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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
A container has a circular hole d=5cm on the bottom and is sealed by a metal ball weighs W=2.452, with radius 4cm. Water is H=20cm deep. Calculate the minimum force F to lift the ball.
Mass of m1=300kg is placed in sea water with density rho =1025kg/m^3. On top of the cone is navigation light for boats. The mass is m2 =55kg. Calculate the height of height of cone dipped into sea w
Assume it is just sitting with air around it. A). How high can the water rise above the bottom of the tank before it will begin to float?
Check these statements for sea-level conditions. Calculate the effect of increasing the hot-air maximum temperature to 250 degrees Fahrenheit above ambient.
The initial temperature of the copper is 60oC and the final equilibrium temperature of the copper and the water is 21.24oC. Estimate the initial volume of the water used, in m3.
The sliding distance after the first 0.5 seconds g. if the plane of the cart is 3 m long, calculate the time when the block slides out of the edge h. Draw the a-t, v-t, and s-t diagrams.
Find out at what depth a concentration of 1.0% carbon would be present after this diffusion process? D for diffusion at this temperature in steel is 5.9 x 10 -12 m2/s.
If the diffusion coefficient for Al in steel is 7.2x10-9 cm2/sec at the hot dipping temperature, determine the time required to achieve the required concentration at the required location below the
Steel reinforcement rods had been pulled to a thickness below regulatory standards. What is the effect of this stretching on the microstructure and materials properties of the rebar?
Determine (a) the rate of shaft work transfer (in kW), (b) the electrical work transfer (in kJ) in 10 s, (c) the rate of heat transfer (in kW).
How to determine the COP of this system, given only that the first process is isobaric, the second is PV = constant, the final process is isochoric, and the pressure after the second process is 3 ba
The frictional driving force acting on the wheels of the 2.4-Mg van is F(d) = (600t^2) N, where t is in seconds. If the van has a speed of 20 km/hr when t=0s, determine its speed when t=5s.
A balloon in the upper atmosphere is filled with water vapor with a speci?c volume of 10 m3 /kg. a) If its volume is 25 m3, how many moles of water vapor are in the balloon?
On top of the water is 0.3 m of kerosene, which is open to the atmosphere. If the temperature is 20 C, what is the gage pressure at the bottom of the tank?