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A 45-lb uniform square plate is suspended from a pin located at the midpoint A of one of its 1.2-ft edges and is attached to springs, each of constant k = 8 lb/in. If corner B is given a small displacement and released, determine the frequency of the resulting vibration. Assume that each spring can act in either tension or compression
a car weighing 9800N is moving with the speed of 40km/h. on the application of brakes its comes to rest after traveling a distance of 50m. calculate the retarding force
1 research any one species and describe its ecological niche. for one factor of the niche describe what you think might
What is the free-fall acceleration at the surface of the moon and What is the free-fall acceleration at the surface of the Jupiter
a radiochemist wants to carry a small vial containing 1109 bq of cobalt-60 solution from one laboratory fume hood to
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.9 m/s2 for 4.5 seconds. What is the acceleration of the tortoise
a grandfather clock has a pendulum length of 0.7 m and mass bob of 0.4 kg. a mass of 2 kg falls 0.8 m in seven days to
A Porsche 914 accelerates uniformly from 0 to 60 mph in 5 sec. Assuming a frictionless air track and a glider mass of 550 g, Obtain the mass that one must hang from the glider
n a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.6 ? 10-17 N during the first 1.9 cm of the tube's length, Find the speed of the electrons when they hit the screen
A billiard ball moving at 6.00 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.94 m/s at an angle of 34.5° with respect to the original line of motion, find the struck ball's velocity after the collisi..
A damped mass-spring system oscillates at 140 Hz. The time steady of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.6 cm and the energy of the oscillating system is after that 86 J.
A charge of 7 nC is placed uniformly on a square sheet of nonconducting material of side 17 cm in the yz plane. What is the magnitude and direction of the electric field next to the sheet and proximate to the center of the sheet?
A robot unloads a finished component from a machine and places it on a gravity conveyor. The conveyor accelerates from rest until it reaches the bottom of the conveyor 4.5 seconds later. The component is traveling at a velocity of 1.35 m/s when it..
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