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1100-lb machine element is supported by two springs, each of constant 3000 lb/ft. A periodic force of 30-lb amplitude is applied to the element with a frequency of 2.8 Hz. Knowing that the coefficient of damping is 110 lb . s/ft, determine the amplitude of the steady-state vibration of the element.
Unpolarized light passes through two polaroid sheets. What fraction of the initial light is transmitted
A cannon fires a cannonball from the top of a wall at a speed of 23.02 m/s and an angle of 19.67 degrees from the horizontal. What is the horizontal distance from the wall where the fired cannonball hits the ground
Assume four protons were at the corners of a square. The length of each side of the square is 1.52 x 10^-9m. If Q1 is on the upper right corner, calculate the magnitude and direction of the resultant force on Q1. What is the gravitational attracti..
If the converging lens in a slide projector has a focal length of 104.00 mm and the slide is located 109 mm from the lens, Determine the dimensions of the image of the slide
A mass M=151 kg is suspended from the end of a uniform boom as shown. Calculate the tension in the horizontal cable
Stefan's Law describes the relationship between solar (black body) radiative output and black body temperature. what is the magnitude of the Solar constant
A member of an aircraft maintenance crew wears protective earplugsthat reduce the sound intensity by a factor of 380. When a jetaircraft is taking off, the sound intensity level experienced bythe crew member is 84 dB.
A golf ball of mass 0.045 kg is hit off the tee at a speed of 40 m/s. The golf club was in contact with the ball for 5.3 × 10-3 s. Discover the magnitude of the impulse imparted to the golf ball.
A cylindrical piston sits on top of hydraulic fluid that exerts a force of 240 N on the piston. Find the magnitude of the net force on the piston
What is the shape of graph of distance vs speed for constant acceleration?
A ball is thrown horizontally with a speed of Vo = 20.0 m/s from the top of a building of height h = 42.1 meters. What is the angle below the horizontal made by the velocity vector of the ball
One particular type operates at 3000 volts and has a holding power of 2 atmospheres (2 x 10^5 pascals). If the insulator is Mylar (relative permittivity = 3.2), what is its thickness?
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