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a wire of uniform cross section weighing 8 ozft is used to form the wire figure shown which is suspended from cord ad
a 32-kg block attached to a spring of constant k 12 knm can move without friction in a slot as shown the block is
an instrument package b is placed on the shaking table c as shown the table is made to move horizontally in simple
a 16-in deflection of the second floor of a building is measured directly under a newly installed 8200-lb piece of
the 100-lb platform a is attached to springs b and d each of which has a constant k 120 lbft knowing that the
a 35-kg block is supported by the spring arrangement shown the block is moved vertically downward from its equilibrium
an 8-kg collar c can slide without friction on a horizontal rod between two identical springs a and b to which it is
a 30-lb uniform cylinder can roll without sliding on a 15deg-incline a belt is attached to the rim of the cylinder and
the 5-kg uniform rod ac is attached to springs of constant k 500 nm at b and k 620 nm at c which can act in tension or
a circular disk of radius r 08 m is suspended at its center c from wires ab and bc soldered together at b the
a horizontal platform p is held by several rigid bars which are connected to a vertical wire the period of oscillation
a 10-lb uniform rod cd of length l 22 ft is welded at c to two elastic rods which have fixed ends at a and b and are
a uniform disk of radius r 120 mm is welded at its center to two elastic rods of equal length with fixed ends at a and
6-lb slender rod is suspended from a steel wire which is known to have a torsional spring constant k 15 ft lbrad if
a 45-lb uniform square plate is suspended from a pin located at the midpoint a of one of its 12-ft edges and is
a 15-lb uniform cylinder can roll without sliding on an incline and is attached to a spring ab as shown if the center
a connecting rod is supported by a knife edge at point a the period of its small oscillations is observed to be 103 s
a variable-speed motor is rigidly attached to a beam bc when the speed of the motor is less than 600 rpm or more than
9-lb collar can slide on a frictionless horizontal rod and is attached to a spring of constant 25 lbin it is acted upon
a motor weighing 400 lb is supported by springs having a total constant of 1200 lbin the unbalance of the rotor is
as the rotational speed of a spring-supported motor is slowly increased from 300 to 500 rpm the amplitude of the
a 180-kg motor is bolted to a light horizontal beam the unbalance of its rotor is equivalent to a 28-g mass located 150
a counter-rotating eccentric mass exciter consisting of two rotating 400-g masses describing circles of 150-mm radius
1100-lb machine element is supported by two springs each of constant 3000 lbft a periodic force of 30-lb amplitude is
a uniform rod of mass m is supported by a pin at a and a spring of constant k at b and is connected at d to a dashpot