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A pendulum of period 2 s is released from rest at an inclination of 5 degrees to the (downward) vertical. What is its angular velocity when it reaches the vertical? When it first returns to its starting point, it is given an impulsive blow towards the vertical that increases the amplitude of swing to 10 degrees. Find its subsequent angular position as a function of time.
The Zacchini family was renowned for their humancannonball act in which a family member was shot from a cannon using either elastic bands or compressed air. what was the magnitude of the force propelling him
you want to design an oval racetrack such that 3200 lb racecars can round the turns of radius 1000 ft at 104 mih
The karat is a dimensionless unit that is used to indicate the proportion of gold in a gold-containing alloy. What is the volume of gold in a 16.0-karat gold necklace whose weight is 1.15 N
The catapult on an aircraft carrier can take an aircraft weighing 300,000 N from 0 to 80.6 m/s in 12.6 seconds, find the acceleration of the aircraft when it launches
A 28.0 {rm kg} child plays on a swing having support ropes that are 2.20 {rm m} long. A friend pulls her back until the ropes are 45.0^circ from the vertical and releases her from rest.
Light from an argon laser strikes a diffraction grating that has 5340 lines/cm. Determine the wavelength of the laser light
A pendulum consisting of a ball of mass m hanging from a massless rope is dropped from a height h. How high does the ball on the pendulum rebound from its collision with the block
A diver of mass 68 kg stands at the end of a uniform diving board of mass 16 kg and length 4:5 m, Calculate the magnitudes of the forces exerted by the pedestals on the diving board
Two speakers face each other and radiate coherently and in phase. How many loud maximum intensity positions are there between the speakers
a flat plate of irregular shape has a mass of 4 slugs and a radius of gyration about the z axis of kg=.8ft , calculate the resulting angular velocity of the plate
The 150-lb man lies against lies against the cushion for which the coefficient of static friction is 0.5. Determine the resultant normal and frictional forces the cushion exerts on him if, due to rotation about the z axis, he has a constant speed v =..
For lead 82Pb206 (atomic mass = 205.974440 u) obtain the mass defect in atomic mass units
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