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Repeat Sample Problem 9.2, except use a pin made of wrought-aluminum alloy 2011-T3 having a 95 Brinell hardness.
Problem 9.2
Aluminum plates are fastened together with brass rivets. The aluminum plates have a total exposed area of 1.5 ft.2 and the rivets have a total exposed area of 2.5 in.2. The environment involves moisture and some salt.
(a) Which metal will corrode?
(b) If twice as many rivets are used, what effect would this have on the total rate of corrosion?
Metal balls 10 mm in diameter are to be annealed by heating them to 827°C then allowing them to cool slowly in air at 27°C to the point where they are in thermal equilibrium with the air. 2000 balls are annealed in one hour’s time. What is the total..
the 50-mm radius pulley a of the clothes dryer rotates with an angular acceleration of alpha 24theta12 rads2 where
The magnitudes of a pnp transistor's emitter and base currents are 6 and 0.1 mA, respectively. The magnitudes of the voltages across the emitter-base and collector-base junctions are 0.65 and 7.3 V. Find
One part of the gauge section has an initial cross-sectional area that is 0.99 times that of the rest of the gauge section. What will be the true strain in the larger area after the smaller area necks and reduces to 50% of its original area?
What is the speed of the inertial frame in which the total momentum of the system is zero?
solution the slider a has a mass of 2kg and moves in a slot in a vertical sliding plate. i what horizontal acceleration
Write this relationship in dimensionless form. A model windmill, of diameter 50 cm, develops 2.7 kW at sea level when V =40 m/s and when rotating at 4800 r/min.
three kg of gas in a piston cylinder assembly undergo a process during which the relationship between pressure and
a water pump is attached to an electric motor. the inlet and outlet diameters of the pump are the same. the volume flow
Determine the energy stored in the inductor WeS and the energy dissipated by the resistor WeL for i > 0 if i(0) = 10 A.
Despite the promise of nanotechnology (see Horizons in Secs. 1.6 and 2.2), some say it involves risks requiring scrutiny. For instance, the tiny size of nanoparticles may allow them to evade the natural defenses of the human body,and manufacturing..
The uncertainty in the radiant energy flux measurement is ±225 W/m2 for both measurements, and the second measurement is 2.23 times as large as the first measurement. Calculate the temperature of the second material and the uncertainty.
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