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Problem 1: Determine the damping ratio if the peak to peak amplitude of an accelerometer attached to a vibrating beam goes from 5V to 3V after 6 cycles of oscillation.
Problem 2: A 1/8 in. thick aluminum bar 1 in. wide is mounted in a cantilevered condition, as we done in lab. If a 3 lb weight is hung 15 inches from the mount and a strain gauge is place 2 in. from the mount on the top of the beam, what strain is expected to be observed?
(Aluminum 6061-T6 E = 10,000 ksi, v = 0.33)
a pulley 250 mm in diameter drives a second pulley 1000 mm in diameter by means of a belt. the moment of inertia of the
The 500-lb ram of a pile drive falls 4 ft from rest and strikes the top of an 800 lb pile embedded 3 ft in the ground. Immediately after impact the ram is seen to have no velocity. Determine the coefficient of restitution e and the velocity v of the ..
a pneumatic accumulator arranged to maintain a constant pressure as air enters3 or leaves it is set for 200 psia.
1.7 pound-mass of water fills a container whose volume is 3.7ftsup3. the pressure in the container is 70 psia. how do
in a chain link fencing machine if we are using 2mm gi wire at the feed of 10mm per second through a self centering
a uniform bar ab of mass m 1.00 kg and length l 30.0 cm lies a horizontal plane. an additional mass m 1.00 kg is
a hollow shaft has an outsaid diameter of 35 mm and an insaid diameter of 25 mm complute the torsional shear stress in
consider an air-water heat exchanger. air flowing steadily at the rate of 0.5 kgs enters the heat exchanger at 100 kpa
a truck starts from rest and travels with a constant acceleration of 1.5 fts2. after a time t it maintains a constant
water enters vertically and steadily at a rate of 35 ls into the sprinkler shown in figure q.4. the sprinkler has
in cooling situations where the desired temperature range is large two refrigeration cycles can be stacked to create a
Saturated water vapor is contained in a rigid container. Heat is then added until the pressure and temperature become 812.075 MPa and 400 C, respectively. What was the initial temperature of the steam?
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