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A hoist has a winding drum 0.9 m effective diameter and a radius of gyration of 0.35 m, the mass of the drum being 100 kg. A load of 320 kg is to beraised 36 m, the mass of the lifting rope being 1 kgim. If the acceleration is1.8 mis2 until a constant velocity of 6 mis is reached, find the power necessary just at the end of the acceleration.
A 8.90-m ladder with a mass of 24.4 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 261 N. At the instant the top of the ladder leaves the ground, the ladder experiences an angular accel..
A sinusoidal wave traveling on a string has a period of 0.21s, a wavelength of 32cm, and an amplitude of 5.0cm. compute the speed of this wave
a solid cylinder (M=2.07 kg, R=0.117 m) pivots on a thin, fixed, frictionless bearing. Calculate the angular acceleration of the cylinder
When the electric power was turned off, the electric motor originally running at 1800 rpm comes to rest in 15.0 s. Find out the angular acceleration, the angular velocity at the end of 5.0 s, and the total angle turned through in 15.0 s.
Consider an object on an incline where friction is present. The angle between the incline and the horizontal is ?, Find an expression for the acceleration of this object. Treat down the incline as the positive direction
A small sculpture made of brass (rbrass = 8470 kg/m^3) is believed to have a secret central cavity. What is the volume of the secret cavity
Two isotopes of carbon, carbon-12 and carbon-13, have masses of 1.993 10-26 kg and 2.159 10-26 kg, Determine the spatial separation between the two isotopes after they have traveled through a half-circle
Two particles of masses M1 = 93000 kg and M2 = 4200 kg are initially at rest an a distance 148.1 km apart. How much time does it take for the particles to collide
A force of 150 N is applied to the edge of a disk. If the disk has a mass of 0.75 Kg with a radius of 0.50 m, how fast is its angular acceleration
A guitar is fixed at both ends. If you tighten it to increase its tension. Both the frequency and the wavelength increase The wavelength increases but the frequency is not affected. The frequency of its vibration mode will increase buts its wavelengt..
Explain how will the acceleration due to gravity at the surface of planet X compare to the acceleration due to gravity at the surface of earth?
While driving north at 25 m/s during a rainstorm you notice that the rain makes an angle of 38 with the vertical. find the speed of the raindrops relative to the ground
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