, 600 degrees F, with a velocity of 100 ft/s and exits at 40 lbf/in^2 with a velocity of 1800 ft/s.
The length of the conductor in the magnetic field is 1.5 ft, and its velocity is 10,800 ft per min. Find the voltage induced in the conductor if the flux density is 10,000 lines per sq in.
What magnetic flux density is required to induce a voltage of 0.3 V in a 10-in. conductor traveling at right angles to the magnetic field with a velocity of 10 ft per sec?
Now the valves are slowly opened and heat is transferred so the water reaches a uniform state at 250 degrees Celsius with the valves open. Find the final volume and pressure and the work and heat tra
The flux density of a magnetic field is 20,000 lines per sq in. What length of conductor should cut the flux to produce a voltage of 0.5 V when the conductor is moving at 20 ft per sec?
Write down the continuity equation, Navier-Stokes equations and the boundary conditions for the flow in the annular region using a cylindrical coordinate system.
Find the voltage induced in the conductor if the entire con¬ductor cuts the flux. The flux density is 10,000 lines per sq in., and the speed of the conductor is 12 ft per sec.
What is the quality of the steam at the point when the piston first begins to descend (State 2)? What is the quality of the steam at the final condition (State 3)?
Crates a and b weigh 100 lb and 50 lb, respectively. If they start from rest, determine the their speed when t = 5s. Also, find the force exerted by crate a on crate b during the motion.
lf the 50-kg crate starts from rest and achieves a velocity of v = 4 m/s when it travels a distance of 5 m to the right, determine the magnitude of force P acting on lhe crate.
The diameter at the point of fracture is 6.58 mm, and the fractured gauge length is 68.3 mm. Calculate the ductility in terms of (a) percent reduction in area (percent RA), and (b) percent elongatio
Determine the heat loss per unit mass from the water (W/Kg) when the tube is full of water.\ b)determine the heat loss from the water (W/Kg) when the tube is half full.
A 2 in diameter straight round shaft is subjected to a bending of 2000 ft.lb a) What is the nominal bending stress at the surface?
The gate opens when water levels reaches H=2m on the left and h=0.4m on the right. Calculate distance x between the hinged point O and the bottom of the gate.
What is the nominal shear stress at the surface? If a hallow shaft of inside diameter 0.85 times outside diameter is used, what outside diameter would be required to give the same outer surface stre