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The crankshaft of a small punch press rotates 100 rpm, with the shaft torque fluctuating between 0 and 1000 Nm in accordance with curve A of Figure P1.67. The press is driven (through a gear reducer) by a 1200-rpm motor. Neglecting friction losses, what motor power would theoretically be required:
(a) With a flywheel adequate to minimize speed fluctuations.
(b) With no flywheel.
The simple beam AB shown in the figure is subjected to a concentrated load P and a clockwise couple M1= PL/3 acting at the third points. Draw the shear-force and bending-moment diagrams for this beam.
a thermodynamic system undergoes a cycle composed of a series of three processes for q1 10 kj q2 30 kj q3 -5 kj. for
Write a research paper about Female inventors.
Starting from rest at s = 0, a boat travels in a straight line with the acceleration shown by the a-s graph. Determine the boat's speed when s = 50 ft, 100 ft, and 150 ft.
What the difference between Solar power and Raking system? What each of them effect in the cost? How much get the sun each of them
the presence of raindrops in the air during a heavy rainstorm increases the average density of the air-water mixture.
Evaluate the partial derivatives of the shape functions at ψ = 1/4 and η = 1/2 of a quadrilateral element shown in Figure 3.32
two steel plates a572 fy 50ksi are welded together to form an inverted t-beam. determine the maximum bending stress
It is machined from steel having a hardness of 150 Bhn. With a safety factor of 2, estimate the value of reversed torque that can be applied without causing eventual fatigue failure.
a four-cylinder spark ignition engine has a compression ratio of 8 and each cylinder has a maximum volume of 0.6l. at
A starship in a binary system is located a distance R from one star and a distance 2R from the other star. The starship wants to launch a deep space probe of mass m. The probe has no propulsion system of its own. What is the escape velocity from the ..
An insulated rigid tank contains a saturated liquid-vapor mix of water initially at a pressure of 100 kPa. The mass of the mixture is 5 kg, but only 75.6 % of the total mass is liquid. An electric resistance heater is turned on within the tank until ..
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